CN104761411A - Garlic fertilizer by tower-type melt granulation and preparation method hereof - Google Patents

Abstract

The invention discloses a garlic fertilizer by tower-type melt granulation, which belongs to the technical field of agricultural fertilizer. The fertilizer is composed of urea, industrial monoammonium phosphate, potassium sulfate, anhydrous magnesium sulfate, boric acid, EDTA chelated zinc, EDTA chelated iron, EDTA chelated manganese, EDTA chelated copper, ammonium heptamolybdate, polyglutamic acid and potassum fulvic acid. The fertilizer contains macroelement nitrogen, phosphor and potassium which are necessary to crop growth, and contains medium trace element sulfur, magnesium, iron, zinc, manganese, copper and boron which are easily absorbed by crops. The added polyglutamic acid and potassum fulvic acid can increase the anti-adversity performances such as cold resistance, drought resistance, lodging resistance and anti-insect disease of the garlic, tower-type melt granulation is employed, so that the product has the advantages of large compressive strength and difficult soil hardening, and is environmentally friendly.

Description

A kind of Tower-type melt granulation garlic special fertilizer and preparation method thereof

Technical field

The invention belongs to technical field of special fertilizer of crop formula, be specifically related to a kind of Tower-type melt granulation garlic special fertilizer.

Background technology

Garlic is a kind of autumn sowing summer crops in China, and happiness is wet, happiness is fertile, not drought-enduring, avoids accumulated water.According to Food and Argriculture OrganizationFAO's statistics, Chinese garlic outlet accounts for 70% of world's garlic volume of trade, has stronger competitive power in the international market.

The main place of production of China garlic: Jining City in Shandong Province Jinxiang County, the river for transporting grain to the capital informer times town in Yanzhou, Jining, the blue Ling County of Linyi City, Laiwu City, Shanghe County of Jinan City, Dongying City Guangrao County, Liaocheng City Chiping County, Heze City Chengwu County, Anqiu of Weifang City, garlic demonstration area, 50,000 hectares, Pizhou City of Jiangsu Province, Feng County, Sheyang County, Taicang, Hebei Yongnian County, Daming County is northern, Yulin City Ren Dong town, Guangxi Zhuang Autonomous Region, the Feng Ying township, Shenqiu County in Henan Province, Qixian County, the He Bingmacun of Zhongmou County, Shanghai International Automobile City Tourist Festival, city of Hui nationality, Laian County, Wenjiang, Sichuan district, Pengzhou City, Dali, the ground such as Xingping City, Shaanxi and Xinjiang.

Garlic belongs to allium vegetables, and winter hardiness is strong, growth thermophilic 12-25 DEG C, long-day crop.Suitable row irrigation slight alkalinity soil that is convenient, fertile, that be rich in organic matter is planted.

Garlic is one of vegetables needing fertile more and more resistance to fertilizer.Garlic is maximum with nitrogen to the absorbed dose of various nutritive element, and potassium, calcium, phosphorus, magnesium take second place.Using the absorbed dose of nitrogen as 1 time, then the assimilation ratio of various element is nitrogen: phosphorus: potassium: calcium: magnesium=1:0.25 ~ 0.35:0.85 ~ 0.95:0.5 ~ 0.75:0.060.Often produce 1600 kilograms of garlics and need absorbed nitrogen 13.4-16.3 kilogram, 1.9-2.4 kilograms, phosphorus, 7.1 ~ 8.5 kilograms, potassium, calcium 1.1 ~ 2.1 kilograms.Garlic is the peak period of garlic three elements absorbed dose in life after bulbil and bud differentiation; It is the absorption peak period of trace elements iron, manganese, magnesium before bolting; After adopting a kind of sedge, the absorption of three elements and boron reaches little peak again, and the absorption of zinc peaks.In three major fertilizer, nitrogen stress having the greatest impact to output, scarce phosphorus takes second place, and potassium deficiency impact is minimum, when three elements lack simultaneously, then larger on the impact of Garlic yield.

