CN111345221A - Preparation method of slow release fertilizer aiming at difference of water retention performance of karst mountain land - Google Patents
Preparation method of slow release fertilizer aiming at difference of water retention performance of karst mountain land Download PDFInfo
- Publication number
- CN111345221A CN111345221A CN202010094187.1A CN202010094187A CN111345221A CN 111345221 A CN111345221 A CN 111345221A CN 202010094187 A CN202010094187 A CN 202010094187A CN 111345221 A CN111345221 A CN 111345221A
- Authority
- CN
- China
- Prior art keywords
- parts
- slow release
- powder
- release fertilizer
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
- A01G24/12—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material containing soil minerals
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
- A01G24/22—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing plant material
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/30—Growth substrates; Culture media; Apparatus or methods therefor based on or containing synthetic organic compounds
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/30—Growth substrates; Culture media; Apparatus or methods therefor based on or containing synthetic organic compounds
- A01G24/35—Growth substrates; Culture media; Apparatus or methods therefor based on or containing synthetic organic compounds containing water-absorbing polymers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/10—Apiaceae or Umbelliferae [Carrot family], e.g. parsley, caraway, dill, lovage, fennel or snakebed
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/14—Celastraceae [Staff-tree or Bittersweet family], e.g. spindle tree, bittersweet or thunder god vine
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/20—Fabaceae or Leguminosae [Pea or Legume family], e.g. pea, lentil, soybean, clover, acacia, honey locust, derris or millettia
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/38—Solanaceae [Potato family], e.g. nightshade, tomato, tobacco or chilli pepper
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/38—Solanaceae [Potato family], e.g. nightshade, tomato, tobacco or chilli pepper
- A01N65/385—Tobacco
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Environmental Sciences (AREA)
- Natural Medicines & Medicinal Plants (AREA)
- Microbiology (AREA)
- Wood Science & Technology (AREA)
- Biotechnology (AREA)
- Zoology (AREA)
- Agronomy & Crop Science (AREA)
- Mycology (AREA)
- Plant Pathology (AREA)
- Dentistry (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Botany (AREA)
- Soil Sciences (AREA)
- Inorganic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
A preparation method of a slow release fertilizer aiming at differences of water retention performance of karst mountainous regions comprises the following steps: (1) preparing a coating material; (2) preparing the medicinal materials; (3) fermenting to obtain a fermented material; (4) mixing the raw materials, grinding into powder, and filtering; (5) carrying out moisture regulation; (6) and (4) uniformly spraying the coating material to obtain the final slow release fertilizer. The method has the advantages of simple process, wide source of used raw materials, strong soil adhesiveness of the karst mountain region, reduction of difference of water retention performance, low cost and good plant growth effect.
Description
Technical Field
The invention relates to the technical field of fertilizer formulas and preparation, in particular to a preparation method of a slow release fertilizer aiming at differences of water retention performance in karst mountainous regions.
Background
Karst landforms refer to various landforms formed by water erosion and accompanying mechanical action of soluble rocks, and are widely distributed in the cantonese, the Guizhou, Yunnan and the like of China. In recent years, with large-scale engineering construction, mining and a series of infrastructure construction, a large number of exposed slopes are formed on karst landforms, a large number of rock-soil slopes incapable of recovering vegetation are generated, natural recovery of vegetation coverage on the karst shrub slopes in a short period is difficult to achieve, and the existing karst shrub slope protection technology can effectively relieve or even solve vegetation recovery of the exposed rock slopes to a certain extent.
However, on a bare rock slope, artificial soil is relatively original and is attached to the slope by manpower, but the artificial soil is not originally existed, and has the problems of poor permeability, difficult regulation of acid and alkali, large weight, containing a certain amount of harmful organisms such as worm eggs, weed seeds and the like, and low nutrient content. By combining the reasons, the vegetation can not obtain a good growing environment, the growth vigor is seriously restricted, and the quick recovery of the vegetation is influenced.
Although many compound fertilizers exist on the market at present for supplementing the needed nutrients of plants, the nutrient substances contained in the compound fertilizers are not complete, and excessive application of the fertilizers on the soil with poor water and fertility retention not only increases the production cost and reduces the economic benefit, but also wastes the fertilizers and pollutes the environment, particularly damages the micro-ecological environment of the soil.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a preparation method of a slow release fertilizer aiming at the difference of water retention performance in karst mountainous regions. The method has the advantages of simple process, wide source of used raw materials, strong soil adhesiveness of the karst mountain region, reduction of difference of water retention performance, low cost and good plant growth effect.
