CN104255801B - The crop with bactericidal action mends potassium composition and its production and use - Google Patents

Abstract

The invention discloses a kind of crop with bactericidal action and mend potassium composition, said composition is grouped into by the one-tenth of following weight content: saleratus 60-80%, Tea Saponin 10-20%, phosphorous acid hydrogen salt 5-15%, potentiating adjuvant therefore 1-15%；Described saleratus, Tea Saponin and phosphorous acid hydrogen salt constitute the active sterilization component of composition.The present invention provides above-mentioned crop the most simultaneously and mends the preparation method of potassium composition and purposes, its purposes be following at least one: be used for preventing and treating strawberry or Powdery Mildew in Tobacco, Alternaria alternate or common mosaic；Potassium foliage fertilizer is mended as tobacco；Promoting that cigarette strain plant height stem girth is grown, blade thickens, and slows down the potassium lost of tobacco bottom leaf.

Description

The crop with bactericidal action mends potassium composition and its production and use

Technical field

The invention belongs to plant protection art, particularly relate to a kind of have improve performance have bactericidal action crop mend potassium combination Thing and purposes, concretely relate to a kind of saleratus, phosphorous acid hydrogen salt and Tea Saponin etc. of comprising and have the work of bactericidal action Thing mends potassium composition and said composition purposes.

Background technology

Plant is equivalent to the superior being demand to sodium to the demand of potassium, and potassium is composition necessary to plant growth, and plant passes through root System optionally absorbs water-soluble state potassium from soil, and potassium distribution is concentrated mainly in the most active organ of plant metabolism and tissue.Plant Thing is decided by floristics to the absorption of potassium, tobacco, tomato, potato and the capsicum in plant of Solanaceae, the buckwheat in polygonaceae plant Wheat and beet, sunflower in feverfew etc. is at a relatively high to the demand of potassium.Potassium can promote the activity of plant endoenzyme, strengthens Photosynthesis and the ability such as plant drought, cold-resistant, anti-saline and alkaline, disease and insect resistance, potash fertilizer improves plant product quality aspect also simultaneously Play an important role.Showing according to international organization's investigation, potassium is to plant is healthy and resistance against disadvantage has substantial connection, and it can promote Crop growth, reduces pest and disease damage, especially fungal disease and general insect pest, improves yield and the quality of crop.

During plant potassium deficiency, Lao Ye and leaf margin first turn to be yellow, and then browning, shrivelled seemingly burn shape, and blade occurs brown spot or spot Block, but at leaf central part, vein, still keep green, along with the aggravation of potassium deficiency degree, whole blade becomes rufous or withered shape, Necrosis comes off, but in Different Crop, potassium deficiency symptom also has specific characteristics.But potassium is absorbed and has luxury absorption characteristic by plant, excess Potassium Fertilizer, can waste fertilizer amount, suppresses the plant absorption to calcium and magnesium, affects crop yield and quality, the most not to once Property is used in a large number, in base fertilizer potassium excess use unfavorable to plant growth on the contrary.

Agricultural develops rapidly and causes Nutrient Elements in Soil expenditure energy imbalance increasingly severe, and Chinese Academy of Sciences Nanjing soil grinds Study carefully test and the survey showed that, in the total nutrient of farmland, TAI HU AREA, nitrogen and phosphorus are in a basic balance and have a small surplus, and potassium is a large amount of Loss, year the amount of waning be 3.5 thousand grams/acre；In Suburbs of Shanghai, Zhejiang Hangjiahu Plain and Fujian, low producing region potassium element all wanes , year the amount of waning be 2-5 thousand grams/acre.Can not get for a long time due to soil potassium supplementing, so that the contradiction of potassium deficiency exposes a few days ago, south Several provinces of side potassium deficiency area accounts for 60%, therefore answers Potassium, supplements the loss of soil potassium, flat to set up higher potassium element Weighing apparatus, keeps higher soil potassium fertility, provides material base for high crop yield stable yields.

Different Crop growth characteristics also exist otherness, also differ potassium demand, even if same origin is at the potassium of different growing Demand is the most different.Tomato needs fertile more and the most resistance to fertilizer, every mu produce 6600 jin of tomatoes need to from soil absorbed nitrogen 18.6 jin, 8.6 jin of phosphorus, 24.6 jin of potassium, the ratio of three is 1:0.46:1.32.And tomato at Seedling Stage based on nitrogen, first fringe fruit open During beginning result, increasing sharply the uptake of nitrogen, phosphorus and potassium, nitrogen accounts for 50% in three elements, and potassium only accounts for 32%, but to knot Really the Sheng phase is with when starting to gather in the crops, and nitrogen only accounts for 36%, and potassium has accounted for 50%.Tomato starts from bearing fruit to need potassium to ramp, and fruit is swollen Big phase Amount of potassium absorbed accounts for needing more than the 70% of potassium amount the time of infertility, until the uptake of potassium is the most slightly reduced by the later stage of gathering.

Potato belongs to solanaceous crops, originates in mountain area, Andean, state, South America and Western Coast island, incoming China at the beginning of the 17th century.Horse The rich amyloid stem tuber of bell potato, the poorest because of factors such as cultivation area, yield level and kinds to the demand of nitrogen, phosphorus and potassium Not.Often producing 1 ton of fresh potato and need 4.4-5.5 kilogram of nitrogen, 1.8-2.2 kilogram of phosphorus, 7.9-10.2 kilogram of potassium, it is typical case happiness potassium crop. Potato absorbs potassium and is mainly used in growing of stem stalk and stem tuber, and sufficient potash fertilizer can make potato plant healthy and strong, strengthens anti- Lodging, cold-resistant and resistance against diseases, protein, starch and cellulose equal size increase, so that yield and quality are all improved. Because potato absorbs potash fertilizer amount maximum, even if rich in potassium, sufficient amount potash fertilizer to be supplemented during plantation potato in soil.

Potassium is that tobacco absorbs one of most nutrients, and potassium is different from other nutrient, and it must during being not only tobacco growing Need nutrient, it is also possible to improve tobacco leaf flammability and tobacco sucking quality, thus tobacco potassium content to be also considered cigarette quality important One of index.Potassium is relevant with tobacco leaf burning, and the tobacco leaf that potassium content is high has preferable flammability and holds firepower with glowing, tobacco leaf ignition temperature Low, advantageously reduce harmful substance and produce, improve quality and the security of tobacco product.Potassium content in tobacco leaf, especially has Machine potassium content is closely related with its tar content, and within the specific limits, organic potassium content increase can reduce tar emission, according to stone Standing erect and wait 24 tobacco bred identification and analysis results, potassium content in tobacco leaf and tar content are in extremely notable negative correlation.Want during tobacco potash fertilizer Paying special attention to the content of chlorine, chlorine affects quality of tobacco and combustibility, so potassium chloride cannot be used for tobacco, generally contains Chlorine dose does not exceeds 1%.