Just start after garlic emerges to absorb nitrogen nutrition, and each growth and development stage afterwards, all increasing sharply, the absorbed dose of bulb expanding stage to nitrogen especially after carrying a kind of sedge is maximum.Test-results shows the absorbed dose about 5.8 kilograms of garlic nitrogen in seedling stage, accounts for about 30% of integral dose; The absorbed dose of garlic stems elongating stage is about 7.4 kilograms, accounts for 38% of integral dose; The absorbed dose of head of garlic expanding stage is about 6.0 kilograms, accounts for 30.7% of integral dose.In the growth and development process of garlic, nitrogenous fertilizer supply is sufficient, and plant strain growth speed is accelerated, and nourishing body is large, leaf dark green and abundant; Nitrogen is not enough, and plant strain growth is slow, and thin and weak, leaf is little and yellow.If seedling stage nitrogen stress, performance poor growth, blade is long and narrow, leaf look pale green; Middle and later periods nitrogen stress, except complete stool move back green except, especially significantly feature is that yellow leaf easily appears in bottom, and time serious, blade easily dries up.Therefore, in production, lift-augmented mechanism should be noted.

Phosphorus element is to promoting growing of garlic root, and the differentiation, growth etc. of garlic stems and garlic clove are all indispensable.The garlic absorbed dose every mu of seedling stage to phosphorus is 0.855 kilogram, accounts for 17% of integral dose; Garlic stems absorbed dose elongating stage is the highest, and the absorbed dose of every mu 3.095 kilograms, accounts for 62% of integral dose; Enter head of garlic expanding stage absorbed dose after carrying a kind of sedge to reduce, every mu of absorbed dose is 1.1 kilograms, accounts for 21% of integral dose.

Potassium element is one of main nutrient elements of Garlic Absorption, it is the same with nitrogen, the amount absorbed in the whole growth and development process of garlic is many, content in plant body is also high, growing of garlic is played an important role, especially has direct relation to the content of sugar in garlic body and the quality of garlic.So the use of potash fertilizer should be attached great importance to aborning, ensure that garlic is to the needs of potassium element.The absorbed dose of garlic to potassium element is higher, and the absorbed dose in seedling stage every mu is 4.883 kilograms, accounts for 21.2% of integral dose; Garlic stems every mu of absorbed dose elongating stage is 12.25 kilograms, accounts for 53.2% of integral dose; Head of garlic expanding stage absorbed dose reduces, and every mu of absorbed dose is 5.889 kilograms, accounts for 25.6% of integral dose.

Calcium is executed and can reduce soil acidity on acid soil.During garlic calcium deficiency, necrotic plaque appears in plant leaf, along with the increase of necrotic plaque, curved under blade, blade tip is very fast dead, and root growth is subject to very large suppression; Enrich calcium, head of garlic output can be improved.

Magnesium is chlorophyllous moiety, and garlic magnesium deficiency can cause blade chlorisis, and symptom first shows at old blade base, and gradually to blade tip development, blade finally turns yellow death; The symptom of garlic magnesium deficiency generally shows more late, and plant strain growth is slow, and after planting 30 days, 6 ~ 7 leaves just appearred in plant.Enrich magnesium garlic head of garlic output can be made to increase sharply and can promote the absorption of nitrogen, phosphorus, potassium, but be absorbed with certain influence to calcium, along with the raising of magnesium density, the absorption of calcium reduces; But the absorption of calcium on magnesium does not almost affect.

Sulphur is Garlic quality constitution element, suitably executes sulphur, can strengthen garlic flavor, and the head of garlic is increased weight, the trend that garlic stems increases.Test-results shows, uses copper sulfate and potassium sulfate and can reduce lopsided a kind of sedge and blastomere rate (because of the head of garlic cracking that diauxic growth causes), improve the commodity of the head of garlic.Garlic is the crop needing sulfur content more, and the interior accumulative sulphur of its body can reach 0.3%-0.6%(in butt), containing pungent substance (taking sulphur as principal constituent) containing a large amount of in the head of garlic, is one of important indicator of Garlic quality evaluation; Meanwhile, in garlic, important sulfur-containing amino acid-alliin has extremely abundant biology and pharmacologically active.Therefore the sulphur nutritional status of garlic not only affects the output of garlic, also very close with the quality relation of garlic.

