CN103044153A - Special slow-release fertilizer taking biomass granular charcoal as matrix for hot pepper and preparation method for same - Google Patents
Special slow-release fertilizer taking biomass granular charcoal as matrix for hot pepper and preparation method for same Download PDFInfo
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- CN103044153A CN103044153A CN2013100202352A CN201310020235A CN103044153A CN 103044153 A CN103044153 A CN 103044153A CN 2013100202352 A CN2013100202352 A CN 2013100202352A CN 201310020235 A CN201310020235 A CN 201310020235A CN 103044153 A CN103044153 A CN 103044153A
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Abstract
The invention discloses a special slow-release fertilizer taking biomass granular charcoal as a matrix for hot pepper and a preparation method for the same. The preparation method comprises the following steps of: taking the granular charcoal which is prepared from the agricultural waste biomasses of corncobs, peanut shells, rice hulls, edible fungi matrix and the like as a matrix material, compounding the matrix material with nitrogen, phosphorus, potassium and other nutrient elements which are necessary to the growth and development of hot pepper by virtue of the microporous property and the strong adsorption capacity of the matrix material, and then preparing the granular biomass charcoal-matrix special slow-release fertilizer for hot pepper. The biomass granular charcoal used in the preparation method disclosed by the invention is the black biomass granular charcoal granules formed by the agricultural waste biomasses after incomplete combustion in a low-oxygen condition, has various characteristics similar to the characteristics of soil humus, as well as is very strong in the capacities of adsorbing and keeping nutrients and water, capable of stimulating the growth of crops, and good in slow-release performance for nitrogen, phosphorus and potassium; and the slow-release fertilizer prepared from the biomass granular charcoal can effectively meet the need of hot pepper to nutrients in the whole growing period in case of being applied once, and has the characteristics of enhancing soil fertility, improving soil structure, being efficient and environment-friendly and the like, thus being beneficial to large-scale popularization and application in production for hot pepper.
Description
Technical field
The invention belongs to the agricultural fertilizer production technical field, particularly a kind of capsicum take the biological particles charcoal as matrix is slow-release fertilizer dedicated and preparation method thereof.
Background technology
The capsicum main root is undeveloped, and the root amount is few, in the topsoil that root mass is distributed in mostly, and a little less than the root regeneration ability, not anti-dense fertilizer.Nitrogenous fertilizer in the vegetative period factor such as too much or not enough also can directly affect nourish and grow balance with reproductive growth of pepper plant, and then causes easily the phenomenon such as fallen flowers to occur, and is very large to yield effect.Therefore, scientific and reasonable carrying out wanted in the capsicum fertilising.The fertilization principle of capsicum is many organic fertilizers and topdresses, and adopts Shaoshi method repeatedly, must guard against once to apply a large amount of chemical fertilizer, especially nitrogenous fertilizer.At present capsicum fertilising mainly is Common compound fertilizer and urea, and they all are quick acting fertilizers, and dissolving is fast in soil, if applied once too much not only causes crop alimentary superfluous, even " high pin seedling ", " burning seedling " phenomenon appear, and soil salts density is raise, hinder root growth.In capsicum produced, because improper fertilization usually causes capsicum excessive growth or fruit drop, cause gathering evening or output were lower, have had a strong impact on economic return.
The method one that addresses these problems in fertilising at present is the consumption that increases fertilizer, the 2nd, and chemical fertilizer application is taked on a small quantity repeatedly.Along with the continuous expansion of pepper planting area, fertilizer can not be satisfied the demand, and chemical fertilizer is repeatedly used and had a following deficiency: the one, increased peasant's labour intensity and recruitment cost; The 2nd, the root regeneration of capsicum is indifferent, and the ditching fertilising can be cut off a large amount of root systems frequently, and impact is to the absorption of nutrient.Adopt the long-acting or slow special release fertilizer single fertilization of capsicum more and more to be subject to peasant's welcome.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, to grow necessary nitrogen, phosphorus, potassium and other nutritive elements compound with chili growth, prepare slow-release fertilizer dedicated method and the application of particulate biomass charcoal base capsicum, can satisfy better the needs that capsicum produces.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of capsicum 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 capsicum 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 3-5%; Contain effective potassium (K2O) amount and be 14-16%.
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 capsicum nutrient uptake feature, described capsicum 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 capsicum:
200-300 kg/tonne of biological particles carbon particle
Urea 220-250 kg/tonne
Diammonium phosphate 50-80 kg/tonne
Fused(calcium magnesium)phosphate 50-90 kg/tonne
Vitriolate of tartar 280-320 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 capsicum 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 capsicum 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 180-200 kg/acre, applies the planting furrow bottom before pepper seedling is transplanted.