Potassium can promote synthesis and the accumulation of the material that carbohydrate, aromatics etc. are relevant with quality in tobacco leaf, thus affects the perfume (or spice) of flue-cured tobacco Makings, perfume quantity.During potassium element deficiency, in cigarette strain body, the low molecular compound such as the amino acid of nonprotein state nitrogen and sugar builds up, Total sugar content in tobacco reduces.After executing potassium, potassium content in tobacco leaf significantly improves, cigarette strain well-grown, and resistance strengthens, the yield of tobacco leaf And presentation quality improves, chemical analysis is coordinated, jealous improvement, alleviates miscellaneous gas, reduces excitant, thus improves smokeing panel test of tobacco leaf Quality.

Increase using of potash fertilizer and can improve potassium content in tobacco leaf to a certain extent, but in northern China cigarette district, potassium content in tobacco leaf to be made reaches To more than 2.0%, depend merely on the fertilising of extraneous root portion and produce little effect, owing to the Applied potassium being manured into soil is in dynamics of potassium in soil equilibrium process Can partly be fixed.Cheng Ming sides etc. have studied soil dry-wet and replace the impact on potassium fixation, and result shows that most soil is to executing The potash fertilizer entered has stronger crystallized ability, and soils of north China is better than south to potassium fixation ability, is 0～352mg/kg in amount of potassium applied Time, along with the increase of amount of potassium applied, potassium element is linearly risen by the amount of soil fixing, and fixed rate is also gradually increased, and soil property is not With, K fixation capacity there are differences.

The potassium content in tobacco leaf of the U.S. and Zimbabwe is many at 4-6%, and China's potassium content in tobacco leaf rarely exceeds 2%, therefore seeks to carry The approach of high potassium content of tobacco leaf, is the significant problem of China's tobacco leaf production.Tobacco is that an inverse chemistry is dense to absorption, the transport of potassium The active transdermal delivery process of degree gradient, this process is by single-minded K⁺Load albumen completes.This process needs 2 basic conditions, One is intended to the enough energy of cigarette strain offer to complete to overcome the cross-film of difference in chemical potential to absorb and transport；Two is to need enough organic acids And HCO^- ₃。

Saleratus is a kind of mineral matter sylvite, owing to it is the most chloride and sulphur, is suitable for any crop and mends potassium.In agriculture field, Saleratus is in addition to the function of potash fertilizer, and the application study as plant leaf surface bactericide in recent years also receives much concern, at moist bar Under part, it can decompose generation fungicidal substance.Saleratus is used for organic agriculture in European Union, the U.S. and other countries, necessarily In the range of control farm crop fungus disease.Potassium in saleratus is that plant needs mineral matter, bicarbonate radical to be decomposed into titanium dioxide Carbon, does not produce medicament residue and pollution to plant in whole sterilization process, is a kind of innoxious environment friendly agricultural, can apply In multi-infection powdery mildew and the plant of gray mold, application prospect is extensive.

Powdery mildew is caused by the powdery mildew of fungi, mostly is ectoparasitism, and mycelium is whole or big portion is exposed to the tender of host plant The tip, bud and leaf surface, and produce and a large amount of be made up of macroscopic white powder thing mycelium, conidiophore and conidium. Powdery mildew is widely distributed in the whole world, and dicotyledon of causing harm is especially prevalent.The main powdery mildew of China has by standing grain white powder microbial Cereal powdery mildew；The powdery mildew of the various plants such as melon, the beans that caused by Siberian cocklebur monofilament shell, crudefiber crop；By grape snag shell The uncinula necator caused；The powdery mildew of more than the 80 kind of trees such as chestnut is caused by hazel ball pin shell；The Rosa caused by rose monofilament shell The powdery mildew etc. of flowers.Powdery mildew is obligate parasite, and some kind of host range is very wide, can cause harm 157 such as erysiphe polygoni and belong to 357 kinds of plants；Some powdery mildew is divided into many different specialized forms, as standing grain powdery mildew can be divided into differences such as parasitizing wheat specially Change type, only there is a kind of powdery mildew, several powdery mildew the most also can occur, as mulberry tree can occur by hazel ball pin in general a kind of plant Powdery mildew and the powdery mildew of mulberry that caused by mulberry snag shell in the mulberry that shell causes.

With inorganic sulfur series bactericidal agents such as sulphur, lime sulfur, thiophanate methyl and Mancozebs, prevent and treat powdery mildew consumption big, base This nothing result for the treatment of, is mainly used in premorbid protection；With triazolone (triadimefon), nitrile bacterium azoles, olefin conversion, Difenoconazole Triazole germicide series with Flusilazole is representative, improves a lot than the activity of first generation inorganic sulfur bactericide, but such chemical combination Thing is single to germ action site, and germ has cross resistance to such medicament, and this compounds is irritant to plant simultaneously, uses Measure and slightly larger will suppress plant growth；Noval chemical compound with import kresoxim-methyl as representative, the mechanism of action is unique, and action site is more, , effect higher to the powdery mildew specially property controlled can reach more than 90%, but due to domestic long-term use continuously in recent years, produces The substantially resistance to the action of a drug, effect has declined, and import reagent cost is the highest simultaneously, is difficult to accept for Chinese farmers.

Being available for peasant currently without good mildew-resistance kind and select cultivation, the cost-effective rate of biological control is low, uses and also obtains Less than spread.In order to solve the practical problem of friend peasant, many scientists carry out substantial amounts of research, have also carried out big Amount screening and experimental study targetedly, achieve many achievements.As Germany BASF European Co., Ltd K-H Shi Naide etc. in The patent of invention " for improving the calcium salt of the phosphorous acid of fungicide effect " (200980122183.1) of state's application, utilizes Asia Synthos and chemical bactericide compound, and can improve the various chemical medicaments preventive effect to plant fungal disease, wherein dialogue Powder disease also has prevention effect；In Chinese invention patent Zhao Jinhua etc. " potassium dihydrogen phosphite application in preparing antibacterial foliar fertilizer " Display, replaces potassium dihydrogen phosphate as phosphorus source with potassium dihydrogen phosphite, and to the plant pathogenic fungi for examination, (bacterial strain is respectively point spore Sickle-like bacteria cucumber specialized form, Fusarium oxysporum f. sp. niveum, Gibberella zeae, melon and fruit corruption are mould, Rhizoctonia cerealis, sclerotinite And verticillium dahliae) there is inhibition, fungistatic effect is strengthened along with the increase of concentration, but does not have preventing and treating effect to powdery mildew Really.

Owing to above all factors limit, the most effectively prevent and treat the problem that powdery mildew has become peasant to have a bad headache, significantly impact agricultural Increasing both production and income.

Saleratus is as the use of bactericide, and many countries are approved the most very much, and within 2007, NZFSA is at New Zealand's " agrochemical thing MRL food standard method " following 6 MRL: the saleratus of (Table II) middle release are used for fruit and cucurbit is antifungal Agent；ATS (Ammonium thiosulphate) reduces result quantities for the operatic circle and drupe florescence；(its Main Function form comes from print to print chinaberry extract Chinaberry element)；1,4-dimethylnaphthalene is used for stoping storage potato sprouting；Hydrogen peroxide sprays for fungicide and bactericide fruit Process；Peracetic acid processes for fungicide and bactericide fruit sprinkling.The association of U.S.'s Organic Ingredients assessment at present also recommends to make With, Government Of Australia approval saleratus in 2008 uses in organic crops produces, and domestic You Shuo company exists Carrying out popularization and application, the saleratus another one important use in agricultural production at present is to extend fruit storage freshness date.

