CN102153416A - Special root-inducing slow release high-efficiency fertilizer for double cropping rice and preparation method thereof - Google Patents
Special root-inducing slow release high-efficiency fertilizer for double cropping rice and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a special root-inducing slow release high-efficiency fertilizer for double cropping rice and a preparation and application method thereof. The preparation method comprises the following steps: mixing and blending nitrogen fertilizer and compound synergist in a blender for 3-5 minutes to obtain root-inducing slow release high-efficiency nitrogen fertilizer; and then, continuing to mix with phosphorus fertilizer and potassium fertilizer for about 5 minutes to obtain the finished fertilizer, wherein the compound synergist is prepared by uniformly mixing the following materials in percentage by weight: 3.4-3.8% of borax (B), 2-2.5% of hydroquinone (HQ), 0.9-1.4% of dicyandiamide (DCD), 33-36% of silicon fertilizer (SiO2), 9-14% of polyaspartic acid (PASP), 31-38% of humic acid (HA) and 9-12% of phosphorus activator. The finished fertilizer is used as basal fertilizer to be completely applied after rice soaking and in the early rice transplanting stage, and no additional fertilizer is required for the later stage; the amount of applied fertilizer for early rice is 40-45 kg/mu; and the amount of applied fertilizer for late rice is 50-55 kg/mu. The fertilizer disclosed by the invention has the dual effects of promoting root growth and delaying nutrient release, can greatly improve the nutrient utilization ratio and rice yield, is convenient to produce and use, and has the advantages of high technical compatibility, low cost, environment friendliness and the like.
Description
Technical field
Patent of the present invention relates to a kind of by add composite synergist in fertilizer, reach and promote the rice root growth and delay fertilizer nutrient to discharge collaborative carrying out, and effectively improve the short root of plant recovery of nutrient---the efficient double cropping of rice of slow release type special-purpose fertile preparation and using method thereof, be mainly used in southern double cropping of rice land for growing field crops and produce, belong to fertiliser production and Application Areas.
Background technology
Paddy rice is one of most important food crop of China, has important strategic position in Grain Production in China.According to statistics, China's rice area accounts for 29% of the food crop total area, and gross output accounts for 44% of national total grain output, and wherein double cropping of rice accounts for more than 25% of national paddy rice cultivated area, mainly concentrates on 4 provinces and regions such as Jiangxi, Hunan, Guangdong, Guangxi.
Paddy rice also is one of maximum crop of fertilizer requirement, China is annual to apply a large amount of fertilizer owing to devote exclusive attention to output, but per season rice plant recovery of nutrient lower, according to statistics, the utilization rate of nitrogen fertilizer of China rice of per season only was 25%-35% in recent years, and phosphate fertilizer utilization efficiency is 30%-50% for 10%-20%, potassium utilization rate only.Utilization rate of fertilizer is not high, has not only caused the waste of the huge energy and data, and has increased the Rice Production cost, has polluted ecotope.Improve utilization rate of fertilizer and be not only the important measures that guarantee the paddy rice high and stable yields, and be pressing for of preserving the ecological environment.The raising of rice yield and utilization rate of fertilizer and fertilizer nutrient service time and promotion root growth have vital relation.Common rice commonly used at present is special-purpose fertile in the slow release effect extreme difference, and the raising of plant recovery of nutrient is comparatively limited.Existing slow controlled-release effect is sulphur coating and coated with resin fertilizer preferably, owing to exist edatope caused potentially contaminated, with high costs, produce dumb and convenience, with problems such as existing production technology and equipment compatibility differences, be difficult to realize Sustainable development and scale operation on existing compound fertilizer technology basis, application.Therefore, develop a kind of rice root growth of can promoting, can delay fertilizer nutrient again and discharge, and then the efficient paddy rice-dedicated fertilizer that can effectively improve utilization rate of fertilizer seems particularly important and urgent.