In order to achieve the purpose, the invention provides a preparation method of a slow release fertilizer aiming at differences of water retention performance of karst mountainous regions, wherein the slow release fertilizer comprises the following raw materials in parts by weight: 55-60 parts of wood powder, 30-40 parts of ternary compound fertilizer, 8-10 parts of palygorskite powder, 8-10 parts of goslarite, 3-5 parts of manganese sulfate, 1-2 parts of copper sulfate, 1-1.5 parts of sodium borate, 0.5-0.7 part of ammonium molybdate, 2-3 parts of limestone powder, 0.3-0.5 part of sodium selenite, 5-7 parts of compost, 18-20 parts of medicine material, 2.5-3 parts of water-holding agent, 25-30 parts of coating material, 0.3-0.5 part of rhizobium, 0.3-0.5 part of spore bacterium, 2.5-3.5 parts of polystyrene powder and 50-75 parts of culture soil;
the preparation method comprises the following steps:
(1) weighing the following raw materials in parts by weight: 15-18 parts of polypropylene glycol, 1.5-2 parts of opal, 5-7 parts of diphenylmethane diisocyanate, 2-3 parts of chondroitin sulfate and 20-22 parts of polylactide, uniformly mixing, adding a proper amount of water to just completely immerse, heating and decocting into a slurry shape, preserving heat at 50-60 ℃ for 2-2.5 hours, and then cooling to room temperature for drying to obtain a coating material;
(2) weighing various raw materials of the medicine materials according to the designed weight parts, wherein the raw materials and the weight parts are as follows: 12-15 parts of radix ranunculi ternati, 20-30 parts of caulis piperis futokadsurae, 10-15 parts of bakelite, 40-60 parts of radix angelicae, 12-15 parts of water, 5-10 parts of anoectochilus roxburghii, 5-10 parts of tobacco shreds, 10-12 parts of capsicum, 10-20 parts of chinaberry dates, 10-15 parts of sophora japonica powder, 8-15 parts of olives and 10-20 parts of tripterygium wilfordii; mixing, mashing, and drying to reduce the water content to 15% -20%; crushing the dried medicinal materials to obtain particles with a particle size of 15-18 mm;
(3) uniformly mixing the medicinal material prepared in the step (2), the ternary compound fertilizer, the compost and the polystyrene powder, and fermenting to obtain a fermented material;
(4) uniformly mixing the fermentation material prepared in the step (3) and the rest raw materials for preparing the slow release fertilizer, adding the mixture into a ball mill, grinding the mixture into powder, and filtering the powder by using a 100-mesh and 120-mesh sieve;
(5) regulating the water content of the product prepared in the step (4), and keeping the water content of the product at 0.3-0.5% under the temperature condition of 40-45 ℃;
(6) and (3) feeding the product prepared in the step (5) into a vibrating screen, and uniformly spraying the coating material prepared in the step (1) to obtain the final slow release fertilizer.
Preferably, the content ratio of the N, P element to the K element in the ternary compound fertilizer is 11-12:5-6: 6-7.
In any of the above embodiments, it is preferable that the polystyrene powder has a particle size of 5 to 8 mm.
In any of the above solutions, it is preferable that the vibration frequency of the vibrating screen used in the step (6) is 55 to 60Hz, and the amplitude is 2.5 to 3 mm.
In any of the above schemes, preferably, the fermentation in step (3) is specifically performed by: laying a ventilation pipe at the bottom of the fermentation container, laying a layer of loose straw on the ventilation pipe, placing the ternary compound fertilizer and the compost on the loose straw, and stirring and mixing uniformly; heating to 90-100 deg.C, maintaining for 60-80min, cooling to room temperature, spraying clear water to control water content to 48-50%, adding medicinal materials and polystyrene powder, mixing, stirring, and fermenting; adopting forced ventilation aerobic fermentation process, wherein when the fermentation temperature reaches 60-65 ℃, maintaining for 1-1.5h, repeatedly stirring, stacking the stirred fertilizer, and repeatedly operating until the temperature approaches normal temperature.
In any of the above schemes, preferably, the diameter of the ventilation pipe is 120-.
In any of the above embodiments, it is preferable that the palygorskite powder has a viscosity value of 2300-2400mPa · s and a particle size of 0.04-0.06 mm.
Wherein, the phosphorus element can be used as a fertilizer and can also be used as a soil conditioner to improve soil quality.
Zinc is a component element of some enzymes in plants, zinc is also necessary for promoting some metabolic reactions, zinc is necessary for chlorophyll generation and carbohydrate formation, and goslarite is selected in the invention.
Copper has the capability of improving the stability of plant chlorophyll, avoids the chlorophyll from being damaged prematurely, is beneficial to better photosynthesis of leaves, and selects copper sulfate.
Boron can promote normal operation of carbohydrate.
The invention is obtained according to years of practical application practice and experience, adopts the best technical means and measures to carry out combined optimization, obtains the optimal technical effect, is not simple superposition and splicing of technical characteristics, and has obvious significance.
The invention has the beneficial effects that:
1. the method has the advantages of simple process, wide source of used raw materials, strong soil adhesiveness of the karst mountain region, reduction of difference of water retention performance, low cost and good plant growth effect.
2. The slow release fertilizer prepared by the invention has strong pertinence. Not only can greatly improve the utilization efficiency of the fertilizer and reduce the environmental pollution, but also can reduce the fertilizer waste, reduce the production cost and improve the economic benefit.
3. The slow release fertilizer prepared by the invention can promote the formation of soil aggregate structures, contains a large number of elements, has the functions of slow release fertilizer efficiency and water retention, can provide nutrient components necessary for plant growth, keeps the nutrient components in the slow release fertilizer from losing, is beneficial to the normal growth and development of plants, and is complete in nutrient components, high in fertilizer efficiency, non-toxic, harmless, odorless and long in water retention time.
4. The fertilizer prepared by the invention is slow in release, and can effectively reduce the fertilizer dosage, reduce the production cost and improve the yield while meeting the growth requirements of plants. The invention can improve the porosity of the coating material, and can effectively form a shell outside the fertilizer, thereby achieving the purpose of slow release; meanwhile, through the mixing of the medicines, the insect-expelling, disease-resistant and anti-inflammatory effects are achieved, damage caused by plant diseases and insect pests can be effectively avoided, and the growth of plants is effectively guaranteed.