Boron can promote the growth of protein synthesis and nitrate reductase activity and mycorhiza, contributes to strengthening nitrogen fixing capacity, and boron can affect chloroplast structure, and promotes the transport of sugar.On existing fertility basis, enrich a certain amount of quick-acting boron and can improve Allicin Content in bulb.When Soil Available Boron contents reaches 1.10mg/Kg, be comparatively conducive to the formation of garlicin.

Zinc is the moiety of the many synthetic enzyme of plant materials, effectively can promote photosynthesis, participates in the synthesis of growth hormone and protein.Application of zinc fertilizer has obvious production-increasing function, and zinc also can increase bulb Allicin Content within the specific limits.

Copper is as the required trace element of plant, and can affect the nitrogen metabolism of plant, copper is conducive to the formation of bulb garlicin within the specific limits, but garlic is not high to its demand.

Polyglutamic acid prepares to obtain glutamic acid polymer by agriculture probiotic bacterium subtilis through modern biotechnology fermentation technique, and molecular weight can reach more than 3,000,000.Carboxyls a large amount of on polyglutamic acid side chain makes its similar large comb, has effect such as water suction moisturizing, chelating element etc., in conjunction with nitrogen etc., can improve utilization rate of fertilizer.Polyglutamic acid can make utilization rate of fertilizer bring up to 40%-50% by 30%-35% as fertilizer synergist, and utilization rate of nitrogen fertilizer on average improves 7%-12%, and crop on average increases production 10%-25%.In addition, apply that polyglutamic acid can also reach long-acting slow-release, improves soil physico-chemical property, eco-friendly effect.Use the crop leaf after polyglutamic acid plump, darken; Well developed root system; Cold-resistant, drought resisting, the resistance such as resistant to lodging significantly increase; Crop yield and quality significantly improve.

Potassium fulvate is the same with polyglutamic acid, can play the effect of Natural fertilizers synergistic agent.Soil can be improved after using potassium fulvate; Improve the plant recovery of nutrient such as nitrogen, phosphorus, potassium; Stimulate plant growth; Strengthen crop cold resistance, drought resisting, the anti-adversity such as disease-resistant; Improve crop quality.

All kinds of compounds (mixing) at present for Garlic Growth are fertile, there is following problem:

1, great majority are all common inorganic fertilizer, and life-time service can make soil become to harden, and soil fertility weakens, and the crumb structure of soil is destroyed serious;

2, fertilizer nutrient is uneven;

3, fertilizer efficiency is short, utilization ratio is low, easily causes nutrient loss and later stage de-fertilizer;

4, not comprehensive nutrition, generally not containing the medium trace element such as sulphur, magnesium, boron, iron, zinc, manganese, copper that is significantly increased to Garlic yield and quality, causes the not high and quality of Garlic yield to decline;

5, proportioning does not meet the regulation of fertilizer requirement of garlic;

6, the continuous cropping obstacles such as anti-adversity weakens, disease and pest is multiple that garlic long-term planting is brought cannot be alleviated.

Applicant is by the investigation on the spot to the main planting area of garlic, simultaneously in conjunction with regulation of fertilizer requirement and the fertilizing method of garlic, researching and developing a kind of Tower-type melt granulation containing the cold-resistant drought resisting of potassium fulvate full nutrition garlic special fertilizer, having proposed a new thinking for solving the problem.

Summary of the invention

The object of this invention is to provide a kind of Tower-type melt granulation containing garlic special fertilizer, with the effect realizing increasing Garlic yield, promote Garlic quality.

A kind of Tower-type melt granulation garlic of the present invention special fertilizer, parts by weight of raw materials is as follows:

Urea 315-525 part,

Industrial monoammonium phosphate 55-215 part,

Potassium sulfate 155-405 part,

Anhydrous magnesium sulfate 5-25 part,

Boric acid 5-25 part,

EDTA chelated zinc 2-10 part,

EDTA chelated iron 2-10 part,

EDTA Chelated Manganese 2-10 part,

EDTA chelated copper 2-10 part,

Ammonium Heptamolybdate 0-5 part,

Polyglutamic acid 10-60 part,

Potassium fulvate 10-60 part;

Above-mentioned raw materials is commercially available, wherein:

Urea is small particle urea (N >=46.2%. particle diameter 0.85mm-2.80mm);