Reach cost-saving synergistic by in fertilizer, adding synergistic agent, ecological, environmental protective is one of effective measure in the present fertilizer research.The U.S. is in the eighties of last century thirties and carried out the research of urease inhibitor and nitrification inhibitor the fifties respectively, and wherein Nitrapyrin is U.S.'s commercialization the earliest and a large amount of nitrification inhibitors that use on the farm crop.Research thinks that effect nitrification inhibitor preferably is a Dyhard RU 100 in the world at present, and urease inhibitor is quinones and phosphoramide types compound.Shenyang Inst. of Applied Ecology, Chinese Academy of Sciences is one of China unit of carrying out this aspect research the earliest, wherein Yan Zhi New-type wide-spectrum nitrogenous fertilizer long-acting synergist " fertile grand " is the inhibition of collection urase, inhibiting nitrification, ammonia is stable and plant growth substance is the durable potentiating agent for nitrogen fertilizer of one, for base is once executed, in the crop whole growth phase, need not topdress, prolong fertilizer effectiveness, make the fertile feature of confession of nitrogenous fertilizer and crop be tending towards synchronous to the absorbing rule of nutrition, reach the promotion plant growth, improve crop yield, it is in average volume increase about 10% on the paddy rice.Agricultural University Of Hunan discloses and has a kind ofly reached the paddy rice formulated fertilizer synergist of nitrogenous fertilizer long-acting slowly-releasing by adding rare earth, borax, quinhydrones, Dyhard RU 100 and siliceous fertilizer at prescription in the fertilizer, and application result shows on paddy rice, and its amount of increase in production is at 7%-12%.
In sum, development on paddy rice has obtained certain progress about nitrogen fertilizer potentiating agent in China, but still there is an effect of increasing production instability, to the relatively poor shortcoming of adaptability under the conditions such as different soils, different nitrogen sources fertilizer, different planting system and different climatic characteristics, and most of research concentrates on the development of nitrogen fertilizer potentiating agent prescription, and about further synergist of phosphate, potash fertilizer and little fertilizer and collaborative root growth, the related fertilizer production technology and the patent that effectively improve plant recovery of nutrient of promoting yet there are no report on the basis of synergistic N fertilizer at southern double rice cropping system.
Summary of the invention
The objective of the invention is to solve above-mentioned the deficiencies in the prior art part, provide that a kind of production technique is simple, low production cost, practicality is strong, handiness is higher, effectively improve short root---the technology of preparing and the using method thereof of slow release type concentrated fertilizer of plant recovery of nutrient and double cropping of rice output.
In order to reach above purpose, the present invention adopts following technical scheme:
The present invention at first proposes the composite synergistic agent prescription on a large amount of experiment basis, in nitrogenous fertilizer, add composite synergist, by in fertilizer, adding a kind of composite synergist, reach and promote the rice root growth and delay fertilizer nutrient to discharge collaborative carrying out, then by optimum amount at early rice and late rice adjusted composite synergist, reach and promote the rice root growth and delay fertilizer nutrient and discharge collaborative carrying out, and effectively improve the purpose of plant recovery of nutrient.
The first step, the preparation of composite synergist: concrete compound method is: boron (B) 3.4%-3.8% by weight; Quinhydrones (HQ) 2%-2.5%; Dyhard RU 100 (DCD) 0.9%-1.4%; Silicon (S
i O
2) 33%-36%; Poly aspartic acid (PASP) 9%-14%; Humic acids (HA) 31%-38%; The plain activator 9%-12% of phosphorus gets final product behind the mixing.Be kept at shady and cool dry place, preferably matching while using.
Its best compound method is: borax 3.5% by weight; Quinhydrones 2.3%; Dyhard RU 100 1.2%; Siliceous fertilizer 35%; Poly aspartic acid 11.5%; Humic acids 35%; The plain activator 11.5% of phosphorus gets final product behind the mixing.