5. The slow release fertilizer can be well distributed in the karst mountain area, so that the thickness and the soil quality of the soil in the karst mountain area can not influence the planting of plants; meanwhile, rhizobium and spore bacteria are added into the fertilizer, so that the fertilizer can be decomposed to provide beneficial nutrition, and the rhizobium can fix nitrogen to continuously provide more nitrogen fertilizer; in addition, the polystyrene powder is added and uniformly distributed in the slow release fertilizer, so that the fertilizer soil is loosened, the plant root respiration is promoted, more nutrients are absorbed, the growth is promoted, the polystyrene powder can play a role in fixing the fertilizer and retaining water, the number of fertilizer application and watering is reduced, and the labor cost is reduced.
Detailed Description
The technical solutions of the present application will be described in detail below with reference to specific embodiments of the present application, but the following examples are only for understanding the present invention, and the examples and features of the examples in the present application can be combined with each other, and the present application can be implemented in various different ways as defined and covered by the claims.
Example 1
A preparation method of a slow release fertilizer aiming at differences of water retention performance of karst mountainous regions comprises the following raw materials in parts by weight: 55 parts of wood powder, 40 parts of ternary compound fertilizer, 8 parts of palygorskite powder, 10 parts of goslarite, 3 parts of manganese sulfate, 2 parts of copper sulfate, 1 part of sodium borate, 0.7 part of ammonium molybdate, 2 parts of limestone powder, 0.5 part of sodium selenite, 5 parts of compost, 20 parts of medicine material, 2.5 parts of water-holding agent, 30 parts of coating material, 0.3 part of rhizobium, 0.5 part of spore bacterium, 2.5 parts of polystyrene powder and 75 parts of culture soil;
the preparation method comprises the following steps:
(1) weighing the following raw materials in parts by weight: uniformly mixing polypropylene glycol 15, opal 2, diphenylmethane diisocyanate 5, chondroitin sulfate 3 and polylactide 20, adding a proper amount of water to just completely immerse the mixture, heating and decocting the mixture into a slurry, preserving heat at the temperature of 60 ℃ for 2 hours, and then cooling the slurry to room temperature for drying to obtain a coating material;
(2) weighing various raw materials of the medicine materials according to the designed weight parts, wherein the raw materials and the weight parts are as follows: 15 parts of gerbera felina, 20 parts of caulis piperis futokadsurae, 15 parts of bakelite, 40 parts of radix angelicae, 15 parts of water, 5 parts of anoectochilus formosanus, 10 parts of tobacco shreds, 10 parts of zanthoxylum piperitum, 20 parts of chinaberry dates, 10 parts of sophora japonica powder, 15 parts of olives and 10 parts of tripterygium wilfordii; mixing, mashing, and drying to reduce water content to 20%; crushing the dried medicinal materials until the granularity reaches 15 mm;
(3) uniformly mixing the medicinal material prepared in the step (2), the ternary compound fertilizer, the compost and the polystyrene powder, and fermenting to obtain a fermented material;
(4) uniformly mixing the fermentation material prepared in the step (3) and the rest raw materials for preparing the slow release fertilizer, adding the mixture into a ball mill, grinding the mixture into powder, and filtering the powder by using a 120-mesh sieve;
(5) regulating the water content of the product prepared in the step (4), and keeping the water content of the product at 0.5% under the temperature condition of 40 ℃;
(6) and (3) feeding the product prepared in the step (5) into a vibrating screen, and uniformly spraying the coating material prepared in the step (1) to obtain the final slow release fertilizer.
Wherein the content ratio of N, P and K elements in the ternary compound fertilizer is 11-6: 6.
The particle size of the polystyrene powder is 8 mm.
The vibration frequency of the vibration sieve used in the step (6) is 55Hz, and the amplitude is 3 mm.
The fermentation in the step (3) comprises the following specific operations: laying a ventilation pipe at the bottom of the fermentation container, laying a layer of loose straw on the ventilation pipe, placing the ternary compound fertilizer and the compost on the loose straw, and stirring and mixing uniformly; raising the temperature to 90 ℃, maintaining the temperature for 80min, then cooling to the room temperature, pouring clear water to control the water content to be 48%, then adding the medicinal materials and the polystyrene powder, mixing and stirring uniformly, and then stacking and fermenting; adopting a forced ventilation aerobic fermentation process, wherein when the fermentation temperature reaches 65 ℃, the fermentation temperature is maintained for 1 hour, then repeatedly stirring, stacking the stirred fertilizer, and repeatedly operating until the temperature approaches the normal temperature.
The diameter of the ventilation pipe is 130mm, one end of the ventilation pipe is closed, the other end of the ventilation pipe is connected with the low-pressure fan, vent holes with the diameter of 3mm are uniformly formed in the ventilation pipe, the pressure of the low-pressure fan is 850pa, the power of the low-pressure fan is 400w, and the rotating speed of the low-pressure fan is 3200 r/min.
The viscosity value of the palygorskite powder is 2300mPa & s, and the particle size is 0.06 mm.
