CN103044152A - Special slow-release fertilizer for cauliflowers with biomass particle carbon as matrix and a preparation method of slow-release fertilizer - Google Patents
Special slow-release fertilizer for cauliflowers with biomass particle carbon as matrix and a preparation method of slow-release fertilizer Download PDFInfo
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- CN103044152A CN103044152A CN2013100201947A CN201310020194A CN103044152A CN 103044152 A CN103044152 A CN 103044152A CN 2013100201947 A CN2013100201947 A CN 2013100201947A CN 201310020194 A CN201310020194 A CN 201310020194A CN 103044152 A CN103044152 A CN 103044152A
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Abstract
The invention discloses a special slow-release fertilizer for cauliflowers with biomass particle carbon as a matrix and a preparation method of the slow-release fertilizer. The particle carbon prepared from agricultural waste biomasses such as corncobs, peanut shells, rice husks and edible fungus matrixes is taken the matrix material, and is compounded with nitrogen, phosphorus and potassium and other nutrient elements necessary for growth and development of the cauliflowers on the basis of micropores and high adsorption capacity of the particle carbon, thus obtaining the special slow-release fertilizer based on the granular biomass carbon of the cauliflowers. The biomass particle carbon adopted by the special slow-release fertilizer is black biomass carbon particles prepared from the agricultural waste biomasses which are incompletely combusted under a low-oxygen condition, has a plurality of characteristics similar to those of soil humus, has high capacities of adsorption and maintenance of nutrients and moisture, also can simulate crop growth, and has good slow release performance to the nitrogen, phosphorus and potassium. The slow-release fertilizer prepared from the particle carbon can effectively supply nutrients required by the cauliflowers during an entire growth period after being applied once, and has the characteristics of improving land capability and a soil structure, being efficient and environment-friendly and the like, thereby facilitating large-scale popularization and application of the fertilizer in production of the cauliflowers.
Description
Technical field
The invention belongs to the agricultural fertilizer production technical field, particularly a kind of Cauliflower take the biological particles charcoal as matrix is slow-release fertilizer dedicated and preparation method thereof.
Background technology
In Cauliflower was produced, the rational application of fertilizer was to guarantee the important measures of yield and quality.Cauliflower is take bouquet as the results purpose, has stronger aerial growth advantage, and therefore, fertilizer sucting ability is stronger.Wherein requirement is maximum is that nitrogen and potassium, particularly leafage are grown and needed vigorous period nitrogenous fertilizer more, and the Curd formation phase needs phosphorus many.Before buddingging, guarantee the ample supply of phosphorus, potassium nutrition.The fertilizer that present Cauliflower is used mainly is the quick acting fertilizers such as urea, composite fertilizer, and they dissolve in soil soon, and soil solution concentration is improved rapidly, so quick acting fertilizer once can not be used too much.In the breeding cycle of cauliflower, except using base manure, need topdress 3～4 times.The general employing of present fertilizing type is spread fertilizer over the fields behind the earth's surface and is watered, and this can produce the problem of two aspects, and the one, the easy drip washing of nitrogenous fertilizer to such an extent as to can not absorb, not only causes waste to main root layer, also may polluted underground water.The 2nd, to the less fertilizer element of movability such as phosphorus, potassium, fertilizer is executed at soil surface, and is far away apart from the main root zone of cauliflower, also is unfavorable for absorbing.
Slow release fertilizer claim again slow-release fertilizer (
Slow available fertilizers) or release and release control fertilizer (
Control release fertilizers), compound release rate in the soil control slow or that nutrient releasing speed can get to a certain extent that contains nutrient in its fertilizer continues to absorb for crop.Use slow release fertilizer can reduce the particularly loss of nitrogen in soil of fertilizer nutrient, improve utilization rate of fertilizer, reduce fertilising operation number of times, save labour and expense, and can alleviate the pollution that excessive fertilization causes for environment.Present slow release fertilizer both domestic and external generally all is to reach the purpose that prolongs fertilizer efficiency by physical methods such as coating, parcel, packing, coatings, such as the coated fertilizer of bag Thio Urea, polymer coated fertilizer, fertilizer bag fertilizer, coated fertilizer and with Quick-dissolving fertilizer and the mixing formed Wrapped fertilizer of rubber latex etc.The slow controlled-release technology that also has employing physics and biochemical method to combine is produced slow release fertilizer.The general cost of these fertilizer is higher, and seldom possesses hole and adsorptive power, more without increasing soil fertility, improving the characteristics such as Soil structure.