Second step, short root---the preparation method of the efficient double cropping of rice dedicated fertilizer of slow release type: take by weighing the composite synergist that has prepared in a certain amount of nitrogenous fertilizer and the first step by fertilizer formula requirements and in stirrer, mix stirring 3-5 minute, as be granular urea, making composite synergist evenly coat urea surface gets final product, leave standstill then and promptly get long-acting slowly released nitrogen fertilizer about 10 minutes, the phosphate fertilizer that again will be in advance weighs up by fertilizer formula with continue to mix the fertilizer that gets product about 5 minutes in potash fertilizer adds stirrer.
For enterprise produces, if nitrogenous fertilizer, phosphate fertilizer, potash fertilizer and filler are bulk or particulate state, need to be ground into through pulverizer in advance Powdered, take by weighing a certain amount of nitrogenous fertilizer by fertilizer formula then and in stirrer, mix stirring 5-7 minute, continue to mix about 5 minutes in the Powdered phosphate fertilizer that will weigh up by fertilizer formula in advance, potash fertilizer and other filler adding stirrer again with composite synergist.Enter granulation in the tablets press by travelling belt then, the fertilizer behind the granulating is by dry and screening, and fertilizer gets product.
The special-purpose fertile described composite synergist consumption of short root of the present invention---long-acting slow release type double cropping of rice, early rice is the 8%-10% of fertilizer gross weight in kind, late rice is 10%-12%.
Described nitrogenous fertilizer is ammonium chloride, ammonium sulfate, ammonium nitrate, urea, monoammonium phosphate, diammonium phosphate; Phosphate fertilizer is calcium superphosphate, fused(calcium magnesium)phosphate, monoammonium phosphate, diammonium phosphate; Potash fertilizer is vitriolate of tartar and Repone K; Siliceous fertilizer is water glass, Calucium Silicate powder.
Described short root---npk nutrient prescription in the special-purpose fertilizer of the efficient double cropping of rice of slow release type is characterized in that according to the south rice regulation of fertilizer requirement designing pure nutrient formula rate is N:P
2O
5: K
2O=16-18:8-10:18-20, its optimum formula ratio is 18:8:20.
The special-purpose fertile application process of short root of the present invention---long-acting slow release type double cropping of rice: be the disposable Tanaka of applying of base manure behind the soaked field and between rice transplanting in earlier stage, the early rice rate of fertilizer application is 40-45 kilogram/mu, late rice rate of fertilizer application 45-50 kilogram/mu.
Short root of the present invention---the efficient double cropping of rice of slow release type is special-purpose fertile, is mainly used in double cropping of rice areas such as China south, particularly Jiangxi, Hunan, Hubei, Zhejiang, Fujian.
Borax can suppress urease activity to a certain extent in the composite synergist component of the present invention, simultaneously, can replenish the demand of paddy rice to boron.
Quinhydrones has the effect that suppresses urase as urease inhibitor in the composite synergist component of the present invention, reduces because of the quick hydrolysis of urea, the ammonia loss by volatilization that causes.
Dyhard RU 100 in the composite synergist component of the present invention is the more a kind of nitrification inhibitor of Recent study, compares with other nitrification inhibitors, has advantages such as better water solubility and degraded thoroughness.It mainly is to delay and suppress process and the effect that ammonium nitrogen transforms to nitric nitrogen, reduces the nitrogen leaching loss, improves the nitrogen nutrient utilization ratio.
Poly aspartic acid is the environmental type fertilizer synergist of generally acknowledging in the world in the composite synergist component of the present invention, it has good chelating and adsorption, can reach middle micro-comprehensive absorption to nitrogen, phosphorus, potassium by the efficient hardening crop, improve utilization rate of fertilizer, increase crop yield, promote root growth, strengthen resistance.
The effective stationary state phosphorus in the activating soil of the plain activator of phosphorus in the composite synergist component of the present invention improves the content of available phosphorus in the soil, promotes the crop root growth, improves crop resistance and effect such as improves the soil.
Humic acids has and promotes root growth and crop to nutrient absorbing in the composite synergist component of the present invention, delays that nutrient discharges and effect such as improve the soil.