Monoammonium phosphate is common powdery monoammonium phosphate (nutrient >=60%);

Potassium sulfate is white powder (K2O content >=52%);

Anhydrous magnesium sulfate: white (main content >=98%)

Boric acid is white powder (industrial acceptable end product, Boron contents >=17%);

EDTA chelated zinc: white powder, chelated zinc content >=15%;

EDTA chelated iron: yellow powder, chelated iron content >=13%;

EDTA Chelated Manganese: pale red powder, Chelated Manganese content >=13%;

EDTA Chelated Manganese: blue powder, chelated copper content >=15%;

Ammonium Heptamolybdate: white crystals (main content >=98%);

Polyglutamic acid is faint yellow pulvis (polyglutamic acid content >=30%);

Potassium fulvate: black powder, entirely water-soluble, xanthohumic acid content >=50%, potassium oxide content >=10%;

Above-mentioned raw materials is except urea, and the particle diameter of other raw materials is all less than millimeter.

Tower-type melt granulation garlic special fertilizer of the present invention, further preferred feedstock ingredients weight parts is as follows:

Urea 375-440 part,

Industrial monoammonium phosphate 115-175 part,

Potassium sulfate 305-385 part,

Anhydrous magnesium sulfate 5-15 part,

Boric acid 5-10 part,

EDTA chelated zinc 5-10 part,

EDTA chelated iron 5-10 part,

EDTA Chelated Manganese 5-10 part,

EDTA chelated copper 2-6 part,

Ammonium Heptamolybdate 0-4 part,

Polyglutamic acid 15-45 part,

Potassium fulvate 15-45 part.

Tower-type melt granulation garlic special fertilizer of the present invention, most preferably feed composition weight part is as follows:

400 parts, urea,

Industrial monoammonium phosphate 150 parts,

Potassium sulfate 345 parts,

Anhydrous magnesium sulfate 12 parts,

Boric acid 8 parts,

EDTA chelated zinc 7 parts,

EDTA chelated iron 6 parts,

EDTA Chelated Manganese 6 parts,

EDTA chelated copper 4 parts,

Ammonium Heptamolybdate 2 parts,

Polyglutamic acid 30 parts,

Potassium fulvate 30 parts.

Its concrete technological process of production is as follows:

Step 1: by raw material urea through high-temperature fusion (130 DEG C-140 DEG C), enter in dashpot, then through transferpump pressurization, deliver in tower top tempering tank after metering;

Step 2: first by anhydrous magnesium sulfate, boric acid, EDTA chelated zinc, EDTA chelated iron, EDTA Chelated Manganese, EDTA chelated copper, Ammonium Heptamolybdate, potassium fulvate pre-mixing by a certain percentage, and then after this mixture and monoammonium phosphate, potassium sulfate are measured respectively, send in agitator and fully mix.Mixing raw material is sent in batch mixing well heater after crushing and screening, is heated to 80 DEG C-90 DEG C, then rises to tower top feed bin by chapelet;

Step 3: the batch mixing after the heating in tower top feed bin in step 2 is sent into after spiral metering scale evenly measures in tempering tank described in above-mentioned steps 1, scattered paste shape material is mixed and made into through high shear agitation machine, temperature controls at 100 DEG C-120 DEG C, after vibrations metre filter falls granule foreign, overflow is to prilling spry, under shower nozzle rotational shear centrifugal action, mixture is evenly sprayed glomerate small droplets.Spray the small droplets fallen slowly to fall in the tower of diameter 12 meters-20 meters high 105 meters-120 meters from shower nozzle, through with the upstream heat exchange in tower after be cooled to 45 DEG C-65 DEG C, namely become compound fertilizer granules;

Step 4: compound fertilizer granules drops down onto after at the bottom of tower, is sent to cooling drum through belt, then bucket is carried to screening, first screens out large grain, then screens out granule, and ensure that fertiliser granulates is between 2.0mm-4.0mm, fertiliser granulates is cooled to 30 DEG C-40 DEG C;

Step 5: the compound fertilizer granules sieved is carried out to the anti-caking process such as bag oil, face powder, adds a certain amount of polyglutamic acid, measures, packs while face powder.