Example 2
A preparation method of a slow release fertilizer aiming at differences of water retention performance of karst mountainous regions comprises the following raw materials in parts by weight: 60 parts of wood powder, 30 parts of ternary compound fertilizer, 10 parts of palygorskite powder, 8 parts of goslarite, 5 parts of manganese sulfate, 1 part of copper sulfate, 1.5 parts of sodium borate, 0.5 part of ammonium molybdate, 3 parts of limestone powder, 0.3 part of sodium selenite, 7 parts of compost, 18 parts of medicine material, 3 parts of water-holding agent, 25 parts of coating material, 0.5 part of rhizobium, 0.3 part of spore bacterium, 3.5 parts of polystyrene powder and 50 parts of culture soil;
the preparation method comprises the following steps:
(1) weighing the following raw materials in parts by weight: polypropylene glycol 18, opal 1.5, diphenylmethane diisocyanate 7, chondroitin sulfate 2 and polylactide 22, uniformly mixing, adding a proper amount of water to just completely immerse, heating and decocting into a slurry, keeping the temperature at 50 ℃ for 2.5 hours, and then cooling to room temperature for drying to obtain a coating material;
(2) weighing various raw materials of the medicine materials according to the designed weight parts, wherein the raw materials and the weight parts are as follows: 12 parts of gerbera felina, 30 parts of caulis piperis futokadsurae, 10 parts of bakelite, 60 parts of radix angelicae, 12 parts of water, 10 parts of anoectochilus formosanus, 5 parts of tobacco shreds, 12 parts of zanthoxylum piperitum, 10 parts of chinaberry fruits, 15 parts of sophora japonica powder, 8 parts of olives and 20 parts of tripterygium wilfordii; mixing, mashing, and drying to reduce water content to 15%; crushing the dried medicine materials to obtain the granularity of 18 mm;
(3) uniformly mixing the medicinal material prepared in the step (2), the ternary compound fertilizer, the compost and the polystyrene powder, and fermenting to obtain a fermented material;
(4) uniformly mixing the fermentation material prepared in the step (3) and the rest raw materials for preparing the slow release fertilizer, adding the mixture into a ball mill, grinding the mixture into powder, and filtering the powder by using a 100-mesh sieve;
(5) regulating the water content of the product prepared in the step (4), and keeping the water content of the product at 0.3% under the temperature condition of 45 ℃;
(6) and (3) feeding the product prepared in the step (5) into a vibrating screen, and uniformly spraying the coating material prepared in the step (1) to obtain the final slow release fertilizer.
Wherein the content ratio of N, P to K in the ternary compound fertilizer is 12:5: 7.
The particle size of the polystyrene powder is 5 mm.
The vibration frequency of the vibration sieve used in the step (6) is 60Hz, and the amplitude is 2.5 mm.
The fermentation in the step (3) comprises the following specific operations: laying a ventilation pipe at the bottom of the fermentation container, laying a layer of loose straw on the ventilation pipe, placing the ternary compound fertilizer and the compost on the loose straw, and stirring and mixing uniformly; raising the temperature to 100 ℃, maintaining for 60min, then cooling to room temperature, pouring clear water to control the water content to be 50%, then adding the medicinal materials and the polystyrene powder, mixing and stirring uniformly, and then stacking and fermenting; adopting a forced ventilation aerobic fermentation process, wherein when the fermentation temperature reaches 60 ℃, the fermentation temperature is maintained for 1.5h, then repeatedly stirring, stacking the stirred fertilizer, and repeatedly operating until the temperature approaches the normal temperature.
The diameter of the ventilation pipe is 120mm, one end of the ventilation pipe is closed, the other end of the ventilation pipe is connected with the low-pressure fan, vent holes with the diameter of 5mm are uniformly formed in the ventilation pipe, the pressure of the low-pressure fan is 800pa, the power of the low-pressure fan is 420w, and the rotating speed of the low-pressure fan is 3000 r/min.
The viscosity value of the palygorskite powder is 2400mPa & s, and the particle size is 0.04 mm.
Example 3
A preparation method of a slow release fertilizer aiming at differences of water retention performance of karst mountainous regions comprises the following raw materials in parts by weight: 58 parts of wood powder, 35 parts of ternary compound fertilizer, 9 parts of palygorskite powder, 9 parts of goslarite, 4 parts of manganese sulfate, 1.5 parts of copper sulfate, 1.2 parts of sodium borate, 0.6 part of ammonium molybdate, 2.5 parts of limestone powder, 0.4 part of sodium selenite, 6 parts of compost, 19 parts of medicinal materials, 2.8 parts of water-holding agents, 27 parts of coating materials, 0.4 part of rhizobia, 0.4 part of spore bacteria, 3 parts of polystyrene powder and 65 parts of culture soil;
the preparation method comprises the following steps:
(1) weighing the following raw materials in parts by weight: uniformly mixing 16 parts of polypropylene glycol, 1.9 parts of opal, 6 parts of diphenylmethane diisocyanate, 2.5 parts of chondroitin sulfate and 21 parts of polylactide, adding a proper amount of water to be just completely immersed, heating and decocting into a slurry, keeping the temperature at 55 ℃ for 2.3 hours, and then cooling to room temperature for drying to obtain a coating material;
(2) weighing various raw materials of the medicine materials according to the designed weight parts, wherein the raw materials and the weight parts are as follows: 14 parts of gerbera felina, 25 parts of caulis piperis futokadsurae, 13 parts of bakelite, 40-60 parts of radix angelicae, 13 parts of water, 7 parts of anoectochilus formosanus, 8 parts of tobacco shred, 11 parts of zanthoxylum piperitum, 15 parts of chinaberry jujube, 13 parts of sophora japonica powder, 11 parts of olive and 15 parts of tripterygium wilfordii; mixing, mashing, and drying to reduce water content to 16%; crushing the dried medicine materials to obtain the granularity of 17 mm;
(3) uniformly mixing the medicinal material prepared in the step (2), the ternary compound fertilizer, the compost and the polystyrene powder, and fermenting to obtain a fermented material;
(4) uniformly mixing the fermentation material prepared in the step (3) and the rest raw materials for preparing the slow release fertilizer, adding the mixture into a ball mill, grinding the mixture into powder, and filtering the powder by using a 110-mesh sieve;
(5) regulating the water content of the product prepared in the step (4), and keeping the water content of the product at 0.4% under the temperature condition of 42 ℃;
(6) and (3) feeding the product prepared in the step (5) into a vibrating screen, and uniformly spraying the coating material prepared in the step (1) to obtain the final slow release fertilizer.