Siliceous fertilizer can produce good physiological effect to paddy rice in the composite synergist component of the present invention, make the rice plant stalwartness, improve disease and insect resistance and ability resistant to lodging, above-mentioned raw materials is the commercially available prod, and wherein the phosphoric acid activation agent is sold by Heilungkiang Ai Gerui Bioisystech Co., Ltd; Poly aspartic acid is sold by chemical industry company limited of DESAY.
Principle of the present invention: be easy to volatilization and leaching loss at nitrogen nutrient, phosphorus potassium attainment branch is easy to the low problem of plant recovery of nutrient that caused by soil fixing etc.The present invention effectively promotes root growth and improves the root system vigor by add poly aspartic acid, the plain activator of phosphorus and humic acids in fertilizer.Simultaneously, the poly aspartic acid of interpolation and humic acids can chelating and adsorption of nitrogen phosphorus potassium and micronutrients, delay the time of releasing of nutrient.And at the nitrogen nutrient dispose procedure, the present invention also delays hydrolysis of urea process and the ammonium nitrogen time to the nitric nitrogen conversion by adding urease inhibitor (quinhydrones, boron and humic acids) and nitrification inhibitor (Dyhard RU 100), nutrient is absorbed by poly aspartic acid again, thereby form the systematic procedure of the absorption of complete absorption-desorption-conversion-inhibition-again, further prolong the lifetime of nitrogen nutrient in soil.In the release and fixation procedure of phosphorus element, the present invention is by the plain activator of the phosphorus that adds, on the one hand in the activated fertilizer by the phosphorus element of soil fixing, the further phosphorus element in the activating soil on the other hand, thus effectively improve the content and the retention time of available phosphorus in the soil.Final purpose of the present invention is to promote root growth and raising root system vigor and prolong collaborative carrying out between the retention time of available nutrient in soil, increases substantially the utilising efficiency of nitrogen, phosphorus, potassium and micronutrient.
Compare with the special-purpose slow-release or control-release fertilizer of other paddy rice, the present invention has following advantage:
1, the fertiliser production cost is low, ecological, environmental protective
Short root among the present invention---the special-purpose fertile composite synergist addition of the efficient double cropping of rice of slow release type only is the 8%-12% of the total weight in kind of common composite fertilizer, addition is less, only on the basis of present common rice composite fertilizer special cost, increase 10%-15%, the product cheapness, the peasant is easy to accept.Comprehensive promotion root growth that adopts of the present invention and nutrient long-acting slow-release are worked in coordination with and are carried out; can effectively reduce ammonia volatilization; reduce nitrous oxide emission and nitrate leaching; preserve the ecological environment and agricultural product security; reduce greenhouse gas emission; and also there is not the difficult degradation problem in material therefor, to zero environmental.
2, promote the rice root growth to organically combine, effectively improve the utilization ratio of nutrient with delaying fertilizer nutrient release
The present invention is the short root that proposes on a large amount of experiment basis---slow release type composite synergistic agent prescription and its addition in fertilizer.It specifically acts on is to reach to work in coordination with between the time of releasing that promotes root growth, raising root system vigor and delay nitrogen phosphorus potassium and micronutrient by an amount of poly aspartic acid of interpolation in common fertilizer, the plain activator of phosphorus, humic acids, urase and nitrification inhibitor to carry out, effectively increase root system of plant to the nutrient absorbing amount, finally significantly improve the plant recovery of nutrient of fertilizer.
3, produce flexibly, easy to use
Short root among the present invention---the special-purpose fertilizer of the efficient double cropping of rice of slow release type not only enterprise can be produced according to prescription, and the peasant also can prepare as required voluntarily, and produce and process for preparation in can also add the needed micronutrient element of some paddy rice flexibly according to the paddy rice demand.
4, technical compatibility is strong, is easy to promote
Short root among the present invention---the efficient double cropping of rice of slow release type is special-purpose fertile, enterprise can produce after simply adjusting on existing compound fertilizer production technology and the technical foundation, need not to improve and acquire any equipment, effectively reduce the fixed capital input of enterprise, increased the productivity effect of enterprise indirectly and enlarged this The Application of Technology scope.