Along with EFSA's medicine former to saleratus peer review terminates, EU Committee ratifies to extend saleratus recently Useful life as bactericide.Saleratus passed through expedited review procedure as the former medicine of low-risk in European Food office in 2009 Evaluated the approval registration of Qian Huo European Union, simultaneously official demands EU member country use suitable risk-based inspection measure to protect honeybee, New register request will execution in 1 day February in 2013, this former medicine Belgium, France, Ireland and Britain pass through Registration.

Ai Lisida company releases bactericide product in Brazil's Hortitec exhibition in 2013(active ingredient is carbon Potassium hydrogen phthalate), it is the first agricultural chemicals by Brazil's " green passport " product line entrance Brazil market.Ai Lisida vegetables and fruits Market manager EduardoFigueiredo explains,It is to make Brazil's greenmarket realize a series of of sustainable development Starting product in product, sustainable development is also global trend simultaneously.

OFDC Organic certification normative annex B: " bright in crop disease and insect " control middle permission and limit the material/method used " Really regulation, saleratus is unrestricted as usage amount and the method for bactericide；European Union issues about building on January 29th, 2008 Vertical agricultural chemicals issues exemption material, the same year at the annex IV of plant source and 149/2008 regulation of the concrete limit standard of Animal by-product Issued again G/SPS/N/EEC/196/Add.10 circular on April 28, supplemented exempting material, the exemption thing in annex IV Matter has increased to 40 kinds, and inorganic compound saleratus is just among them；The U.S. is by ammonium hydrogen carbonate, sodium acid carbonate, bicarbonate 25 kinds of inorganic compounds such as potassium, phosphorous acid (bactericide) or salt are all treated as exemption material；The organic crops plantation of China Allow saleratus is also classified as by the plant protection products material used and measure the kind of unrestricted use.

The most in the world the main enterprises that saleratus develops listing as bactericide there are 3, are distributed in the U.S. and Japan, Europe is also proposed saleratus as foliage fungicide in the recent period.Bai Wo limited company of the U.S. (Bio Works Inc) releases A kind of brand isBlade face broad spectrum activity fungicide product, U.S. Helena chemical company company releases ARMICARB100 series of products, Taogossi Co.LTD company releases Kaligreen series of products, and they are used to preventing and treating The leaf portion powdery mildew of ornamental plant and other plant leaf surface fungal disease, main component is saleratus.Carbon in Milstop Potassium hydrogen phthalate accounts for 82%, and remaining is carrier and auxiliary agent；In ARMICARB100 series of products, about 83% is saleratus； In Kaligreen series of products, 85% is saleratus.Powdery mildew, downy mildew and gray mold are all had good by these bactericide Result for the treatment of, it is also possible to as preventing and treating other fungoid foliage disease.Its mechanism of action is also clearly, main by physical Effect prevents and treats pathogen, and will not develop immunity to drugs problem in theory.Plus saleratus as bactericide, whole sterilized Journey will not produce medicament residue and pollution to plant, be also used as the useful supplement of potash fertilizer, therefore many developed countries simultaneously Pay much attention to saleratus apply as the exploitation of bactericide, and domestic also rest on the laboratory research stage at present.

But, saleratus is as foliage fertilizer and the use of bactericide, owing to it is to reach drug effect by being sprayed onto plant surface, Being rather than directly into inside plants and produce the mechanism of action, the uniformity therefore sprayed is especially important.To saleratus as leaf Leaven and the formula of bactericide and preparation process for producing thereof are all that the know-how as each enterprise is protected by, for At present overseas enterprise's product of listing, also simply its principle active component being only capable of finding, other auxiliary agent and carrier do not enter Row is the openest.

The U.S. patent Nos " with the bicarbonate bactericide product of surface active ingredient " of the application such as Anthony E Winston (BICARBONATE FUNGICIDE PRODUCT WTTH A COMBINATION OF SURFACTANT IMGREDIENTS, US005415877A) in disclose the bicarbonate bactericide product containing surfactant, selected by it Surfactant containing Docusate Sodium, NaLS, amber sulfonic acid two nonyl fat sodium, sulfosuccinic acid diisobutyl ester Sodium, potassium carboxymethylcellulose, butanedioic acid sulfonic acid didecyl potassium, dodecyl sulphate potassium, magnesium stearate, xanthans, carragheen With several combinations in hexa-magnesium silicate；The U.S. patent Nos of the application such as Anthony E Winston " becomes containing inclusion compound spreader-sticker Point bicarbonate insecticide " in disclose formula and preparation method, its main adhesive has guar gum, amber monooctyl ester sulfonic acid Sodium, ultrafine dust silica gel, urea polymer, melamine resin, 2,4,5-trichlorophenoxyacetic acids, blocked gathers Ether F-127 (BASF) and magnesia；United States Patent (USP) " mixed bactericide composition " US5468715A of the application such as Amy L Joseph In disclose the formula of several bactericide, wherein the mass ratio containing saleratus is 5-35%；Anthony E Winston etc. exist U.S. patent Nos " a kind of control the method that mushroom in cultivated plant is sick " (US5432147A) disclose several containing bicarbonate The bacteriocide formula of the preventing and treating fungal disease of potassium, wherein the mass percent of saleratus is 1-50%；Anthony E Winston Carbonic acid is disclosed Deng in U.S. patent Nos " composition pesticide of control raise crop fungal disease " (US005518987A) Hydrogen potassium and kobam (Terrazole) compound has effect to preventing and treating pythium spp.Also disclose that in invention simultaneously and utilize 37% carbonic acid Hydrogen potassium, 14% potassium carbonate, 34% urea, 9% aerosol OT and 6% Sodium Caprylate compound, and infect bending lawn pythium spp Control that there is Synergistic fungicidal active.

Tea Saponin has another name called TS, since green hill time Lang Shouci in 1931 isolates Tea Saponin, through the brill with great concentration of several generations Grinding and put into practice, the application of Tea Saponin achieves major progress.It is through oil expression from the seed of plant of theaceae such as tea seed cake, tealeaves After tea cake in extract plant insecticide, belong to pentacyclic triterpenoid, its sterling is colorless prismatic crystal, has moisture absorption Property, bitter is pungent, and molecular formula is C₅₇H₉₀O₂₆, molecular weight 1191.31, fusing point 223-224 DEG C, soluble in water and alcohols, have The organic solvents such as machine acids, insoluble in ether, petroleum ether and benzene class organic solvent.

Tea Saponin is vegetable source natural compound, is excellent nonionic surface active agent.Tea Saponin is main on pesticide industry Be applied to wettable powder as wetting agent, the auxiliary agent of water soluble pesticide, plant growth regulator etc., its have nontoxic, can be from The features such as dynamic degraded, are one the most promising environmental protection type agricultural chemical auxiliary agents, and Tea Saponin is widely used in paclobutrazol, Mobucin, second The wetting agent of the agricultural chemicals such as phosphorus aluminium and tricyclazole.Tea Saponin has been largely used on herbicide glyphosate and insecticide dimehypo the most, special It is not used on glyphosate, has given full play to the premium properties of glyphosate, improve its adhesive force on plant and hygroscopicity, carry The penetration of high liquid, and due to the good biological activity of Tea Saponin, moreover it is possible to improve the biologically active of glyphosate.