On the other hand, at present China has become one of country of agriculture waste biomass generation maximum in the world, it is reported, the gross annual output of all kinds of agricultural crop straws of China amount of giving birth to reaches more than 700,000,000 tons, wherein straw is 2.3 hundred million tons, 2.7 hundred million tons of maize straws, 100,000,000 tons of peanut, beans and autumn coarse cereals stalks.The easiest way of Treating straw is directly to burn down on the farm at present.Burning season, once repeatedly occuring to be forced to close event because smog all over the sky causes flight to land with motorway, both wasting a large amount of precious resources, bringing severe contamination to environment again.Therefore agriculture waste biomass outlet has become a great problem that solution is badly in need of in government department.Particularly along with the raising of level of agricultural production development and life of farmers level, fewer and feweri to utilizing of original agriculture waste biomass as fuel and fertilizer, agricultural wastes are more and more.
Summary of the invention
The purpose of this invention is to provide a kind of take the standby particle charcoal of the agriculture waste biomass-makings such as corn cob, Pericarppium arachidis hypogaeae, rice husk, stalk, edible fungi substrate as substrate material, utilize its many micropores, strong adsorptive power, compound with grow necessary nitrogen, phosphorus, potassium and other nutritive elements of Cauliflower, prepare slow-release fertilizer dedicated method and the application of particulate biomass charcoal base Cauliflower, can satisfy better the needs that Cauliflower is produced.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of Cauliflower take the biological particles charcoal as matrix is slow-release fertilizer dedicated, contains
1. biological particles charcoal; With
2. binding agent; With
3. one or more in nitrogenous fertilizer, phosphate fertilizer, potash fertilizer and the trace element fertilizer.
Content by weight percentage:
The content of biological particles charcoal is 10-50%;
The slow-release fertilizer dedicated total nutrient content of described Cauliflower take the biological particles charcoal as matrix is 28-34%; Described total nutrient refer to nitrogen (N) or/and available phosphorus (P2O5) or/and effective potassium (K2O), wherein nitrogenous (N) amount is 11-13%; Contain available phosphorus (P2O5) amount and be 4-6%; Contain effective potassium (K2O) amount and be 13-15%.
Described biological particles charcoal is one or more in corn cob granule charcoal, rice husk particle charcoal, peanut shell granular charcoal, stalk particle charcoal, the mushroom dish particle charcoal.
Described nitrogenous fertilizer is one or more in urea, ammonium nitrate, ammonium sulfate, ammonium chloride and any other formulation fertilizer containing nitrogen.
Described phosphate fertilizer is monoammonium phosphate, diammonium phosphate, calcium superphosphate, fused(calcium magnesium)phosphate, nitrophosphate fertilizer and any one or more that contain in the phosphatic manure.
Described potash fertilizer is that vitriolate of tartar, Repone K, potassium primary phosphate and any other contain in the potassic fertilizer one or more.
Described trace element fertilizer is one or more in the trace element fertilizers such as boron, zinc, manganese, iron, copper or molybdenum.
Biological particles charcoal among the present invention is preferably and adopts anoxic destructive distillation decomposition technique production agriculture waste biological particles charcoal under the inferior hot conditions.Described agriculture waste biomass can be corn cob, rice husk, Pericarppium arachidis hypogaeae, stalk, edible fungi substrate etc., but are not limited to this.
Described binding agent is that wilkinite is or/and clay.
In order to play better slow release effect, according to the Cauliflower nutrient uptake feature, described Cauliflower take the biological particles charcoal as matrix is slow-release fertilizer dedicated, and to contain simultaneously following various composition the most effective:
1) biological particles charcoal; With
2) binding agent; With
3) urea, diammonium phosphate, fused(calcium magnesium)phosphate, vitriolate of tartar, zinc sulfate and borax.