Tower-type melt granulation prepared by the present invention has the following advantages containing the cold-resistant drought resisting of potassium fulvate full nutrition garlic special fertilizer:

1, nutrient is balanced, stable

This technique is in micro molecule level, the raw materials such as urea, monoammonium phosphate, potassium sulfate are fused into an organic nutrient entirety, by the mutual synergy between various nutrient, form balanced stable nutrient unit, ensure that the equilibrium of Fertilizer nutrient composition is with stable.

2, outward appearance is round and smooth, not easily hardens

This technique adopts high tower fused melt granulated, not only do not introduce moisture in production process, and effectively reduce product moisture by heating and melting and powder preheating, product particle outward appearance is round and smooth, moisture is extremely low, ultimate compression strength greatly and not easily harden.

3, comprehensive nutrition

Except containing except the required macroelement nitrogen of plant growth, phosphorus, potassium in product, also containing medium trace element sulphur, magnesium, iron, zinc, manganese, copper, boron, molybdenum easily absorbed by crops.

4, soil is improved

Garlic special formula fertilizer prepared by the present invention, with the addition of polyglutamic acid and potassium fulvate, the formation of soil aggregate can be promoted, coordinate the soil water, fertilizer, gas, thermal conditions, to improveing sand, to cross the lean soil such as glutinous respond well, thus improve the ecotope of Garlic Growth.

5, garlic resistance is strengthened

Garlic special formula fertilizer prepared by the present invention, with the addition of appropriate polyglutamic acid and potassium fulvate.The micromolecule polypeptide that wherein polyglutamic acid is formed after biological degradation can induce the expression of garlic resistance gene, improves the anti-adversities such as cold-resistant, the drought resisting of garlic, resistant to lodging, disease and insect resistance.Potassium fulvate can cushion the change of the soil water, fertilizer, gas, heat, reduces the detrimentally affect of Garlic Growth, and then strengthens the resistance of garlic.

6, energy-saving and cost-reducing, environmental friendliness

First, adopt high tower process in production process, carrying out granulation without the need to adding moisture and steam and bonding material in production process, preventing from luming because of Moisture high UCL, need not dry, saving the energy.Simultaneously because of almost without returning charge dust pollution, make Working environment more clean, without " three wastes " discharge.

Secondly, the polyglutamic acid added in the present invention has splendid sequestering action to toxic heavy metals such as lead, arsenic, chromium, cadmium, mercury, can form huge molecule, can not be absorbed by root hair, effectively can reduce the absorption of garlic to harmful heavy metal, therefore be a kind of eco-friendly fertilizer.

Embodiment

Embodiment 1:

400 parts, urea, monoammonium phosphate 150 parts, potassium sulfate 350 parts, stopping composition 100 parts.

Step 1: by 400 parts of urea, through high-temperature fusion (130 DEG C-140 DEG C), enters in dashpot, then through transferpump pressurization, with being pumped in tower top mixing tank.

Step 2: by 150 parts of monoammonium phosphates, 350 parts of potassium sulfate, 100 parts of stopping composition are sent in agitator after metering and are fully mixed.Mixing raw material, after crushing and screening, sends into batch mixing heater heats to 80-90 DEG C.Carry machine by bucket type and deliver to tower top feed bin.。

Step 3: the hot batch mixing of tower top feed bin in step 2 is sent in mixing tank described in above-mentioned steps 1 after spiral weighing balance evenly measures, scattered paste shape material is mixed and made into through high shear agitation machine, temperature controls at 100 DEG C-120 DEG C, after vibrations metre filter falls granule foreign, overflow is to prilling spry, under shower nozzle rotational shear centrifugal action, mixture is evenly sprayed glomerate small droplets.Spray the small droplets fallen slowly to fall in the tower of diameter 12-20 rice, high 105-120 rice from shower nozzle, through with the upstream heat exchange in tower after be cooled to 45-65 DEG C, namely become compound fertilizer granules.Metering packing after cooling, screening and anti-caking process again.

The product specification obtained is 20-7-18, not containing medium trace element, potassium fulvate, polyglutamic acid.