The Zhong Guohua of Agricultural University Of South China etc. are at Chinese invention patent " containing the citrus corrosion protection antistaling agent of Tea Saponin " (200710030375.2) describe in and account for 2.0% Tea Saponin by weight and account for the conventional citrus corrosion protection guarantor of 0.5% by weight Fresh bactericide imazalil or the former medicine of Prochloraz, surplus is auxiliary agent, is re-dubbed missible oil or wettable powder or microemulsion, can be significantly Improve drug effect, reduce use cost.

The Hu Meiying of Agricultural University Of South China etc. are Chinese invention patent " bactericidal composition that metalaxyl and Tea Saponin are compounding and application " (200910038344.0) describe in account for 0.01-80% Tea Saponin by weight and account for the metalaxyl of 0.5-80% by weight former Medicine, surplus is auxiliary agent, is re-dubbed missible oil or wettable powder or microemulsion, has notable synergistic effect, and bactericidal activity compares single dose It is remarkably reinforced, multiple diseases is played and certain double controls effect；

The Hu Meiying of Agricultural University Of South China etc. are at Chinese invention patent " bactericidal composition that Mancozeb and Tea Saponin are compounding and should With " (200910038346.X) describes account for 0.01-80% Tea Saponin by weight and account for the Dai Sen of 0.5-80% by weight The former medicine of MnZn, surplus is auxiliary agent, is re-dubbed missible oil or wettable powder or microemulsion, has notable synergistic effect, bactericidal activity It is remarkably reinforced than single dose, multiple diseases is played and certain double controls effect；

The Hu Meiying of Agricultural University Of South China etc. are at Chinese invention patent " Tea Saponin and the Pesticidal combination of pleocidin " (200910214268.4) Mancozeb describe in and account for 0.1-50% Tea Saponin by weight, accounting for 0.01-30% by weight is former Medicine and account for the auxiliary agent of 20-95% by weight and compound, can be used for the preventing and treating of common insect pests in agricultural production；

The Hu Meiying of Agricultural University Of South China etc. are at Chinese invention patent " Tea Saponin and the Pesticidal combination of rotenone " (200910214378.0) describe in account for by weight 0.1-50% Tea Saponin, account for by weight 0.01-30% rotenone and by Weight meter accounts for the auxiliary agent of 20-95% and compounds, and has significant synergies, and insecticidal activity is remarkably reinforced than single dose, can be used for Preventing and treating prodenia litura, beet armyworm, diamondback moth, radish aphid or planthopper；

The Shen Lirong of Zhejiang University and Zhejiang Chang Fa oil and foodstuffs Co., Ltd etc. at Chinese invention patent " with Tea Saponin as synergist Compound imidacloprid suspoemulsion with surfactant " (201010151774.6) describe the former medicine of imidacloprid and Tea Saponin by Effective content mass ratio is that 100:10 carries out being configured to aqueous suspension agent, has the most degradable, environmentally safe, And there is synergistic effect；

The Zhang Xiangjie of Zhejiang Choisun Tea Development Co., Ltd. etc. are Chinese invention patent " a kind of plant prepared by natural tea saponin powder Foliage fertilizer " (201210543666.2) describe be by weight percentage 14% Tea Saponin pulvis, the potassium citrate of 48%, The industrial sulphuric acid zinc of 37% and the ammonium molybdate of 1% carry out being configured to foliage fertilizer, this foliage fertilizer has that dissolution dispersity is good, low cost, With strong points and that application is effective advantage, and this foliage fertilizer is solid dosage forms, and packed and transported is convenient, and this foliage fertilizer is used for water Rice, the average test result of 2 years shows, paddy rice averagely increases production 12.1%.

Toxicity of pesticide and environment friendly are increasingly paid attention to by people, select the novel agrochemical of high-efficiency low-toxicity low-residual to become trend. Mixed and compounding is to extend the service life of old kind agricultural chemicals, the alleviation resistance to the action of a drug of target organisms, expanding prevention spectrum, raising medicament Preventive effect and the Main Means of environmental safety, delay the pathogen resistance to the action of a drug by different mechanism of action composite reagents, can carry simultaneously High pharmacy control efficacy.Saleratus, the application of Tea Saponin have many successful experiences, but saleratus and two kinds of medicaments of Tea Saponin are carried out Compounding up to the present it is not yet reported that.

Phosphorous acid and alkali metal salt and ester thereof have the effect improving bactericide inhibition, in U.S. patent Nos US4075324 Describing the Fungicidal composition of phosphorous acid or its salt, said composition has a general Fungicidally active of phosphorous acid hydrogen salt, and it Only have when combining with other chemical fungicides and superpose activity；WO2002/05650 discloses and comprises at least one amino acid The derivative of the phosphorous acid of the machine compound combination formed with at least one algae extract and the Fungicidal formulations of salt； WO2004/047540 describes potassium phosphite and some synthesis of antifungal agents has the strongest synergistic function when combining； WO2007/017220 describes the salt of phosphorous acid and does not has or seldom have Fungicidally active and the compound of intrinsic light catalytic performance Synergistic mixture.

Saleratus is owing to having a certain distance than still, the most individually to plant epiphyte and prevention effect with a lot of chemical agents Carry out applying or fewer as sterilization.The bactericide saleratus of list marketing at present is the most all compounding containing saleratus Formulation, and main or saleratus and chemical agent compound, also having part is that saleratus and other inorganic salts are (such as carbon Acid hydrogen sodium, sulfur-containing inorganic salt, inorganic phosphor-contained salt and cupric inorganic salts) compounding, but so far there are no about saleratus, Tea Saponin With the case that phosphorous acid hydrogen salt carries out compound synergic.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of crop with bactericidal action and mends potassium composition and preparation method thereof and use On the way.

In order to solve above-mentioned technical problem, the present invention provides a kind of crop with bactericidal action to mend potassium composition, said composition by The one-tenth of following weight content is grouped into:

Described saleratus, Tea Saponin and phosphorous acid hydrogen salt constitute the active sterilization component of composition.

Remarks illustrate: under optimum condition, saleratus is 75%, and Tea Saponin is 15%, and phosphorous acid hydrogen salt is 8%, and synergy assists Agent is surplus.

The crop with bactericidal action as the present invention mends the improvement of potassium composition: potentiating adjuvant therefore includes mineral salt anticaking agent And synergist；Described mineral salt anticaking agent is formed (weight ratio that both are 1:0.9～1.1) by light magnesium oxide and White Carbon black, Described synergist is nano-titanium oxide；

Or potentiating adjuvant therefore is silica.