Each component content is slow-release fertilizer dedicated to produce 1 ton of charcoal base Cauliflower:
200-300 kg/tonne of biological particles carbon particle
Urea 210-240 kg/tonne
Diammonium phosphate 70-110 kg/tonne
Fused(calcium magnesium)phosphate 50-60 kg/tonne
Vitriolate of tartar 260-300 kg/tonne
Zinc sulfate 8-12 kg/tonne
Borax 8-12 kg/tonne
Described biological particles carbon particle granularity 80-100 orders, described urea contains N:46%, described diammonium phosphate contains N 18%, P2O5 46%, described fused(calcium magnesium)phosphate contains P2O5:15%, described vitriolate of tartar contains K2O 50%, described zinc sulfate contains zinc 20%～23%, described borax boracic 11%.
Also can further contain other little fertilizer, described other little fertilizer is selected from one or more in manganous sulfate, ammonium molybdate, ferrous sulfate, the copper sulfate.Other little fertile total content is preferably 0.5-1%.The purity of various little fertilizer is preferably more than 90%.
The present invention also further provides the Cauliflower take the biological particles charcoal as matrix slow-release fertilizer dedicated preparation technology, comprises with various component mixing granulations particle diameter 3. 35-5.0mm.
The present invention also further provides the Cauliflower take the biological particles charcoal as matrix slow-release fertilizer dedicated purposes, and it is used as disposable base fertilizer, and preferred amount of application is 120-150 kg/acre, applies the planting furrow bottom before Cauliflower is transplanted.
High efficiency charcoal base Cauliflower provided by the invention is slow-release fertilizer dedicated, is the durable composite fertilizer take organic biological particles charcoal as substrate material.The biological particles charcoal that the present invention uses is the black biological particles charcoal particle (carbon black) that the agriculture waste biomass form behind the incomplete combustion under hypoxia condition, multifrequency nature with similar agron (acid), its absorption and keep nutrient and moisture very capable, can also stimulate plant growth, sustained release performance to nitrogen phosphorus potassium is good, the slow-release fertilizer applied once for preparing thus, can effectively supply Cauliflower whole vegetative period the demand to nutrient, utilization rate of fertilizer is high, and has an increase soil fertility, improve the characteristics such as Soil structure and high-efficiency environment friendly, be conducive to large-scale promotion application in Cauliflower is produced.
Compare with existing compound manure, the present invention has the following advantages:
1, had good sustained release effect, utilization rate of fertilizer is high.The charcoal base Cauliflower that the present invention produces is slow-release fertilizer dedicated to have extremely strong adsorptivity, water-retentivity and heating property of extinction, had good sustained release effect, and the fertilizer nutrient utilization ratio is high.After being manured into soil, not only can hold fertilizer slow-release, reduce the fertilizer leaching loss, and heat the water conservation district owing to around each carbon granule, can form a little extinction, both be conducive to increase ground temperature, again to a certain extent slowly-releasing drought and water shortage impact that Cauliflower is grown and produces.
2, production technique is simple, and raw material is easy to get.The used substrate material of the present invention is the biological particles charcoals such as corn cob, Pericarppium arachidis hypogaeae, rice husk, stalk, edible fungi substrate, and raw material comes from the abandoned biomass of agriculture production, and is with low cost, inexhaustible; Equipment used is pulverizer commonly used, simple and easy charring furnace, agitator, granulating disc etc., and production unit is simple, and technical maturity is easy to industrialization.As long as improve slightly, existing fertilizer plant all can directly put into production.
3, environmentally friendly, safety and environmental protection.The used substrate material of the present invention itself is exactly utilization of waste material, and the needing no outside energy does not produce " three wastes " and pollutes, the energy-conservation and environmental protection of production process; The plant-derived organism of biological particles charcoal, its main component are charcoal element more than 90%, can natural decomposition in soil, fully noresidue, thereby in use to environment without any pollution, have concurrently simultaneously the improvement Soil structure long-acting characteristic, be conducive to the agricultural Sustainable development.
4, potentiality to be exploited is huge.Cauliflower is the fertile crop of happiness, the arable land nitrogen stress of China about 90%, about 30% arable land lacks phosphorus, about 25% arable land potassium deficiency, and soil compaction worsens and ubiquitous fertilizer loss is serious, the low problem of utilization ratio, becomes the important factor of this industry development of puzzlement.The present invention reaches loose, slowly-releasing, economy, environmental protection, increase soil fertility, improves the fertilizer efficiency texts as matrix by applying biological matter particle charcoal element, is a kind of revolutionary change of fertilizer industry.
Embodiment
Below by embodiment the present invention is further described specifically.
A kind of Cauliflower take the biological particles charcoal as matrix is slow-release fertilizer dedicated, comprises:
1. biological particles charcoal; With
2. binding agent; With
3. one or more in nitrogenous fertilizer, phosphate fertilizer, potash fertilizer and the trace element fertilizer.
By weight or weight percent content:
The content of biological particles charcoal is 10-50%.
The slow-release fertilizer dedicated total nutrient content of described Cauliflower take the biological particles charcoal as matrix is 28-34%, meets organic-inorganic composite fertilizer national standard.Described total nutrient refers to nitrogen (N) and available phosphorus (P2O5).Wherein nitrogenous (N) amount is 11-13%; Contain available phosphorus (P2O5) amount and be 4-6%; Contain effective potassium (K2O) amount and be 13-15%.
Described biological particles charcoal is one or more mixture of corn cob granule charcoal, rice husk particle charcoal, peanut shell granular charcoal, stalk particle charcoal or mushroom dish particle charcoal.
Described nitrogenous fertilizer is one or more in urea, ammonium nitrate, ammonium sulfate, ammonium chloride and any other formulation fertilizer containing nitrogen.
Described phosphate fertilizer is monoammonium phosphate, diammonium phosphate, calcium superphosphate, fused(calcium magnesium)phosphate, nitrophosphate fertilizer and any one or more that contain in the phosphatic manure.
Described potash fertilizer is that vitriolate of tartar, Repone K, potassium primary phosphate and any other contain in the potassic fertilizer one or more.
Described trace element fertilizer is one or more in the trace element fertilizers such as boron, zinc, manganese, iron, copper or molybdenum.
Biological particles charcoal among the present invention is preferably and adopts anoxic destructive distillation decomposition technique production agriculture waste biological particles charcoal under the inferior hot conditions.Described agriculture waste biomass can be corn cob, rice husk, Pericarppium arachidis hypogaeae, stalk, edible fungi substrate etc., but are not limited to this.
Described binding agent is that wilkinite is or/and clay.
In order to play better slow release effect, according to the Cauliflower nutrient uptake feature, the Cauliflower take the biological particles charcoal as matrix is slow-release fertilizer dedicated, and to contain simultaneously following various composition the most effective:
1) biological particles charcoal; With
2) binding agent; With
3) urea, diammonium phosphate, fused(calcium magnesium)phosphate, vitriolate of tartar, zinc sulfate and borax.
Each component content is slow-release fertilizer dedicated to produce 1 ton of charcoal base Cauliflower:
200-300 kg/tonne of biological particles carbon particle
Urea 210-240 kg/tonne
Diammonium phosphate 70-110 kg/tonne
Fused(calcium magnesium)phosphate 50-60 kg/tonne
Vitriolate of tartar 260-300 kg/tonne
Zinc sulfate 8-12 kg/tonne
Borax 8-12 kg/tonne
Described biological particles carbon particle granularity 80-100 orders, described urea contains N:46%, described diammonium phosphate contains N 18%, P2O5 46%, described fused(calcium magnesium)phosphate contains P2O5:15%, described vitriolate of tartar contains K2O 50%, described zinc sulfate contains zinc 20%～23%, described borax boracic 11%.
For the area or the field that lack trace element, can in this prescription, on purpose add other little fertilizer, described other little fertilizer is selected from one or more of manganous sulfate, ammonium molybdate, ferrous sulfate, copper sulfate.Other little fertilizer (manganous sulfate, ammonium molybdate, ferrous sulfate, copper sulfate etc.) total content is preferably 0. 5-1% in the special-purpose disposable base fertilizer of Cauliflower.The purity of various little fertilizer is preferably more than 90%.
Described urea, diammonium phosphate, fused(calcium magnesium)phosphate, vitriolate of tartar, zinc sulfate, borax are all available on market, and be all on sale at Agricultural Materials shop.
Described other little fertilizer such as manganous sulfate, ammonium molybdate, ferrous sulfate, copper sulfate etc. are all available on market, and are all on sale at Agricultural Materials shop.
The preferred granular urea of described urea (also being referred to as the urea powder).
The slow-release fertilizer dedicated preparation technology of described Cauliflower take the biological particles charcoal as matrix comprises various component mixing granulations, particle diameter 3. 35-5.0mm.
Cauliflower take the biological particles charcoal as matrix provided by the invention is slow-release fertilizer dedicated, uses simply, and it is used as disposable base fertilizer, and preferred amount of application is 120-150 kg/acre, applies the planting furrow bottom before Cauliflower is transplanted, and exempts to topdress.
Embodiment 1: the preparation technology that the Cauliflower take the biological particles charcoal as matrix is slow-release fertilizer dedicated
Mix with weight ratio or weight percent according to following step:
(1) nitrogenous (N) amount of getting is 46% granular urea; 80 purpose biological particles carbon particles; ratio in 61.3%, 38.7% is mixed; utilization is carried out dressing with the disc-type granulating machine (conventional machinery in the fertilizer preparation process) of heating function, makes the simple substance slow-release nitrogen fertilizer of nitrogenous (N) amount 28.20%.
(2) getting nitrogenous (N) amount is 18%; contain available phosphorus (P2O5) amount and be 46% diammonium phosphate powder, 80 purpose biological particles carbon particle and binding agents; ratio in 70.9%, 22. 6% and 6.5% is mixed; carry out the pressure granulation with KP-300 type organic fertilizer granulator; make nitrogenous (N) amount 12.76%, contain available phosphorus (P2O5) amount and be 32.61% compound nitrogen phosphate fertilizer.
(3) get that to contain available phosphorus (P2O5) amount be 15% fused(calcium magnesium)phosphate, 80 purpose biological particles carbon particle and binding agents; ratio in 70.5%, 23. 2% and 6.3% is mixed; carry out the pressure granulation with KP-300 type organic fertilizer granulator, make that to contain available phosphorus (P2O5) amount be 10.58% slow-release phosphate fertilizer.
(4) get that to contain effective potassium (K2O) amount be that 50% vitriolate of tartar, 80 purpose biological particles carbon particles, binding agent, zinc content are 23% zinc sulfate and boron fertilizer (Agricultural Materials shop is all available); ratio in 65.4%, 23.7%, 6.1%, 2.4%, 2.4% is mixed; carry out the pressure granulation with KP-300 type organic fertilizer granulator, make potassium, zinc, the boron composite fertilizer of potassium content 32. 70%.
Further compound: the finished product of (1), (2), (3) and (4) in 36.7%, 12.7%, 7.8% and 42.8% ratio compound, and are stirred with ZLC-300 type stirrer (conventional machinery in the fertilizer preparation process).
Also can further add 0.5% manganous sulfate and 0.5% copper sulfate, or add 1% ferrous sulfate, stir with ZLC-300 type stirrer (conventional machinery in the fertilizer preparation process).
Described binding agent is the Acidic Bentonite of PH 5.5-6.5.
Claims (7)
1. the Cauliflower take biological particles carbon as matrix is slow-release fertilizer dedicated, it is characterized in that containing:
1). the biological particles charcoal; With
2). binding agent; With
3). one or more in nitrogenous fertilizer, phosphate fertilizer, potash fertilizer and the trace element fertilizer;
Content by weight percentage:
The content of biological particles charcoal is 10-50%;
The slow-release fertilizer dedicated total nutrient content of described Cauliflower take the biological particles charcoal as matrix is 28-34%; Described total nutrient refer to nitrogen (N) or/and available phosphorus (P2O5) or/and effective potassium (K2O), wherein nitrogenous (N) amount is 11-13%; Contain available phosphorus (P2O5) amount and be 4-6%; Contain effective potassium (K2O) amount and be 13-15%;
Described biological particles charcoal is one or more in corn cob granule charcoal, rice husk particle charcoal, peanut shell granular charcoal, stalk particle charcoal, the mushroom dish particle charcoal;
Described nitrogenous fertilizer is one or more in urea, ammonium nitrate, ammonium sulfate, ammonium chloride and any other formulation fertilizer containing nitrogen;
Described phosphate fertilizer is monoammonium phosphate, diammonium phosphate, calcium superphosphate, fused(calcium magnesium)phosphate, nitrophosphate fertilizer and any one or more that contain in the phosphatic manure;
Described potash fertilizer is that vitriolate of tartar, Repone K, potassium primary phosphate and any other contain in the potassic fertilizer one or more;
Described trace element fertilizer is one or more in the trace element fertilizers such as boron, zinc, manganese, iron, copper or molybdenum;
Described binding agent is that wilkinite is or/and clay.
2. a kind of Cauliflower take biological particles carbon as matrix as claimed in claim 1 is slow-release fertilizer dedicated, it is characterized in that containing:
1) biological particles charcoal; With
2) binding agent; With
3) urea, diammonium phosphate, fused(calcium magnesium)phosphate, vitriolate of tartar, zinc sulfate and borax;
Each component content is slow-release fertilizer dedicated to produce 1 ton of charcoal base Cauliflower:
200-300 kg/tonne of biological particles carbon particle
Urea 210-240 kg/tonne
Diammonium phosphate 70-110 kg/tonne
Fused(calcium magnesium)phosphate 50-60 kg/tonne
Vitriolate of tartar 260-300 kg/tonne
Zinc sulfate 8-12 kg/tonne
Borax 8-12 kg/tonne.
3. a kind of Cauliflower take biological particles carbon as matrix as claimed in claim 1 or 2 is slow-release fertilizer dedicated, it is characterized in that described biological particles carbon particle granularity 80-100 orders, described urea contains N:46%, described diammonium phosphate contains N 18%, P2O5 46%, described fused(calcium magnesium)phosphate contains P2O5:15%, described vitriolate of tartar contains K2O 50%, and described zinc sulfate contains zinc 20%～23%, described borax boracic 11%.
4. a kind of Cauliflower take biological particles carbon as matrix as claimed in claim 1 or 2 is slow-release fertilizer dedicated, it is characterized in that also further containing other little fertilizer, described other little fertilizer is selected from one or more in manganous sulfate, ammonium molybdate, ferrous sulfate, the copper sulfate.
5. a kind of Cauliflower take biological particles carbon as matrix as claimed in claim 4 is slow-release fertilizer dedicated, it is characterized in that other little fertile total weight percent content is 0. 5-1%.
6. such as the slow-release fertilizer dedicated preparation technology of the arbitrary described a kind of Cauliflower take biological particles carbon as matrix of claim 1-5, it is characterized in that described various component mixing granulations, particle diameter 3. 35-5.0mm.
7. such as the slow-release fertilizer dedicated purposes of the arbitrary described a kind of Cauliflower take biological particles carbon as matrix of claim 1-6, it is characterized in that it is used as disposable base fertilizer, preferred amount of application is 120-150 kg/acre, applies the planting furrow bottom before Cauliflower is transplanted.
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| CN107417335A (en) * | 2017-09-21 | 2017-12-01 | 佛山市三水区嘉华化学研究院（普通合伙） | A kind of biological compound fertilizer for improving cauliflower quality |
| CN107683667A (en) * | 2017-07-28 | 2018-02-13 | 中国科学院南京土壤研究所 | A kind of plateau summer vegetable root area single-dose application method under under-film drip irrigation facility |
| CN107915550A (en) * | 2017-11-17 | 2018-04-17 | 定远县诚信种植专业合作社 | A kind of comprehensive cauliflower special fertilizer preparation method of nutrition |
| CN109956822A (en) * | 2019-04-04 | 2019-07-02 | 辽宁省农业科学院 | A kind of dust storm semiarid region agricultural land soil texture modifier |
| US11124461B2 (en) | 2019-07-04 | 2021-09-21 | Incitec Pivot Limited | Fertilizer |
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| CN102863286A (en) * | 2012-09-27 | 2013-01-09 | 上海孚祥生物科技有限公司 | Cabbage special use slow release fertilizer using biomass carbon granules as matrixes and preparation method of slow release fertilizer |
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| CN107683667A (en) * | 2017-07-28 | 2018-02-13 | 中国科学院南京土壤研究所 | A kind of plateau summer vegetable root area single-dose application method under under-film drip irrigation facility |
| CN107417335A (en) * | 2017-09-21 | 2017-12-01 | 佛山市三水区嘉华化学研究院（普通合伙） | A kind of biological compound fertilizer for improving cauliflower quality |
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| CN109956822A (en) * | 2019-04-04 | 2019-07-02 | 辽宁省农业科学院 | A kind of dust storm semiarid region agricultural land soil texture modifier |
| US11124461B2 (en) | 2019-07-04 | 2021-09-21 | Incitec Pivot Limited | Fertilizer |
| US11691929B2 (en) | 2019-07-04 | 2023-07-04 | Incitec Fertilizers Pty Limited | Fertiliser |
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Application publication date: 20130417 |