Wherein the content ratio of N, P to K in the ternary compound fertilizer is 11:6: 7.
The particle size of the polystyrene powder is 7 mm.
The vibration frequency of the vibration sieve used in the step (6) is 58Hz, and the amplitude is 2.7 mm.
The fermentation in the step (3) comprises the following specific operations: laying a ventilation pipe at the bottom of the fermentation container, laying a layer of loose straw on the ventilation pipe, placing the ternary compound fertilizer and the compost on the loose straw, and stirring and mixing uniformly; raising the temperature to 95 ℃, maintaining for 70min, then cooling to room temperature, pouring clear water to control the water content to be 49%, then adding the medicinal materials and the polystyrene powder, mixing and stirring uniformly, and then stacking and fermenting; adopting a forced ventilation aerobic fermentation process, wherein when the fermentation temperature reaches 63 ℃, the fermentation temperature is maintained for 1 hour, then repeatedly stirring, stacking the stirred fertilizer, and repeatedly operating until the temperature approaches the normal temperature.
The diameter of the ventilation pipe is 125mm, one end of the ventilation pipe is closed, the other end of the ventilation pipe is connected with the low-pressure fan, vent holes with the diameter of 4mm are uniformly formed in the ventilation pipe, the pressure of the low-pressure fan is 830pa, the power of the low-pressure fan is 410w, and the rotating speed is 3100 r/min.
The viscosity value of the palygorskite powder is 2350mPa & s, and the particle size is 0.05 mm.
Example 4
A preparation method of a slow release fertilizer aiming at differences of water retention performance of karst mountainous regions comprises the following raw materials in parts by weight: 55-60 parts of wood powder, 30-40 parts of ternary compound fertilizer, 8-10 parts of palygorskite powder, 8-10 parts of goslarite, 3-5 parts of manganese sulfate, 1-2 parts of copper sulfate, 1-1.5 parts of sodium borate, 0.5-0.7 part of ammonium molybdate, 2-3 parts of limestone powder, 0.3-0.5 part of sodium selenite, 5-7 parts of compost, 18-20 parts of medicine material, 2.5-3 parts of water-holding agent, 25-30 parts of coating material, 0.3-0.5 part of rhizobium, 0.3-0.5 part of spore bacterium, 2.5-3.5 parts of polystyrene powder and 50-75 parts of culture soil;
the preparation method comprises the following steps:
(1) weighing the following raw materials in parts by weight: 15-18 parts of polypropylene glycol, 1.5-2 parts of opal, 5-7 parts of diphenylmethane diisocyanate, 2-3 parts of chondroitin sulfate and 20-22 parts of polylactide, uniformly mixing, adding a proper amount of water to just completely immerse, heating and decocting into a slurry shape, preserving heat at 50-60 ℃ for 2-2.5 hours, and then cooling to room temperature for drying to obtain a coating material;
(2) weighing various raw materials of the medicine materials according to the designed weight parts, wherein the raw materials and the weight parts are as follows: 12-15 parts of radix ranunculi ternati, 20-30 parts of caulis piperis futokadsurae, 10-15 parts of bakelite, 40-60 parts of radix angelicae, 12-15 parts of water, 5-10 parts of anoectochilus roxburghii, 5-10 parts of tobacco shreds, 10-12 parts of capsicum, 10-20 parts of chinaberry dates, 10-15 parts of sophora japonica powder, 8-15 parts of olives and 10-20 parts of tripterygium wilfordii; mixing, mashing, and drying to reduce the water content to 15% -20%; crushing the dried medicinal materials to obtain particles with a particle size of 15-18 mm;
(3) uniformly mixing the medicinal material prepared in the step (2), the ternary compound fertilizer, the compost and the polystyrene powder, and fermenting to obtain a fermented material;
(4) uniformly mixing the fermentation material prepared in the step (3) and the rest raw materials for preparing the slow release fertilizer, adding the mixture into a ball mill, grinding the mixture into powder, and filtering the powder by using a 100-mesh and 120-mesh sieve;
(5) regulating the water content of the product prepared in the step (4), and keeping the water content of the product at 0.3-0.5% under the temperature condition of 40-45 ℃;
(6) and (3) feeding the product prepared in the step (5) into a vibrating screen, and uniformly spraying the coating material prepared in the step (1) to obtain the final slow release fertilizer.
Wherein the content ratio of N, P to K in the ternary compound fertilizer is 11-12:5-6: 6-7.
The particle size of the polystyrene powder is 5-8 mm.
The vibration frequency of the vibration sieve used in the step (6) is 55-60Hz, and the amplitude is 2.5-3 mm.
The fermentation in the step (3) comprises the following specific operations: laying a ventilation pipe at the bottom of the fermentation container, laying a layer of loose straw on the ventilation pipe, placing the ternary compound fertilizer and the compost on the loose straw, and stirring and mixing uniformly; heating to 90-100 deg.C, maintaining for 60-80min, cooling to room temperature, spraying clear water to control water content to 48-50%, adding medicinal materials and polystyrene powder, mixing, stirring, and fermenting; adopting forced ventilation aerobic fermentation process, wherein when the fermentation temperature reaches 60-65 ℃, maintaining for 1-1.5h, repeatedly stirring, stacking the stirred fertilizer, and repeatedly operating until the temperature approaches normal temperature.