The crop with bactericidal action as the present invention mends the further improvement of potassium composition: said composition is by following weight content One-tenth be grouped into:

The crop with bactericidal action as the present invention mends the further improvement of potassium composition: described phosphorous acid hydrogen salt is phosphorous acid Potassium dihydrogen.

The crop with bactericidal action as the present invention mends the further improvement of potassium composition: described White Carbon black is the white carbon of vapor phase method Black.

The present invention provides above-mentioned crop the most simultaneously and mends the purposes of potassium composition: at least one purposes following:

For preventing and treating strawberry or Powdery Mildew in Tobacco, Alternaria alternate or common mosaic；

Potassium foliage fertilizer is mended as tobacco；

Promoting that cigarette strain plant height stem girth is grown, blade thickens, and slows down the potassium lost of tobacco bottom leaf.

The present invention provides above-mentioned crop the most simultaneously and mends the preparation method of potassium composition, comprises the steps:

1) it is crushed to by 80 mesh sieves after, saleratus and phosphorous acid hydrogen salt being mixed；

2) it is crushed to by 80 mesh sieves after, Tea Saponin and potentiating adjuvant therefore being mixed；

3), by step 1) gains and step 2) gains proportionally mix, and injection is pulverized, and must have sterilization and make Crop mend potassium composition.

Crop as the present invention mends the improvement of preparation method of potassium composition: injection pulverizing is: expulsion pressure is 12MPa, time Between 30 minutes.

After carrying out in mass ratio compounding according to the crop benefit potassium composition with bactericidal action of the present invention, can be according to conventional work Skill operates: adds different filler, synergist and other auxiliary materials on demand, is processed into acceptable formulation, Such as soluble powder.

The composition that the present invention provides contains this 3 effective constituents of Tea Saponin, saleratus and phosphorous acid hydrogen salt, compounding rear conduct The mechanism of action of the medicament of active ingredient effectively combines, and especially Tea Saponin is while playing its bactericidal action, to carbonic acid Hydrogen potassium and phosphorous acid hydrogen salt play significant synergistic effect.

Composition of the present invention can be used for the preventing and treating of Common mycotic disease in agricultural production, has the function of pest control concurrently, And wherein do not contain chemical synthetic pesticide, can be new as the highly effective pesticide of organic agriculture, pollution-free food and nuisanceless fruits and vegetables production Kind.

Composition of the present invention is due to containing the indispensable element needed for the plant growths such as potassium, phosphorus, magnesium, while sterilization also Serve as effect of foliage fertilizer, significantly reduce the use cost of peasant.

Composition soluble powder dissolubility of the present invention strong, good fluidity prevented from caking good, dispersed, sprays rear blade face Adhesion property is excellent, without just gathering during personal distance after using, and the risk of non agricultural chemical residuum.

Composition provided by the present invention be mainly used for preventing and treating strawberry and Powdery Mildew in Tobacco, Alternaria alternate, the most applicable Use in resistance to the action of a drug region.

Composition provided by the present invention mends potassium foliage fertilizer as tobacco, promotes that cigarette strain plant height stem girth is grown, and blade thickens, And slow down the potassium lost of tobacco bottom leaf.

To there is the medicament of different mechanism of action, especially there is negative mutual drug-fast medicament and carry out compounding being by the resistance to the action of a drug and controlling The important measures managed and delay the anti-medicine of medicament to produce.Composition provided by the present invention has the advantage that

(1) medicament of different mechanism of action is compounded by said composition, for avoiding or delay the resistance to the action of a drug, extending the old of low cost Kind Pesticide use life-span and raising effect of chemical control are significant；

(2) Tea Saponin is botanical fungicide, and saleratus and phosphorous acid hydrogen salt are mineral substance bactericide, adjuvant used and synergy Agent is also inorganic mineral salt, and the combined bactericide after they are compounding has high-efficiency low-toxicity, environment amenable advantage, meets state The requirement of family's pollution-free food production, is suitable for the fungal disease of preventing and treating vegetable at protected field melon and fruit and ornamental plant etc., application prospect ten Divide wide.

(3) synergy provided by the present invention obvious composition environmental protection compound preparation is soluble powder, with emulsifiable concentrate, aqueous emulsion Or suspending agent etc. compares, save substantial amounts of organic solvent, environmentally safe, production can be greatly improved simultaneously, store and transport and make Security.

(4) saleratus is mainly solved and problems that the single use of potassium hydrogen phosphite is caused: as saleratus individually makes Low by drug effect and effect broad spectrum activity is poor, dispersiveness and adhesion property are poor, and product easily lumps and the problem such as shelf life is short.

The crop with bactericidal action of the present invention mends potassium composition, and actually used method and consumption be: at the beginning of disease occurs Phase executes medicine for the first time, uses once every 7 days afterwards, general medication 3-5 time.Composition is diluted to when using concentration is 5-10g/l, mu amount of application is 50 kilograms (aqueous solution after dilution), when using should at cloudy day or fine day, if after dispenser 1 hour In just rainy should carry out benefit and execute, must not be used in mixed way with other highly acid medicament when using.

Above-mentioned disease refers mainly to strawberry and Powdery Mildew in Tobacco, Alternaria alternate and common mosaic etc..

In sum, the composition of the present invention comprises saleratus, Tea Saponin, phosphorous acid hydrogen salt and potentiating adjuvant therefore.This group Compound has obvious synergistic effect, can solve what above-mentioned medicament (saleratus, Tea Saponin, phosphorous acid hydrogen salt) was used alone Weak point, decreases spraying times, minimizing formulation rate and elimination saleratus and is administered alone and plant is produced poisoning and effect The shortcoming of weak effect, is particularly suitable for the plantation of organic crops.These several medicaments of Tea Saponin, saleratus and phosphorous acid hydrogen salt it Between there is no obvious cross resistance.

In sum, should be efficient, safety, economic 3 requirements having both to meet good product, inventor passes through The most deep market survey, has carried out a large amount of screening and experimental study targetedly, has finally succeeded in developing strawberry and cigarette Grass powdery mildew, Alternaria alternate have and the most highly active comprise Tea Saponin, saleratus, phosphorous acid hydrogen salt and potentiating adjuvant therefore Have bactericidal action crop mend potassium composition.The sterilization mechanism of said composition is different from conventional chemical pesticide, in sterilization Meanwhile, insect pest of the plant is also had certain preventing and treating, be more preferably can be administered as the benefit potassium foliage fertilizer of crop.

Accompanying drawing explanation

Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further detail.

Fig. 1 is the production technological process of the crop benefit potassium composition with bactericidal action of the present invention.

Detailed description of the invention

Raw material of the present invention:

Saleratus, content 99%, Zhejiang Dayang Biotech Group Co., Ltd., commercially available；

Potassium dihydrogen phosphite, high-class product, Shanghai Tong Yuan Chemical Co., Ltd., commercially available；

Tea Saponin, content 91.08%, Hunan Hanqing Biological Co., Ltd., commercially available；

Light magnesium oxide, AR, Nanjing chemical reagent, commercially available；

Fumed silica, Zhejiang Wenhua chemical industry, commercially available；

Nano-titanium oxide (anatase titanium dioxide), Zhejiang Dayang Biotech Group Co., Ltd., commercially available；

Embodiment 1, test saleratus, Tea Saponin, potassium dihydrogen phosphite and the compound drug virulence to strawberry powdery mildew thereof Coefficient

1. strains tested:

Strawberry powdery mildew (Sphaerotheca machlaris), this bacterial classification is taught by biotechnology research institute of Zhejiang University Zhang Chulong Offer is provided.