High efficiency charcoal base capsicum 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 capsicum 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 capsicum produces.
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 capsicum 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, the slowly-releasing drought and water shortage is grown the impact that produces on chili growth to a certain extent again.
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.Capsicum is the fertile crop of happiness, the arable land nitrogen stress of China about 90%, and 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 capsicum 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 capsicum 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 3-5%; Contain effective potassium (K2O) amount and be 14-16%.
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 capsicum nutrient uptake feature, the capsicum 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 capsicum:
200-300 kg/tonne of biological particles carbon particle
Urea 220-250 kg/tonne
Diammonium phosphate 50-80 kg/tonne
Fused(calcium magnesium)phosphate 50-90 kg/tonne
Vitriolate of tartar 280-320 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 capsicum.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 capsicum take the biological particles charcoal as matrix comprises various component mixing granulations, particle diameter 3. 35-5.0mm.
Capsicum 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 180-200 kg/acre, applies the planting furrow bottom before pepper seedling is transplanted, and exempts to topdress.
Embodiment 1: the preparation technology that the capsicum 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 64.4%, 35.6% 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 29.62%.
(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 70.7%, 22. 8% and 6.5% is mixed; carry out the pressure granulation with KP-300 type organic fertilizer granulator; make nitrogenous (N) amount 12.73%, contain available phosphorus (P2O5) amount and be 32.52% 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 70.2%, 23. 5% 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 10.53% 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 67.8%, 21.6%, 6.0%, 2.3%, 2.3% is mixed; carry out the pressure granulation with KP-300 type organic fertilizer granulator, make potassium, zinc, the boron composite fertilizer of potassium content 33. 90%.
Further compound: the finished product of (1), (2), (3) and (4) in 36.5%, 9.2%, 10.0% and 44.3% 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 capsicum 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 capsicum 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 3-5%; Contain effective potassium (K2O) amount and be 14-16%;
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 capsicum 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 capsicum:
200-300 kg/tonne of biological particles carbon particle
Urea 220-250 kg/tonne
Diammonium phosphate 50-80 kg/tonne
Fused(calcium magnesium)phosphate 50-90 kg/tonne
Vitriolate of tartar 280-320 kg/tonne
Zinc sulfate 8-12 kg/tonne
Borax 8-12 kg/tonne.
3. a kind of capsicum 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 capsicum 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 capsicum 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 capsicum 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 capsicum 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 180-200 kg/acre, applies the planting furrow bottom before pepper seedling is transplanted.
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| CN103708949A (en) * | 2013-12-16 | 2014-04-09 | 天津丰润园精细化工科技有限公司 | Special sustained-release organic fertilizer for colored pepper and hot pepper, and preparation method thereof |
| CN103951531A (en) * | 2014-04-03 | 2014-07-30 | 浙江理工大学 | Environmentally friendly charcoal-based water-retention slow-release fertilizer, preparation method and application thereof |
| CN104072236A (en) * | 2014-06-25 | 2014-10-01 | 周瑛 | Special-purpose chili chemical fertilizer |
| CN104961534A (en) * | 2015-07-29 | 2015-10-07 | 武汉领潮生物科技有限公司 | Special organic fertilizer for chilies and preparation method thereof |
| CN105439761A (en) * | 2015-12-23 | 2016-03-30 | 李春燕 | Composite fertilizer with yield increase effect for capsicums |
| CN106278696A (en) * | 2016-07-22 | 2017-01-04 | 贵州省土壤肥料研究所 | A kind of special charcoal slow-release fertilizer of Fructus Capsici and preparation method thereof |
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| CN103664358A (en) * | 2013-11-27 | 2014-03-26 | 青岛天人环境股份有限公司 | Biogas slurry curing organic fertilizer for solanberry yield increase and preparation method thereof |
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| CN106278696A (en) * | 2016-07-22 | 2017-01-04 | 贵州省土壤肥料研究所 | A kind of special charcoal slow-release fertilizer of Fructus Capsici and preparation method thereof |
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| CN107602253B (en) * | 2017-10-27 | 2020-07-31 | 贵州省土壤肥料研究所 | Fertilizer composition for hot peppers and application method thereof |
| CN108728142A (en) * | 2018-05-05 | 2018-11-02 | 贵州省蚕业研究所 | A kind of green pepper charcoal and preparation method thereof inhibiting pepper seedling excessive growth |
| CN109293432A (en) * | 2018-10-31 | 2019-02-01 | 西南大学 | A kind of capsicum substrate seedling special fertilizer and application method |
| 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 |