5, nutrient reasonable ratio is fit to southern paddy growth
Short root among the present invention---the efficient double cropping of rice of slow release type special-purpose fertile nitrogen, phosphorus, potassium nutrition content and join the ratio of executing and design according to southern rice variety, promptly per 500 kilograms of long-grained nonglutinous rices need absorbed nitrogen (N), phosphorus (P
2O
5), potassium (K
2O) be respectively 10.5-13.5 kilogram, 4.8-5.2 kilogram, 14-16 kilogram, the ratio of nitrogen, phosphorus, potassium is roughly 16-18:8-10:18-20, is fit to southern double cropping of rice growth.
6, obvious effect of increasing production, utilization rate of fertilizer height, economic benefit height
Short root among the present invention---the special-purpose fertilizer of the efficient double cropping of rice of slow release type is compared with conventional split application and the special-purpose fertilizer of common rice, can effectively improve grain yield and the utilization rate of fertilizer of paddy rice.The field experiment result of 3 years different zones shows, fertilizer of the present invention is than conventional split application and the special-purpose fertile volume increase 9.09%-14.04% of common rice, its nitrogen, phosphorus and potassium nutrition absorption rate are respectively than conventional split application and special-purpose fertile 7.38%-13.45%, 5.1%-10.96% and the 4.96%-13.37% of improving of common rice.
Embodiment
Prepare embodiment voluntarily:
Embodiment 1
The preparation of composite synergist: 100 kilograms by weight, take by weighing 3.5 kilograms of boraxs; 2.3 kilograms of quinhydrones; 1.2 kilograms of Dyhard RU 100s; 35 kilograms of siliceous fertilizers; 11.5 kilograms of poly aspartic acids; 35 kilograms of humic acidss; 11.5 kilograms in the plain activator of phosphorus, mixing gets final product in pony mixer.
Short root---the preparation of slow release type concentrated fertilizer: get nitrogenous fertilizer, phosphate fertilizer and potash fertilizer by weight and amount to 100 kilograms of quantities of goods produced, composite synergist 8 – that take by weighing 18 kilograms in nitrogenous fertilizer (in pure N) and prepared mix stirring for 10 kilograms in stirrer, as be granular urea, making composite synergist evenly coat urea surface gets final product, approximately 3-5 minute, leave standstill then promptly to get about 10 minutes and urge root-slow release type high-efficiency nitrogen fertilizer, with phosphate fertilizer (with P
2O
5Meter) 8 kilograms and potash fertilizer are (with K
2The O meter) 20 kilograms add 3-5 minute fertilizer that gets product of continuation mixing in the stirrer simultaneously.During use, behind the early rice soaked field and transplant between early stage the disposable rice field that applies of this fertilizer, amount of application is 40-45 kilogram/mu.
Embodiment 2
The preparation of composite synergist: 100 kilograms by weight, take by weighing 3.5 kilograms of boraxs; 2.3 kilograms of quinhydrones; 1.2 kilograms of Dyhard RU 100s; 35 kilograms of siliceous fertilizers; 11.5 kilograms of poly aspartic acids; 35 kilograms of humic acidss; 11.5 kilograms in the plain activator of phosphorus, mixing gets final product in pony mixer.
Short root---the preparation of slow release type concentrated fertilizer: get nitrogenous fertilizer, phosphate fertilizer and potash fertilizer by weight and amount to 100 kilograms of quantities of goods produced, composite synergist 10 – that take by weighing 18 kilograms in nitrogenous fertilizer (in pure N) and prepared mix stirring for 12 kilograms in stirrer, as be granular urea, making composite synergist evenly coat urea surface gets final product, approximately 3-5 minute, leave standstill then promptly to get about 10 minutes and urge root-slow release type high-efficiency nitrogen fertilizer, with phosphate fertilizer (with P
2O
5Meter) 8 kilograms, potash fertilizer are (with K
2The O meter) 20 kilograms add 3-5 minute fertilizer that gets product of continuation mixing in the stirrer simultaneously.During use, behind the late rice soaked field and transplant between early stage the disposable rice field that applies of this fertilizer, amount of application is 45-50 kilogram/mu.
Enterprise's production example:
Embodiment 3
The preparation of composite synergist: 100 kilograms by weight, take by weighing 3.5 kilograms of boraxs; 2.3 kilograms of quinhydrones; 1.2 kilograms of Dyhard RU 100s; 35 kilograms of siliceous fertilizers; 11.5 kilograms of poly aspartic acids; 35 kilograms of humic acidss; 11.5 kilograms in the plain activator of phosphorus, mixing gets final product in pony mixer.
Short root---the preparation of slow release type concentrated fertilizer: get nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, binding agent and fill material by weight and amount to 100 kilograms of quantities of goods produced, for particulate state or lumpy material, needing is Powdered in crusher for crushing in advance, composite synergist 8 – that take by weighing 18 kilograms in Powdered nitrogenous fertilizer (in pure N) and prepared mix stirring about 5-7 minute for 10 kilograms in stirrer, the phosphate fertilizer after will pulverizing again is (with P
2O
5Meter) 8 kilograms, potash fertilizer are (with K
2O meter) 20 kilograms, small amount of binder and filler add simultaneously and continue in the stirrer to mix 3-5 minute.Enter granulation in the tablets press by travelling belt then, the fertilizer behind the granulating sieves by dry, and fertilizer gets product.During use, behind the early rice soaked field and transplant between early stage the disposable rice field that applies of this fertilizer, amount of application is 40-45 kilogram/mu.
Embodiment 4
The preparation of composite synergist: 100 kilograms by weight, take by weighing 3.5 kilograms of boraxs; 2.3 kilograms of quinhydrones; 1.2 kilograms of Dyhard RU 100s; 35 kilograms of siliceous fertilizers; 11.5 kilograms of poly aspartic acids; 35 kilograms of humic acidss; 11.5 kilograms in the plain activator of phosphorus, mixing gets final product in pony mixer.
Short root---the preparation of slow release type concentrated fertilizer: get nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, binding agent and fill material by weight and amount to 100 kilograms of quantities of goods produced, for particulate state or lumpy material, needing is Powdered in crusher for crushing in advance, composite synergist 10 – that take by weighing 18 kilograms in Powdered nitrogenous fertilizer (in pure N) and prepared mix stirring about 5-7 minute for 12 kilograms in stirrer, the phosphate fertilizer after will pulverizing again is (with P
2O
5Meter) 8 kilograms, potash fertilizer are (with K
2O meter) 20 kilograms, small amount of binder and filler add simultaneously and continue in the stirrer to mix 3-5 minute.Enter granulation in the tablets press by travelling belt then, the fertilizer behind the granulating sieves by dry, and fertilizer gets product.During use, behind the late rice soaked field and transplant between early stage the disposable rice field that applies of this fertilizer, amount of application is 45-50 kilogram/mu.
Application effect:
The rice field test design: test is divided in the equal nutrient content condition and not to be applied fertilizer, conventional split application, special-purpose fertile, the short root of common rice---special-purpose fertile 4 processing of the efficient double cropping of rice of slow release type, and each is handled and repeats 3 times, totally 12 sub-districts, and the sub-district area is 30m
2, district's group is arranged at random, and separate with ridge the minizone, independent irrigation and drainage, each sub-district all adopts optimum moisture regulation technology to carry out production management.Take a sample species test and measure straw and the paddy actual output of ripening stage, each sub-district singles, singly receive, single meter produces.Excellent 458 for gold for the rice varieties early rice of trying the water, the late rice kind is 926, is the red soil rice soil for examination soil.
Rate of fertilizer application and method: special-purpose fertilizer of common rice and short root---the special-purpose fertile amount of application of the efficient double cropping of rice of slow release type is 40 kilograms/mu in early rice, late rice is 50 kilograms/mu, and above-mentioned two kinds of fertilizer all are once to apply as base manure behind the paddy rice dry field and between transplanting in earlier stage.Conventional split application, the early rice amount of application is 16 kilograms/mu in urea, 21 kilograms/mu of calcium superphosphate, 14 kilograms/mu in Repone K, the late rice amount of application is 20 kilograms/mu in urea, 25 kilograms/mu of calcium superphosphate, 17 kilograms/mu in Repone K, wherein phosphate fertilizer and potash fertilizer do that base manure is disposable to apply, nitrogenous fertilizer is 50% to make base manure, 25% makes tillering fertilizer, and 25% makes ear differentiation fertilizer, divides to apply for three times.
Test-results: table 1 is early rice seed and stalk output three annual means, the result shows: short root---the special-purpose fertilizer of the special-purpose fertile rate ratio common rice of the efficient double cropping of rice of slow release type has improved 12.68%, improved 9.09% than conventional split application, and all reached the significant difference level.Short root---the special-purpose fertile plant recovery of nutrient of handling of the efficient double cropping of rice of slow release type also all is significantly increased than special-purpose fertilizer of common rice and conventional split application, and wherein nitrogen utilization efficiency improves 11.57% and 7.38% respectively; The plain utilization ratio of phosphorus improves 7.79% and 5.1% respectively; The potassium utilization rate improves 9.72% and 4.96% respectively.
Table 2 late rice seed and stalk output three annual means, the result shows: short root---the special-purpose fertilizer of the special-purpose fertile rate ratio common rice of handling of the efficient double cropping of rice of slow release type has improved 14.04%, improved 10.67% than conventional split application, and all reached the significant difference level.Short root---the special-purpose fertile plant recovery of nutrient of handling of the efficient double cropping of rice of slow release type also all is significantly increased than special-purpose fertilizer of common rice and conventional split application, and wherein nitrogen utilization efficiency improves 13.45% and 8.71% respectively; The plain utilization ratio of phosphorus improves 10.96% and 8.35% respectively; The potassium utilization rate improves 13.37% and 11.2% respectively.
Claims (6)
1. a short root---the efficient double cropping of rice of slow release type is special-purpose fertile, it is characterized in that in nitrogenous fertilizer, adding composite synergist, by in fertilizer, adding a kind of composite synergist, reach and promote the rice root growth and delay fertilizer nutrient to discharge collaborative carrying out, described composite synergist, its concrete prescription is: borax (B) 3.4%-3.8% by weight; Quinhydrones (HQ) 2%-2.5%; Dyhard RU 100 (DCD) 0.9%-1.4%; Siliceous fertilizer (SiO
2) 30%-36%; Poly aspartic acid (PASP) 9%-14%; Humic acids (HA) 31%-38%; The plain activator 9%-12% of phosphorus, mixing gets final product.
2. a kind of short root as claimed in claim 1---the efficient double cropping of rice of slow release type is special-purpose fertile, it is characterized in that described composite synergist: borax (B) 3.5% by weight; Quinhydrones (HQ) 2.3%; Dyhard RU 100 (DCD) 1.2%; Siliceous fertilizer (SiO
2) 35%; Poly aspartic acid (PASP) 11.5%; Humic acids (HA) 35%; The plain activator 11.5% of phosphorus, mixing gets final product.
3. short root---the special-purpose fertile preparation method of the efficient double cropping of rice of slow release type, it is characterized in that taking by weighing a certain amount of nitrogenous fertilizer by fertilizer formula mixes stirring 3-5 minute with the composite synergist that has prepared in stirrer, as be granular urea, making composite synergist evenly coat urea surface gets final product, leave standstill then promptly to get about 10 minutes and urge root-slow release type high-efficiency nitrogen fertilizer, the phosphate fertilizer and the potash fertilizer that will weigh up by fertilizer formula in advance adds 3-5 minute fertilizer that gets product of continuation mixing in the stirrer simultaneously again.
4. as a kind of short root as described in the claim 3---the special-purpose fertile preparation method of the efficient double cropping of rice of slow release type; it is characterized in that taking by weighing a certain amount of Powdered nitrogenous fertilizer by fertilizer formula mixes stirring 5-7 minute with the composite synergist that has prepared in stirrer; continue to mix 3-5 minute in the Powdered phosphate fertilizer that will weigh up by fertilizer formula in advance, potash fertilizer, little fertilizer and other filler adding stirrer again; enter granulation in the tablets press by travelling belt then; fertilizer behind the granulating is by dry; screening, fertilizer gets product.
5. a kind of short root as claimed in claim 3---the special-purpose fertile preparation method of the efficient double cropping of rice of slow release type is characterized in that described nitrogenous fertilizer is one or more in ammonium chloride, ammonium sulfate, ammonium nitrate, urea, monoammonium phosphate, the diammonium phosphate; Phosphate fertilizer is one or more in calcium superphosphate, fused(calcium magnesium)phosphate, monoammonium phosphate, the diammonium phosphate; Potash fertilizer is vitriolate of tartar or Repone K.
6. a kind of short root as claimed in claim 3---the special-purpose fertile preparation method of the efficient double cropping of rice of slow release type is characterized in that the ratio of described npk nutrient prescription is N:P
2O
5: K
2O=16-18:8-10:18-20, its optimum formula ratio is 18:8:20.
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| CN105111021A (en) * | 2015-08-27 | 2015-12-02 | 中国科学院南京土壤研究所 | Special rice fertilizer with both soil improvement and fertilizer efficiency functions for coastal saline soil and preparation method and application of special rice fertilizer |
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| CN102491829B (en) * | 2011-11-15 | 2013-11-06 | 湖南大方农化有限公司 | Nitrogen fertilizer synergist composition |
| CN102491829A (en) * | 2011-11-15 | 2012-06-13 | 湖南大方农化有限公司 | Nitrogen fertilizer synergist composition |
| CN102491844A (en) * | 2011-12-08 | 2012-06-13 | 宁夏农林科学院 | Paddy rice cleaner production slow release fertilizer and production method thereof |
| CN102531777A (en) * | 2011-12-29 | 2012-07-04 | 广西新方向化学工业有限公司 | Long-acting alkaline nitrogenous fertilizer and production method thereof |
| CN102617250A (en) * | 2012-04-12 | 2012-08-01 | 广西新方向化学工业有限公司 | Novel long-acting alkaline compound fertilizer and preparation method thereof |
| CN102603432A (en) * | 2012-04-19 | 2012-07-25 | 广西新方向化学工业有限公司 | Nitrogen fertilizer slow release synergist |
| CN102838431A (en) * | 2012-08-23 | 2012-12-26 | 中国水稻研究所 | Ecological fertilizer special for rice and application process of ecological fertilizer |
| CN103011986A (en) * | 2013-01-11 | 2013-04-03 | 杨万善 | Compound calcium magnesium phosphate fertilizer |
| CN103011986B (en) * | 2013-01-11 | 2014-10-15 | 杨万善 | Compound calcium magnesium phosphate fertilizer |
| CN103183566A (en) * | 2013-03-29 | 2013-07-03 | 烟台斯维德生物技术有限公司 | Preparation method of environmental-friendly fertilizer |
| CN103396239A (en) * | 2013-08-07 | 2013-11-20 | 黑龙江龙化肥业有限公司 | Compound fertilizer sustained-release synergist, preparation method thereof, and compound fertilizer |
| CN105111021A (en) * | 2015-08-27 | 2015-12-02 | 中国科学院南京土壤研究所 | Special rice fertilizer with both soil improvement and fertilizer efficiency functions for coastal saline soil and preparation method and application of special rice fertilizer |
| CN105111021B (en) * | 2015-08-27 | 2018-12-04 | 中国科学院南京土壤研究所 | It has both and improves the soil with the beach saline land paddy rice-dedicated fertilizer of fertilizer efficiency function and its preparation method and application |
| CN108794281A (en) * | 2018-06-22 | 2018-11-13 | 湖南农业大学 | Disposable deep placement complex fertilizer of late rice and preparation method thereof |
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Application publication date: 20110817 |