2. reagent agent:

Table 1 complex preparation formula and composition specification

Remarks illustrate:

Above-mentioned chemicals treatment concentration refers to the content of activity sterilization component (including saleratus, Tea Saponin and potassium dihydrogen phosphite), Do not include silica.

3. test method

Spore suspension spray inoculation method is used to measure the biologically active of medicament: to take the Strawberry Leaves covering with Powdery Mildew, with containing 0.1% tween sterilized water is washed gently and is taken leaf back Fresh spores, uses double-layer sterile filtered through gauze, makes 100,000/ml of spore concentration The suspension of left and right is standby.Choose the identical strawberry of growing way as material to be tested, reagent agent and comparison medicament are configured to 4000,2000,1000,500,250 and the liquid of 125mg/l concentration, carry out spraying treatment (with blade face positive and negative all drench for Only), often processing 10 basins, if 3 repetitions, after leaf natural is dry, (sprayer model is to carry out spray inoculation pathogen 1/8HP (0.095)-118, atomisation pressure is 0.15MPa), during inoculum concentration, every strain 5ml (leave dual sides is all sprayed onto position), connects Vegetable material after Zhong dries naturally, moves to relative humidity >=75%, the growth cabinet of 30 DEG C, carries out spraying medicine, 14d after 3d again Scab sum and the lesion area of each process investigated and recorded, disease index and prevention effect calculated.

Pilot survey and grade scale:

Stage division accounts for the percentage of whole blade area with every leaf spot lesion area on compound leaf, often repeats to look into 30 representativenesses multiple Leaf.

0 grade: without scab

1 grade: lesion area accounts for less than the 5% of one-piece blade area；

3 grades: lesion area accounts for the 6-15% of one-piece blade area；

5 grades: lesion area accounts for the 16-50% of one-piece blade area；

7 grades: lesion area accounts for the 26-35% of one-piece blade area；

9 grades: lesion area accounts for more than the 51% of one-piece blade area；

According to each fungicidal evaluation result, use dosage logarithm-bacteriostasis rate machine value method to calculate and try to achieve 503nhibiting concentration, utilize Y.P.Sun With the co-toxicity coefficient that E.R.Johnson method calculates built agent, and evaluate built agent synergistic effect according to co-toxicity coefficient size, and Determine optimum proportioning.

Toxicity index (TI)=standard antiseptic agent EC50/ reagent agent EC50 × 100；

The actual toxicity index of complex preparation (ATI)=standard agent EC50/ mixture EC50；

TI × the PB of TI × PA+ single dose B of complex preparation theory toxicity index (TTI)=single dose A, (PA and PB is mixed respectively Single dose A and the percentage composition of single dose B active ingredient in agent)；

Theoretical toxicity index TTI of the actual toxicity index ATI/ mixture of complex preparation co-toxicity coefficient (CTC)=mixture；

Synergistic effect judges: be synergistic effect during CTC > 120；CTC < is antagonism when 80；During 80≤CTC≤120 it is Summation action.

The virulence coefficient test result of table 2 complex preparation

From the testing and analysis data of table 2 it can be seen that saleratus, Tea Saponin and potassium dihydrogen phosphite are individually selected to test Strawberry powdery mildew also have certain bacteriostatic activity, but fungistatic effect is the most weak, and EC50 is respectively 2176.55,1875.44 And 2413.37mg/L, but complex preparation bacteriostatic activity is substantially used alone than saleratus, Tea Saponin and potassium dihydrogen phosphite Being eager to excel, and do not have mutual negative interaction between saleratus, Tea Saponin and potassium dihydrogen phosphite, tested proportioning is illustrated as Synergy, the particularly synergy of test recipe B become apparent from, and co-toxicity coefficient (CTC) reaches 243.26, considerably beyond the increasing of 120 Effect standard figures, and ratio positive control medicineBacteriostatic activity strong.

Contrast experiment 1, substitute the test recipe B in above-described embodiment 1 with the composition of following formula, according to embodiment 1 institute The mode of stating detects, and acquired results is as shown in the table.

Remarks illustrate: " activity sterilization component " sum in formula as below is all with 98% shown in " test recipe B ".

Contrast experiment's data of the similar formula of table 3

The field test of embodiment 2, complex preparation preventing and treating powdery mildew of strawberry

1 reagent agent:

Preferably compound drug: saleratus 75%, Tea Saponin 15%, potassium dihydrogen phosphite 8%, light magnesium oxide 1%, white carbon Black 0.9% and nano-titanium oxide 0.1% (remarks illustrate: test below is all carried out with " preferably compound drug ").

2 for studying thing:

Test site is in bridge strawberry base, Yangchuan village, Jiande City, Zhejiang Province, and kind is " red cheek ".Physical features is higher, the soil is porous in selection, Fertile soil, the convenient and draughty place of irrigation and drainage are experimental plot.Test alley height 20-30cm, ridge bottom width 70cm, Face, ridge 50cm, furrow width 25cm, whole furrow build booth after making ridge, (total nutrient content is 46% to use sufficient base manure before transplanting Nitrogen-phosphorus-potassium compound fertilizer 70 kgs/acre).In transplant planting on September 8, during field planting, line-spacing is 35-40cm, cave away from 25-30cm, Imposed the nitrogen-phosphorus-potassium compound fertilizer 50 kgs/acre that total nutrient content is 46% on October 18.December 8 started to gather, next year 4 Month 12 end of day.

3 test methods and investigation:

This test uses method of comparison arrangement, in triplicate, plot area 20m².Test spray pharmacy concentration be respectively 5g/l (low dosage), 7.5g/l (middle dosage) and 10g/l (high dose)；Positive control medicament is, when using, concentration is 7.5g/l, simultaneously If blank.Carried out dispenser for the first time on February 5, carried out second time dispenser on February 15, carried out third time on February 25 and execute Medicine, carried out the 4th dispenser on March 8, carried out the 5th dispenser on March 18, carried out the 6th dispenser on March 28, every time The state of an illness and poisoning situation is investigated before dispenser.Last dispenser terminates the latter 7 days investigation state of an illness, simultaneously to plant height, fruit product Matter (soluble solid content) and per mu yield carry out investigation statistics, use diagonal five point sampling, every some investigation 3 Strain, whole strain blade all carries out investigating classification.

Formulation rate is: 50 liters every mu (liquid medicine after dilution), each amount of application is identical.