The diameter of the ventilation pipe is 130mm, one end of the ventilation pipe is closed, the other end of the ventilation pipe is connected with the low-pressure fan, vent holes with the diameter of 3-5mm are uniformly arranged on the ventilation pipe, the pressure of the low-pressure fan is 800-.
The viscosity value of the palygorskite powder is 2300-2400mPa & s, and the particle size is 0.04-0.06 mm.
Wherein the water holding agent is prepared by mixing K-PAM, propylene glycol alginate and bentonite powder according to the weight ratio of 2.5-3: 1.5-2: 0.8-1.
The porphyry powder is prepared by the following steps:
(1) drying and crushing the rough porphyry rocky by adopting high-pressure airflow, screening and purifying until the content of the montmorillonite is 96-97 wt%, adding water, adjusting the pH value to be 6.5-7.5, stirring and reacting for 5-6h, and then crushing to obtain 4000-mesh 4500-mesh ultrafine porphyry rocky powder; the pressure of the high-pressure airflow is 0.1-0.2MPa, and the rotating speed during crushing is 13000-14000 r/min;
(2) trimethyl borate is used, and surface activation modification is carried out after pressurization at the temperature of 120-130 ℃, namely, the trimethyl borate is dissolved and then sprayed on the surface of the powder in a mist shape to fully wet and coat the surface of the powder, the activation rate is 93-95%, and the pressure is 0.5-0.6MPa, so that the final porphyry powder is obtained.
The porphyry powder prepared by the method not only can meet the requirement of being used as an additive, but also can improve various performances by 70-80%.
Examination of
Compared with the common slow-release fertilizer, the slow-release fertilizer has obvious effect, and in order to better prove the effect, experiments are carried out in the field, 3 experimental places are respectively taken as experimental places in a certain region in the south, and blank control experiments are respectively carried out; spraying common slow release fertilizer purchased from the market to soil at the initial stage and spraying leaf surfaces at the later stage; the slow release fertilizer prepared by the invention is used for spraying soil in the initial stage and spraying leaf surfaces in the later stage, comparison is carried out according to the results, shrubs in each experimental land are tracked and traced after 6 months of growth, and the recorded conditions of the plant germination rate, the survival rate of the plant growing for 6 months, the coverage rate, the trunk diameter and the plant diseases and insect pests are as follows:
the data show that the plant growth assisting agent is very obvious in plant growth assisting, and has good popularization value and use value.
In addition, in order to achieve better technical effects, the technical solutions in the above embodiments may be combined arbitrarily to meet various requirements of practical applications.
The embodiment shows that the method has simple process and wide source of used raw materials, the prepared slow release fertilizer has strong soil adhesiveness in karst mountainous regions, the difference of water retention performance is reduced, the cost is low, and the plant growth effect is good.
The slow release fertilizer prepared by the invention has strong pertinence. Not only can greatly improve the utilization efficiency of the fertilizer and reduce the environmental pollution, but also can reduce the fertilizer waste, reduce the production cost and improve the economic benefit.
The slow release fertilizer prepared by the invention can promote the formation of soil aggregate structures, contains a large number of elements, has the functions of slow release fertilizer efficiency and water retention, can provide nutrient components necessary for plant growth, keeps the nutrient components in the slow release fertilizer from losing, is beneficial to the normal growth and development of plants, and is complete in nutrient components, high in fertilizer efficiency, non-toxic, harmless, odorless and long in water retention time.
The fertilizer prepared by the invention is slow in release, and can effectively reduce the fertilizer dosage, reduce the production cost and improve the yield while meeting the growth requirements of plants. The invention can improve the porosity of the coating material, and can effectively form a shell outside the fertilizer, thereby achieving the purpose of slow release; meanwhile, through the mixing of the medicines, the insect-expelling, disease-resistant and anti-inflammatory effects are achieved, damage caused by plant diseases and insect pests can be effectively avoided, and the growth of plants is effectively guaranteed.