Embodiment 2:

400 parts, urea, monoammonium phosphate 150 parts, potassium sulfate 350 parts, anhydrous magnesium sulfate 12 parts, boric acid 8 parts, EDTA chelated zinc 7 parts, EDTA chelated iron 6 parts, EDTA Chelated Manganese 6 parts, EDTA chelated copper 4 parts, Ammonium Heptamolybdate 2 parts, stopping composition 55 parts.

Step 1: by raw material urea through high-temperature fusion (130 DEG C-140 DEG C), enter in dashpot, then through transferpump pressurization, deliver to after metering in tower top tempering tank.

Step 2: first by anhydrous magnesium sulfate, boric acid, EDTA chelated zinc, EDTA chelated iron, EDTA Chelated Manganese, EDTA chelated copper, Ammonium Heptamolybdate, stopping composition pre-mixing by a certain percentage, and then after this mixture and monoammonium phosphate, potassium sulfate are measured respectively, send in agitator and fully mix.Mixing raw material is sent in batch mixing well heater after crushing and screening, is heated to 80 DEG C ~ 90 DEG C, then rises to tower top feed bin by chapelet.

Step 3: the batch mixing after the heating in tower top feed bin in step 2 is sent into after spiral metering scale evenly measures in tempering tank described in above-mentioned steps 1, scattered paste shape material is mixed and made into through high shear agitation machine, temperature controls at 100 DEG C-120 DEG C, after vibrations metre filter falls granule foreign, overflow is to prilling spry, under shower nozzle rotational shear centrifugal action, mixture is evenly sprayed glomerate small droplets.Spray the small droplets fallen slowly to fall in the tower of diameter 12 meters-20 meters high 105 meters-120 meters from shower nozzle, through with the upstream heat exchange in tower after be cooled to 45 DEG C-65 DEG C, namely become compound fertilizer granules.

Step 4: compound fertilizer granules drops down onto after at the bottom of tower, is sent to cooling drum through belt, then bucket is carried to screening, first screens out large grain, then screens out granule, and ensure that fertiliser granulates is between 2.0mm-4.0mm, fertiliser granulates is cooled to 30 DEG C-40 DEG C.

Step 5: the compound fertilizer granules sieved is carried out to the anti-caking process such as bag oil, face powder, measure, pack.

The product specification obtained is 20-7-18, containing medium trace element, not containing potassium fulvate, polyglutamic acid.

Embodiment 3:

400 parts, urea, monoammonium phosphate 150 parts, potassium sulfate 345 parts, anhydrous magnesium sulfate 12 parts, boric acid 8 parts, EDTA chelated zinc 7 parts, EDTA chelated iron 6 parts, EDTA Chelated Manganese 6 parts, EDTA chelated copper 4 parts, Ammonium Heptamolybdate 2 parts, potassium fulvate 30 parts, polyglutamic acid 30 parts.

Step 1: by raw material urea through high-temperature fusion (130 DEG C-140 DEG C), enter in dashpot, then through transferpump pressurization, deliver to after metering in tower top tempering tank.

Step 2: first by anhydrous magnesium sulfate, boric acid, EDTA chelated zinc, EDTA chelated iron, EDTA Chelated Manganese, EDTA chelated copper, Ammonium Heptamolybdate, potassium fulvate pre-mixing by a certain percentage, and then after this mixture and monoammonium phosphate, potassium sulfate are measured respectively, send in agitator and fully mix.Mixing raw material is sent in batch mixing well heater after crushing and screening, is heated to 80 DEG C-90 DEG C, then rises to tower top feed bin by chapelet.

Step 3: the batch mixing after the heating in tower top feed bin in step 2 is sent into after spiral metering scale evenly measures in tempering tank described in above-mentioned steps 1, scattered paste shape material is mixed and made into through high shear agitation machine, temperature controls at 100 DEG C-120 DEG C, after vibrations metre filter falls granule foreign, overflow is to prilling spry, under shower nozzle rotational shear centrifugal action, mixture is evenly sprayed glomerate small droplets.Spray the small droplets fallen slowly to fall in the tower of diameter 12 meters-20 meters high 105 meters-120 meters from shower nozzle, through with the upstream heat exchange in tower after be cooled to 45 DEG C-65 DEG C, namely become compound fertilizer granules.

Step 4: compound fertilizer granules drops down onto after at the bottom of tower, is sent to cooling drum through belt, then bucket is carried to screening, first screens out large grain, then screens out granule, and ensure that fertiliser granulates is between 2.0mm-4.0mm, fertiliser granulates is cooled to 30 DEG C-40 DEG C.

Step 5: the compound fertilizer granules sieved is carried out to the anti-caking process such as bag oil, face powder, adds a certain amount of polyglutamic acid, measures, packs while face powder.

The product specification obtained is 20-7-18, containing medium trace element, potassium fulvate, polyglutamic acid.

Comparative example:

Common 15-15-15 S-based compound fertilizer

Manure trial

Test site: Sun Zhuan village, Yu Shan town, Jining City in Shandong Province Jinxiang County.

For examination soil nutrient content be: organic 1.53%, alkali-hydrolyzable nitrogen 80.6mg/Kg, rapid available phosphorus (P2O5) 10.4mg/Kg, available potassium (K2O) 132.1mg/Kg, soil pH value is 6.5.

For examination garlic cultivar be: No. one, Jinxiang.

4 process are established in this experiment altogether, specifically process in table 1, often process repetition 3 times, and random district group arranges, and experimental plot area is 32m2,8m × 4m rectangle, and surrounding establishes protection row.Garlic was sowed on October 10th, 2013, and on March 15th, 2014 topdresses once, and on May 5th, 2014 receives garlic shoot, and May 23 gathered in the crops.

All process rates of fertilizer application are 1500Kg/hm2, and every community rate of fertilizer application is 4.80Kg, and equal 70% fertilizer is used for base to be executed, and 30% for imposing, and specifically in table 1, the field management measures such as all the other weedings, laxative, irrigation are identical.

The process of table 1 Garlic Fertilization

Mensuration project and method: when gathering in the crops garlic shoot and the head of garlic, every community is sampling and measuring garlic shoot and head of garlic weight respectively, calculates theoretical per mu yield.

The garlic economy proterties of table 2 different fertilization

As shown in Table 2, the biomass of each fertilizer treatment, garlic shoot, head of garlic size order are: process D(20-7-18, containing medium trace element, potassium fulvate, polyglutamic acid) > process C (20-7-18, containing medium trace element, not containing potassium fulvate, polyglutamic acid) > treatments B (20-7-18, not containing medium trace element, potassium fulvate, polyglutamic acid) > process A(15-15-15).

The garlic shoot output of process D increases by 999 Kg/hm2 than treatments B, stimulation ratio 66.67%; Increase by 399.6 Kg/hm2, stimulation ratio 19.05% than process C.Treatments B garlic shoot output increases 199.8Kg/hm2 than process A, and stimulation ratio 15.38%, illustrates that 20-7-18 proportioning is more suitable for the formula fertilizer as garlic than 15-15-15 balance fertilizer proportioning.

The head of garlic output of process D increases 4194.81Kg/hm2 than treatments B, stimulation ratio 29.33%; 2538.46Kg/hm2 is increased, stimulation ratio 15.91% than process C.Treatments B head of garlic output increases 2112.88Kg/hm2, stimulation ratio 17.34% than process A.The plant recovery of nutrient that can significantly improve fertilizer after adding medium trace element, potassium fulvate and polyglutamic acid is described, promotes Garlic Growth.

Therefore, garlic special formula fertilizer nutrient formula of the present invention contains medium trace element, potassium fulvate, polyglutamic acid with the 20-7-18(of embodiment 3) the most reasonable.

Claims (4)

1. a Tower-type melt granulation garlic special fertilizer, is characterized in that being prepared from by the raw material of following weight part: urea 315-525 part, industrial monoammonium phosphate 55-215 part, potassium sulfate 155-405 part, anhydrous magnesium sulfate 5-25 part, boric acid 5-25 part, EDTA chelated zinc 2-10 part, EDTA chelated iron 2-10 part, EDTA Chelated Manganese 2-10 part, EDTA chelated copper 2-10 part, Ammonium Heptamolybdate 0-5 part, polyglutamic acid 10-60 part, potassium fulvate 10-60 part;

Above-mentioned raw materials is commercially available prod, wherein:

Described urea is small particle urea, N content >=46.2%, particle diameter 0.85mm-2.80mm;

Described monoammonium phosphate is common powdery monoammonium phosphate, nutrient >=60%;

Described potassium sulfate is white powder, K2O content >=52%;

Described boric acid is white powder, Boron contents >=17%;

Described EDTA chelated zinc is white powder, chelated zinc content >=15%;

Described EDTA chelated iron is yellow powder, chelated iron content >=13%;

Described EDTA Chelated Manganese is pale red powder, Chelated Manganese content >=13%;

Described EDTA Chelated Manganese is blue powder, chelated copper content >=15%;

Described polyglutamic acid is faint yellow pulvis, polyglutamic acid content >=30%;

Described potassium fulvate is black powder, entirely water-soluble, xanthohumic acid content >=50%, potassium oxide content >=10%;

The content related in above raw material is mass percent;

Above-mentioned raw materials is except urea, and the particle diameter of other raw materials is all less than 1 millimeter.

2. Tower-type melt granulation garlic special fertilizer as claimed in claim 1, is characterized in that being prepared from by the raw material of following weight part: urea 375-440 part, industrial monoammonium phosphate 115-175 part, potassium sulfate 305-385 part, anhydrous magnesium sulfate 5-15 part, boric acid 5-10 part, EDTA chela zinc 5-10 part, EDTA chelated iron 5-10 part, EDTA Chelated Manganese 5-10 part, EDTA chelated copper 2-6 part, Ammonium Heptamolybdate 0-4 part, polyglutamic acid 15-45 part, potassium fulvate 15-45 part.

3. Tower-type melt granulation garlic special fertilizer as claimed in claim 1, is characterized in that being prepared from by the raw material of following weight part: 400 parts, urea, industrial monoammonium phosphate 150 parts, potassium sulfate 345 parts, anhydrous magnesium sulfate 12 parts, boric acid 8 parts, EDTA chelated zinc 7 parts, EDTA chelated iron 6 parts, EDTA Chelated Manganese 6 parts, EDTA chelated copper 4 parts, Ammonium Heptamolybdate 2 parts, polyglutamic acid 30 parts, potassium fulvate 30 parts.

4. prepare as arbitrary in claim 1-3 as described in the method for Tower-type melt granulation garlic special fertilizer, it is characterized in that comprising following processing step:

Step 1: by the high-temperature fusion of raw material urea through 130 DEG C-140 DEG C, enter in dashpot, then through transferpump pressurization, deliver in tower top tempering tank after metering;

Step 2: first by anhydrous magnesium sulfate, boric acid, EDTA chelated zinc, EDTA chelated iron, EDTA Chelated Manganese, EDTA chelated copper, Ammonium Heptamolybdate, potassium fulvate pre-mixing by a certain percentage, and then after this mixture and monoammonium phosphate, potassium sulfate are measured respectively, send in agitator and fully mix, mixing raw material is sent in batch mixing well heater after crushing and screening, be heated to 80 DEG C-90 DEG C, then rise to tower top feed bin by chapelet;

Step 3: the batch mixing after the heating in tower top feed bin in step 2 is sent into after spiral metering scale evenly measures in tempering tank described in above-mentioned steps 1, scattered paste shape material is mixed and made into through high shear agitation machine, temperature controls at 100 DEG C-120 DEG C, after vibrations metre filter falls granule foreign, overflow is to prilling spry, under shower nozzle rotational shear centrifugal action, mixture is evenly sprayed glomerate small droplets, the small droplets that falls is sprayed diameter 12 meters-20 meters from shower nozzle, slowly fall in the tower of high 105 meters-120 meters, through with the upstream heat exchange in tower after be cooled to 45 DEG C-65 DEG C, namely compound fertilizer granules is become,

Step 4: compound fertilizer granules drops down onto after at the bottom of tower, is sent to cooling drum through belt, then bucket is carried to screening, first screens out large grain, then screens out granule, and ensure that fertiliser granulates is between 2.0mm-4.0mm, fertiliser granulates is cooled to 30 DEG C-40 DEG C;

Step 5: the compound fertilizer granules sieved is carried out to the anti-caking process such as bag oil, face powder, adds a certain amount of polyglutamic acid, measures, packs while face powder.