Pilot survey and grade scale:

Stage division accounts for the percentage of whole blade area with every leaf spot lesion area:

0 grade: without scab

1 grade: lesion area accounts for less than the 5% of one-piece blade area；

3 grades: lesion area accounts for the 6-15% of one-piece blade area；

5 grades: lesion area accounts for the 16-50% of one-piece blade area；

7 grades: lesion area accounts for the 26-35% of one-piece blade area；

9 grades: lesion area accounts for more than the 51% of one-piece blade area；

From field control effectiveness test result it can be seen that preferred for this invention go out compound drug to preventing and treating powdery mildew of strawberry there is effect, After six dispensers, the preventive effect of low, medium and high dosage is respectively 53.5%, 67.2% and 73.6%, more right than positive under identical dosage Prevention effect according to medicine Milstop is good.

Preferred for this invention go out the whole dispenser of compound drug during produce without poisoning, use rear Strawberry Leaves color more right than blank According to greener, plant height improves 6-10% relatively, and disease resistance significantly improves, and in the mould fruit of grass after harvesting, soluble solid contains Measure and improve 5.8% than blank.

Table 4 sprays the impact after different agents on experimental field strawberry

Table 5 prevents and treats powdery mildew of strawberry investigation result after spraying different agents

Embodiment 3, complex preparation mend the field test of potassium foliage fertilizer as tobacco

1 reagent agent:

Preferably compound drug: saleratus 75%, Tea Saponin 15%, potassium dihydrogen phosphite 8%, light magnesium oxide 1%, white carbon Black 0.9% and nano-titanium oxide 0.1%.

Comparison medicine: potassium dihydrogen phosphate.

2 for studying thing and address:

Flue-cured tobacco cultivars k326, tests address: Xing Shan demonstration area, Hubei Province is positioned at white mausoleum, flint ridge, Huang Liang town growing area, height above sea level 1000 Rice, average annual temperature 13.3 DEG C, about 190 days frost-free period.The basic physicochemical character in experimental plot is: pH value 6.55, the soil organism Content 2.55%, available nitrogen 130mg/kg, rapid available phosphorus 14.5mg/kg, available potassium 194mg/kg, chlorion 5.8mg/kg.

3 experimental design:

3 process, RANDOMIZED BLOCK DESIGN are set up in test separately, repeat for 3 times, totally 9 communities.Community be shaped as rectangle, little District's area 20 square metres, every community plants cigarette 30 strain, arranges protection row between community.Field operation is by local sound tobacco growth Technical specification is carried out, and mu executes purity nitrogen 8 kilograms, N:P₂O₅:K₂The ratio of O is 1:1.2:2.4.In order to ensure experiment condition uniformity, The fertilising of each experimental plot, sow, pour water, middle weeding, bind, prune, press down the operations such as bud and all completed in 1 day.

4 contents of the test:

Table 6 complex preparation mends the field experimental design of potassium foliage fertilizer as tobacco

Note: every mu is used medicine is 50 liters (aqueous solution of medicament after dilution).In addition to prosperous long-term fertilization 2 times, roll into a ball a phase, prosperous length Early stage is all applied fertilizer once.

The mensuration of 4.1 experimental field different growing tobacco agronomy character:

After the flue-cured tobacco transplanting of experimental plot 30 days, 45 days, Topping Stage and adopt roasting before observe each process tobacco agronomy character of record, agriculture Skill property determination is carried out according to " YC/T142-2010 tobacco economical character investigation measurement way " standard, and main testing index is stem Height, stem girth and leaf-area coefficient.

Table 7 field test respectively processes economical character measurement result

From table 7 field test economical character test result it can be seen that preferred for this invention go out compound drug can significantly improve Cigarette kind economical character.Wherein leaf-area coefficient processes raising 9.46% than blank, processes also than positive control potassium dihydrogen phosphate Improving 4.98%, bottom leaf is the greenest more abundant, illustrates that using " mending potassium composition " of the present invention can promote cigarette strain plant height Stem girth is grown, and blade increases, and slows down the nutrition leak of tobacco bottom leaf.

4.2 investigation improving tobacco disease resistance performance:

Tobacco is adopted the roasting phase and carries out testing each process field natural occurrence condition survey, investigation method with reference to " tobacco disease insect pest classification and Investigation method " (GB/T23222).From investigation result it can be seen that use " mending potassium composition " of the present invention and can show Write and improve tobacco disease resistance ability, reduce powdery mildew, rust and the incidence of disease of common mosaic.Powdery Mildew in Tobacco after process, red Star is sick and the common mosaic incidence of disease is 1.2,0.6 and 1.3 (%), and concrete condition is as described in Table 8.

The impact on Tobacco resistance of table 8 different disposal

The qualitative effects investigation of 4.3 pairs of tobacco tobacco leaves:

The tobacco leaf that experimental plot respectively processes list respectively adopt roasting, classification meter produce, study the different disposal impact on quality of tobacco, inspection Ce Ge community tobacco leaf weight per leaf, and each test process tobacco leaf is carried out total Soluble Sugar, reduced sugar, nicotine, total nitrogen, phosphorus and potassium The analysis of the indexs such as content.

Table 9 different disposal is on the impact of medium grade cigarette ratio on flue-cured tobacco

From table 9 investigation result it can be seen that use during " mend potassium composition " of the present invention foliage fertilizer can improve flue-cured tobacco Deng cigarette ratio, comparing with blank, the ratio of better-than-average tobacco leaf can improve 9%, remarkable benefit.

Remarks illustrate: the judgement of " medium grade cigarette " of above-mentioned quality of tobacco is based on " People's Republic of China's flue-cured tobacco national standard " (GB/T2635-92) carry out.

The impact on cured tobacco leaf chemical quality of table 10 different disposal

From the test result of table 10 it can be seen that use " mending potassium composition " of the present invention foliage fertilizer, can somewhat improve cigarette Leaf total reducing sugar and the content of reduced sugar；Total nitrogen and nicotine content have attenuating trend, but otherness is the most notable；Ligroin extraction and potassium Content significantly improves, potassium content upper, neutralize in the blade of lower portion and be more evenly distributed, the loss of potassium in sheet in bottom can be reduced, Significantly reducing the ratio of inferior tobacco leaf, quality of tobacco is more preferable.

Contrast experiment 2,

Following 4 comparative formula are set:

Comparative formula I: saleratus 81.7%, Tea Saponin 16.3%, light magnesium oxide 1%, White Carbon black 0.9% and nano oxidized Titanium 0.1%；

Comparative formula II: saleratus 88.6%, potassium dihydrogen phosphite 9.4, light magnesium oxide 1%, White Carbon black 0.9% and nanometer Titanium oxide 0.1%；

Comparative formula III: saleratus 75%, Tea Saponin 15% and potassium dihydrogen phosphate 8%, light magnesium oxide 1%, White Carbon black 0.9% With nano-titanium oxide 0.1%)；

Comparative formula IV: saleratus 75%, Docusate Sodium 15% and potassium dihydrogen phosphite 8%, light magnesium oxide 1%, White Carbon black 0.9% and nano-titanium oxide 0.1%.

By above-mentioned comparative formula I, comparative formula II, comparative formula III, the comparative formula IV, " test in alternate embodiment 3 Medicine ", i.e. detect according to method described in embodiment 3.Result is as follows:

The impact on Tobacco resistance of table 11, different disposal

Table 12, contrast process the impact of medium grade cigarette ratio on flue-cured tobacco

From the point of view of contrast experiment, trial drug of the present invention is effective, and compounding effect is obvious.

Embodiment 4, preventing and treating tobacco diseases contrast experiment

Mend discovery in the field test of potassium foliage fertilizer at embodiment 3 complex preparation as tobacco, use " benefit potassium of the present invention Composition " it is remarkably improved tobacco disease resistance ability, reduce powdery mildew, rust and the incidence of disease of common mosaic, cigarette after process Grass powdery mildew, rust and the common mosaic incidence of disease are 1.2%, 0.6% and 1.3%, this be we originally it is not expected that Result, can or can not be that saleratus, Tea Saponin, potassium dihydrogen phosphite natively to Powdery Mildew in Tobacco, rust and are commonly spent Leaf disease just has good preventive effect？We conducted contrast experiment.

Experimental technique, with embodiment 3, substitutes with saleratus, Tea Saponin, potassium dihydrogen phosphite and positive control medicine Milstop " trial drug " in embodiment 3, i.e. detects according to method described in embodiment 3.

Table 13 contrast processes the impact on Tobacco resistance

Test data of experiment table 13 is processed it can be seen that saleratus, Tea Saponin, potassium dihydrogen phosphite are to tobacco white powder from contrast The prevention effect of disease, rust and common mosaic is unsatisfactory, and the prevention effect of benefit potassium composition of the present invention is obvious, Effect than positive control medicine Milstop is more preferable.

Embodiment 5: crop is mended potassium composition soluble powder and prepares

It is of the present invention that to comprise Tea Saponin, saleratus, phosphorous acid hydrogen salt and potentiating adjuvant therefore Bactericidal composite composition formula as follows (being mass percent): saleratus 75%, Tea Saponin 15%, potassium dihydrogen phosphite 8%, light magnesium oxide 1%, white Carbon black 0.9% and nano-titanium oxide 0.1%.

Crop benefit potassium composition soluble powder preparation method contrast experiment:

Control methods I: according to the requirement of formula, weigh saleratus 75 kilograms, Tea Saponin 15 kilograms, potassium dihydrogen phosphite 8 kilograms, light magnesium oxide 1 kilogram, White Carbon black 0.9 kilogram and nano-titanium oxide 0.1 kilogram, mix；

Control methods II: according to the requirement of formula, weigh saleratus 75 kilograms, Tea Saponin 15 kilograms, potassium dihydrogen phosphite 8 kilograms, light magnesium oxide 1 kilogram, White Carbon black 0.9 kilogram and nano-titanium oxide 0.1 kilogram, mix, use pulverizer powder It is broken to full by 80 mesh sieves；

Control methods III: according to the requirement of formula, weigh saleratus 75 kilograms, Tea Saponin 15 kilograms, potassium dihydrogen phosphite 8 kilograms, light magnesium oxide 1 kilogram, White Carbon black 0.9 kilogram and nano-titanium oxide 0.1 kilogram, mix, use pulverizer powder It is broken to full by 80 mesh sieves, is pulverized 30 minutes by jet-impingement the most again；

Control methods IV: according to the requirement of formula, weigh saleratus 75 kilograms, Tea Saponin 15 kilograms, phosphorous acid two respectively 8 kilograms of hydrogen potassium, light magnesium oxide 1 kilogram, White Carbon black 0.9 kilogram and nano-titanium oxide 0.1 kilogram.By 75 kilograms of bicarbonates It is crushed to full by 80 mesh sieves after potassium and 8 kilograms of phosphorous acid hydrogen salt mixings；15 kilograms of Tea Saponins, 1 kilogram of light magnesium oxide, 0.9 It is crushed to full by 80 mesh sieves after kilogram White Carbon black and 0.1 kilogram of nano-titanium oxide mixing；Then they are mixed, pass through Jet-impingement is pulverized 30 minutes.

Remarks illustrate: the corresponding process parameters that jet-impingement is pulverized is: expulsion pressure is 12MPa, 30 minutes time.

Testing above-mentioned experiment soluble powder sample, index is mobility, dissolubility and dispersiveness.

100 grams of test samples full by the funnel required time that nozzle diameter is 12mm to evaluate mobility, time the longest representative Mobility is the poorest.

1 gram of sample puts into the CL time in 50 grams of water and evaluates solubility property, and the time is the longest, and to represent dissolubility the poorest.

Dispersiveness, by visualization, sees whether sample lumps.

The soluble powder quantitative measurement of table 14 different processing methods

Project	Mobile performance	Solubility property	Dispersive property
				Control methods I	143 seconds	326 seconds	Caking is serious
Control methods II	121 seconds	138 seconds	Part caking
				Control methods III	96 seconds	48 seconds	Good dispersion, does not lumps
Control methods IV	76 seconds	36 seconds	Good dispersion, does not lumps
				Comparison medicine Milstop	124 seconds	149 seconds	Part caking

Finally, in addition it is also necessary to be only several specific embodiments of the present invention it is noted that listed above.Obviously, the present invention is not It is limited to above example, it is also possible to have many deformation.Those of ordinary skill in the art directly can lead from present disclosure The all deformation gone out or associate, are all considered as protection scope of the present invention.

Claims (7)

1. the crop with bactericidal action mends potassium composition, it is characterized in that: said composition is grouped into by the one-tenth of following weight content:

Described saleratus, Tea Saponin and phosphorous acid hydrogen salt constitute the active sterilization component of composition；

Described potentiating adjuvant therefore includes mineral salt anticaking agent and synergist；Described mineral salt anticaking agent is by light magnesium oxide and white Carbon black forms, and described synergist is nano-titanium oxide；

Or potentiating adjuvant therefore is silica.

The crop with bactericidal action the most according to claim 1 mends potassium composition, it is characterized in that: said composition is by following The one-tenth of weight content is grouped into:

The crop with bactericidal action the most according to claim 1 and 2 mends potassium composition, it is characterized in that: described phosphorous Acid hydrogen salt is potassium dihydrogen phosphite.

The crop with bactericidal action the most according to claim 3 mends potassium composition, it is characterized in that: described White Carbon black is gas Phase method White Carbon black.

5. crop as described in claim 1-4 is arbitrary mends the purposes of potassium composition, it is characterized in that: at least one purposes following:

For preventing and treating strawberry or Powdery Mildew in Tobacco, Alternaria alternate or common mosaic；

Potassium foliage fertilizer is mended as tobacco；

Promoting that cigarette strain plant height stem girth is grown, blade thickens, and slows down the potassium lost of tobacco bottom leaf.

6. the crop as described in claim 1-4 is arbitrary mends the preparation method of potassium composition, it is characterized in that comprising the steps:

1) it is crushed to by 80 mesh sieves after, saleratus and phosphorous acid hydrogen salt being mixed；

2) it is crushed to by 80 mesh sieves after, Tea Saponin and potentiating adjuvant therefore being mixed；

3), by step 1) gains and step 2) gains proportionally mix, and injection is pulverized, and must have sterilization and make Crop mend potassium composition.

Crop the most according to claim 6 mends the preparation method of potassium composition, it is characterized in that: described injection pulverizing is: spray Injection pressure is 12MPa, 30 minutes time.