The slow release fertilizer can be well distributed in the karst mountain area, so that the thickness and the soil quality of the soil in the karst mountain area can not influence the planting of plants; meanwhile, rhizobium and spore bacteria are added into the fertilizer, so that the fertilizer can be decomposed to provide beneficial nutrition, and the rhizobium can fix nitrogen to continuously provide more nitrogen fertilizer; in addition, the polystyrene powder is added and uniformly distributed in the slow release fertilizer, so that the fertilizer soil is loosened, the plant root respiration is promoted, more nutrients are absorbed, the growth is promoted, the polystyrene powder can play a role in fixing the fertilizer and retaining water, the number of fertilizer application and watering is reduced, and the labor cost is reduced.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (7)
1. The preparation method of the slow release fertilizer aiming at the difference of water retention performance of karst mountainous regions is characterized in that the slow release fertilizer comprises the following raw materials in parts by weight: 55-60 parts of wood powder, 30-40 parts of ternary compound fertilizer, 8-10 parts of palygorskite powder, 8-10 parts of goslarite, 3-5 parts of manganese sulfate, 1-2 parts of copper sulfate, 1-1.5 parts of sodium borate, 0.5-0.7 part of ammonium molybdate, 2-3 parts of limestone powder, 0.3-0.5 part of sodium selenite, 5-7 parts of compost, 18-20 parts of medicine material, 2.5-3 parts of water-holding agent, 25-30 parts of coating material, 0.3-0.5 part of rhizobium, 0.3-0.5 part of spore bacterium, 2.5-3.5 parts of polystyrene powder and 50-75 parts of culture soil;
the preparation method comprises the following steps:
(1) weighing the following raw materials in parts by weight: 15-18 parts of polypropylene glycol, 1.5-2 parts of opal, 5-7 parts of diphenylmethane diisocyanate, 2-3 parts of chondroitin sulfate and 20-22 parts of polylactide, uniformly mixing, adding a proper amount of water to just completely immerse, heating and decocting into a slurry shape, preserving heat at 50-60 ℃ for 2-2.5 hours, and then cooling to room temperature for drying to obtain a coating material;
(2) weighing various raw materials of the medicine materials according to the designed weight parts, wherein the raw materials and the weight parts are as follows: 12-15 parts of radix ranunculi ternati, 20-30 parts of caulis piperis futokadsurae, 10-15 parts of bakelite, 40-60 parts of radix angelicae, 12-15 parts of water, 5-10 parts of anoectochilus roxburghii, 5-10 parts of tobacco shreds, 10-12 parts of capsicum, 10-20 parts of chinaberry dates, 10-15 parts of sophora japonica powder, 8-15 parts of olives and 10-20 parts of tripterygium wilfordii; mixing, mashing, and drying to reduce the water content to 15% -20%; crushing the dried medicinal materials to obtain particles with a particle size of 15-18 mm;
(3) uniformly mixing the medicinal material prepared in the step (2), the ternary compound fertilizer, the compost and the polystyrene powder, and fermenting to obtain a fermented material;
(4) uniformly mixing the fermentation material prepared in the step (3) and the rest raw materials for preparing the slow release fertilizer, adding the mixture into a ball mill, grinding the mixture into powder, and filtering the powder by using a 100-mesh and 120-mesh sieve;
(5) regulating the water content of the product prepared in the step (4), and keeping the water content of the product at 0.3-0.5% under the temperature condition of 40-45 ℃;
(6) and (3) feeding the product prepared in the step (5) into a vibrating screen, and uniformly spraying the coating material prepared in the step (1) to obtain the final slow release fertilizer.
2. The preparation method of the slow release fertilizer aiming at the difference of the water retention performance of the karst mountain areas as claimed in claim 1, wherein the content ratio of N, P to K in the ternary compound fertilizer is 11-12:5-6: 6-7.
3. The preparation method of the slow release fertilizer aiming at the difference of the water retention performance of the karst mountain land as claimed in claims 1-2, wherein the particle size of the polystyrene powder is 5-8 mm.
4. The preparation method of the slow release fertilizer aiming at the difference of the water retention performance of the karst mountain land is characterized in that the vibration frequency of the vibration sieve used in the step (6) is 55-60Hz, and the amplitude is 2.5-3 mm.
5. The preparation method of the slow release fertilizer aiming at the difference of the water retention performance of the karst mountain land as claimed in claim 4, wherein the fermentation in the step (3) is carried out by: laying a ventilation pipe at the bottom of the fermentation container, laying a layer of loose straw on the ventilation pipe, placing the ternary compound fertilizer and the compost on the loose straw, and stirring and mixing uniformly; heating to 90-100 deg.C, maintaining for 60-80min, cooling to room temperature, spraying clear water to control water content to 48-50%, adding medicinal materials and polystyrene powder, mixing, stirring, and fermenting; adopting forced ventilation aerobic fermentation process, wherein when the fermentation temperature reaches 60-65 ℃, maintaining for 1-1.5h, repeatedly stirring, stacking the stirred fertilizer, and repeatedly operating until the temperature approaches normal temperature.
6. The method for preparing the slow release fertilizer aiming at the difference of the water-holding performance of the karst mountain land as claimed in claims 4-5, wherein the diameter of the ventilation pipe is 130mm, one end of the ventilation pipe is closed, the other end of the ventilation pipe is connected with the low pressure fan, the ventilation pipe is uniformly provided with vent holes with the diameter of 3-5mm, the pressure of the low pressure fan is 800-.
7. The preparation method of the slow release fertilizer aiming at the difference of the water retention performance of the karst mountain land as claimed in claim 6, wherein the viscosity value of the palygorskite powder is 2300-2400mPa · s, and the particle size is 0.04-0.06 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010094187.1A CN111345221A (en) | 2020-02-12 | 2020-02-12 | Preparation method of slow release fertilizer aiming at difference of water retention performance of karst mountain land |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010094187.1A CN111345221A (en) | 2020-02-12 | 2020-02-12 | Preparation method of slow release fertilizer aiming at difference of water retention performance of karst mountain land |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111345221A true CN111345221A (en) | 2020-06-30 |
Family
ID=71188639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010094187.1A Pending CN111345221A (en) | 2020-02-12 | 2020-02-12 | Preparation method of slow release fertilizer aiming at difference of water retention performance of karst mountain land |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111345221A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101543181A (en) * | 2009-05-08 | 2009-09-30 | 贵州科农生态环保科技有限责任公司 | Artificial soil for shrub slope protection in karst area and method for preparing same |
| CN102875260A (en) * | 2012-10-22 | 2013-01-16 | 江苏花海农业科技有限公司 | Production method of granular saline-alkaline soil water holding slow release fertilizer |
| CN103772009A (en) * | 2013-12-30 | 2014-05-07 | 北京仁创三会农业科技有限公司 | Coated controlled-release fertilizer and preparation method thereof |
| CN104671987A (en) * | 2015-01-27 | 2015-06-03 | 北京富特来复合肥料有限公司 | Resin-coated urea and preparation method thereof |
| CN106316646A (en) * | 2016-08-30 | 2017-01-11 | 贵阳开磷化肥有限公司 | Special slow release fertilizer for sugarcane and preparation method of slow release fertilizer |
| CN106489589A (en) * | 2016-09-28 | 2017-03-15 | 博白县大红火龙果专业合作社 | A kind of fertilizer bag of Karst Mountain Areas plantation Hylocereus undatuss and preparation method thereof |
| CN107602231A (en) * | 2017-09-28 | 2018-01-19 | 钟山佳欣果蔬有限责任公司 | A kind of citrus special slow release depot fertilizer and preparation method thereof |
| CN109851437A (en) * | 2019-04-08 | 2019-06-07 | 聊城大学 | A kind of the water-retaining type release and release control fertilizer and its production method of biomass-based polymer capsule |
| CN109928823A (en) * | 2017-12-18 | 2019-06-25 | 郭锦 | A kind of preparation method of enveloped slow release fertilizer |
-
2020
- 2020-02-12 CN CN202010094187.1A patent/CN111345221A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101543181A (en) * | 2009-05-08 | 2009-09-30 | 贵州科农生态环保科技有限责任公司 | Artificial soil for shrub slope protection in karst area and method for preparing same |
| CN102875260A (en) * | 2012-10-22 | 2013-01-16 | 江苏花海农业科技有限公司 | Production method of granular saline-alkaline soil water holding slow release fertilizer |
| CN103772009A (en) * | 2013-12-30 | 2014-05-07 | 北京仁创三会农业科技有限公司 | Coated controlled-release fertilizer and preparation method thereof |
| CN104671987A (en) * | 2015-01-27 | 2015-06-03 | 北京富特来复合肥料有限公司 | Resin-coated urea and preparation method thereof |
| CN106316646A (en) * | 2016-08-30 | 2017-01-11 | 贵阳开磷化肥有限公司 | Special slow release fertilizer for sugarcane and preparation method of slow release fertilizer |
| CN106489589A (en) * | 2016-09-28 | 2017-03-15 | 博白县大红火龙果专业合作社 | A kind of fertilizer bag of Karst Mountain Areas plantation Hylocereus undatuss and preparation method thereof |
| CN107602231A (en) * | 2017-09-28 | 2018-01-19 | 钟山佳欣果蔬有限责任公司 | A kind of citrus special slow release depot fertilizer and preparation method thereof |
| CN109928823A (en) * | 2017-12-18 | 2019-06-25 | 郭锦 | A kind of preparation method of enveloped slow release fertilizer |
| CN109851437A (en) * | 2019-04-08 | 2019-06-07 | 聊城大学 | A kind of the water-retaining type release and release control fertilizer and its production method of biomass-based polymer capsule |
Non-Patent Citations (1)
| Title |
|---|
| 黄发荣等: "《高分子材料的循环利用》", 31 January 2000, 化学工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102267842B (en) | Organic-inorganic block controlled release fertilizer and preparation method thereof | |
| CN110408406B (en) | Agricultural and forestry water-retaining agent based on bamboo vinegar powder and preparation method thereof | |
| CN109485524A (en) | A kind of dedicated organic base fertilizer of rice and preparation method thereof | |
| CN111995459A (en) | Organic water-retaining suspension liquid compound fertilizer and preparation method thereof | |
| CN105036903A (en) | Biocarbon sustain-released paddy rice dedicated basic fertilizer and preparation method thereof | |
| CN100398625C (en) | Water-loss reducer of soil and its preparation method | |
| CN107840733B (en) | Foliar fertilizer suitable for cotton seedling stage and preparation method and application thereof | |
| CN104892079B (en) | A kind of organic composite fertilizer suitable for sand ground forest | |
| CN112568091B (en) | Container seedling raising substrate for zelkova schneideriana and preparation method thereof | |
| CN103430680A (en) | Fertilizing method by utilizing biogas manure in vegetable cultivation | |
| WO2024032339A1 (en) | Preparation method for orchard base fertilizer and application method therefor | |
| CN107652065A (en) | Lysimachia foenum-graecum Special slow release fertilizer and its production method | |
| CN110590454A (en) | Slow/controlled release fertilizer and preparation method thereof | |
| CN104892143A (en) | Biological organic fertilizer and preparation method thereof | |
| CN104557272A (en) | Method for preparing bagged controlled release fertilizer from Ageratina adenophora | |
| CN113265256A (en) | Soil conditioner and preparation method and application thereof | |
| CN111345221A (en) | Preparation method of slow release fertilizer aiming at difference of water retention performance of karst mountain land | |
| CN103430763A (en) | Cultivation method for vegetable | |
| CN107200625A (en) | A kind of Chinese milk vetch is the rice mechanical transplanting seedling dedicated substrate and its production method of raw material | |
| CN107129373A (en) | A kind of nursery stock organic fertilizer and preparation method thereof | |
| CN106588437A (en) | Fertilizer for promoting growth of trees and flowers and preparation method of fertilizer | |
| CN103964944B (en) | A kind of method utilizing flat mushroom waste-material-preparing seedling raising ground substance | |
| CN109400264A (en) | A kind of afforestation fertilizer | |
| CN108812187A (en) | A kind of crops seedling medium and preparation method thereof | |
| CN115417724B (en) | Composite active slow-release organic fertilizer and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |