CN108384557A - A kind of soil conditioner and its preparation method and application of prevention rapeseed clubroot - Google Patents
A kind of soil conditioner and its preparation method and application of prevention rapeseed clubroot Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- 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
- A01G13/00—Protecting plants
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C5/00—Fertilisers containing other nitrates
- C05C5/04—Fertilisers containing other nitrates containing calcium nitrate
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- 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
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- 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
- C05G3/20—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for preventing the fertilisers being reduced to powder; Anti-dusting additives
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- 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
- C05G3/80—Soil conditioners
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- 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
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09K2101/00—Agricultural use
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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Abstract
The present invention relates to soil conditioner preparation fields, and in particular to a kind of soil conditioner and its preparation method and application of prevention rapeseed clubroot；A kind of soil conditioner of prevention rapeseed clubroot provided by the invention, by weight, raw material includes：70 80 parts of water-soluble calcium, 0.1 1 parts of water soluble magnesium, 20 25 parts of 23 parts of organic nitrogen, 8 15 parts of humus, 6 15 parts of binder and sustained release agent；The present invention is free of chemical pesticide, it is nontoxic to crops, it is free from environmental pollution, it is good for the environment and food security, using not influenced by geological conditions, soil environment, the control effect of clubroot is protruded and is stablized, do not easily cause soil hardening and environmental pollution, fundamentally reduce cause of disease amount in soil, pre- disease prevention occurs from source, while preventing clubroot, also has the function of increasing soil fertility, promotes plant growth, water-soluble calcium release in conditioner is slow, avoids the uneven distributions of Ca2+ in the soil.
Description
Technical field
The present invention relates to soil conditioner preparation fields, and in particular to it is a kind of prevention rapeseed clubroot soil conditioner and
Preparation method and application.
Background technology
Crop in cruciferae is important oil plant and industrial crops, and since clubroot endangers, many lesiones cannot plant
The crops such as brassicaceous vegetable and rape seriously affect the production and living and economic well-being of workers and staff of peasant.Crop in cruciferae knee
Sick pathogenic bacteria are plasmodiophora brassica bacteria, and germ resting spore can survive 15 years or more in the soil.Germ is mainly with band soil bacteria
It is propagated with the irrigation water by pathogen contamination.Long-distance communications are passed by the seed to carry disease germs, the vegetable seedling to carry disease germs etc.
It broadcasts.7.0 or more soil pH value is then unfavorable for the happening and prevelence of germ infected with disease, at present China's major part vegetables and rape
The soil meta-acid of planting area, is conducive to clubroot.In addition, the glutinous weight of soil, easily hardened, the plot of poor air permeability is easily sent out
This disease；The content of organic matter is low, and partially to fertilize, level of ground water is high, and the field incidence of drainage condition difference is high, and harm is heavier.
In terms of research prevents clubroot, China lays particular emphasis on two kinds of channels at present：
One, physical control：1, crop rotation is carried out with non-brassicaceous vegetable；2, find that diseased plant is removed in time, diseased plant carries field outside
It burns outside or buried, which is the field management of part, can mitigate disease, but micro- in the upper effect of large area clubroot prevention
It is weak, it takes time and effort；3, liming adjusts soil acidity or alkalinity, and general 75-100 kilograms of mu liming powder, the method is generally being broadcast
It is used before kind, is not only easy burn seedlings, but also long-term (2 years) liming powder is easy to cause soil hardening, and be difficult suppression completely
System or kill soil in resting spore, control effect mainly with the amount of used lime, lime particle size, lime
The degree of scatter of grain, the soil texture, time interval between soil moisture and liming and sowing etc. are related.Due to existing
Many uncertain factors, there are prodigious othernesses for the effect of liming prevention clubroot.After diseased plant occurs in field, fill
Low concentration limewash is poured, this can only cut off extension to a certain extent；4, plant ash mixes earth mulch kind, but plant ash is needed
A large amount of crop straw burnings are carried out, environment is polluted, with the implementation for burning ban, plant ash source is insufficient；5, rational fertilising.
Two, chemical prevention：Soil disinfection can be sprinkled with 500 times of liquid of 50% carbendazim, 600 times of liquid or fenaminosulf to be applied；Bacterium more than 50%
500 times of liquid of clever wettable powder, 70% thiophanate methyl, 800 times of liquid, 58% thunder, 1000 times of liquid of more Mirs, every plant of 0.4-0.5 liter
Pouring root.The application effect of chemical agent and administration time, concentration, number etc. are related, and Po Shi or pouring root will usually carry out 2-3
Secondary, dosing is big, and labor cost is high, and effect is often difficult to accurate evaluation, and a large amount of soil chemicals treatments can make medicament straight
It connects and penetrates into soil or underground water, not only cause environmental pollution, harm can be also brought to health.
Either physical control or chemical prevention all take, effort.
Clubroot is prevented by the way of coating agent for seed in addition, also having in the prior art, but coating agent for seed belongs to
This season is effective using this season, cannot fundamentally solve the problems, such as the pathogen to survive in soil.
Develop and find new crop in cruciferae clubroot means of prevention and product have become in production there is an urgent need to.
As can provide it is a kind of without chemical pesticide, it is environmentally protective, clubroot control effect is protruded stablize, do not easily cause soil hardening,
Environmental pollution, the new soil recuperation agent that using effect is not influenced by geological conditions, soil environment play the role of preventing clubroot
While, it increases soil fertility, promotes plant growth and output increased, the cultivation of crop in cruciferae will be gone far towards.
Chinese patent CN104004526A discloses the soil conditioner of prevention rapeseed clubroot, preparation method and application,
Have the advantages that using it is simple, slowly discharge in water, while having effects that slowly uniformly to raise soil acidity or alkalinity, but organic
The releasing effect of nitrogen is undesirable, and especially in rice field-upland field rotation (rice-rape or rice-vegetables) area, preceding paddy growth of making needs
When wanting nitrogen, nitrogen release is insufficient, and the nitrogen that the later stage discharges again has then reformed into useless nitrogen, makees the underproduction and the nitrogenous fertilizer of rice before causing
Waste.
Invention content
The shortcomings that in order to overcome the prior art, an object of the present invention are to provide a kind of with good prevention rape knee
The soil conditioner of disease is free of chemical pesticide, environmentally protective, using not influenced by geological conditions, soil environment；To clubroot
Control effect protrude stablize；Do not easily cause soil hardening and environmental pollution；While preventing the effect of clubroot, also has and carry
The effect of crop paddy growth before high soil fertility, promotion, it is particularly suitable in rice field-upland field rotation (rice-rape or rice-vegetable
Dish) area the application of rice seedling planting season, there is application simple (directly being shed on ridge), slowly discharge in water
Advantage, while having effects that slowly uniformly to raise soil acidity or alkalinity and improving the soil organism.
The present invention technical purpose realized by following scheme,
A kind of soil conditioner of prevention rapeseed clubroot, by weight, raw material includes：70-80 parts of water-soluble calcium, water
0.1-1 parts of dissolubility magnesium, 20-25 parts of 2-3 parts of organic nitrogen, 8-15 parts of humus, 6-15 parts of binder and sustained release agent.In the present invention,
Humus is mainly derived from plant cellulose and handles acquisition, poly- (acrylic acid-CO- acrylamides) and kaolin by biofermentation
It is raw material that composite high-water-absorptivresin resin, which is using acrylic acid, ammonium hydroxide, acrylamide and kaolin, is prepared by water solution polymerization process
It obtains.
It is generally believed that when soil pH is up to 7.0 or more, clubroot incidence and occurring degree can all significantly reduce.But it is single
Pure adjusting soil pH value is difficult plasmodiophora brassicae spore activity present in complete inhibition or killing soil.Researcher's hair of the present invention
Existing, soil calcium deficiency aoxidizes hypocalcia, and heavy soil is conducive to clubroot.Calcium salt can adjust soil to a certain extent
PH, while commutative Ca in soil can be increased again2+Concentration to mitigate the harm of disease.In addition, working as soil exchangeable calcium
Concentration is 1.21 × 10-3Mol/Kg to 1 × 10-2It can be stimulated when mol/Kg, induce pathogen plasmodiophora spore germination, preceding make non-post
The Ca of this section concentration is applied during main plant growth2+, pathogen plasmodiophora resting spore in soil can be promoted to sprout, at this time spore
Dead due to can not find Cruciferae host after sprouting, this method can reduce pathogen plasmodiophora dormant spore concentration in soil, have
Effect reduces primary source of infection, makees the incidence of crop in cruciferae clubroot after mitigation, so as to solve crop in cruciferae root
Swell disease.However, Ca2+Too fast release can cause Ca2+Uneven distribution in the soil leads to some areas in soil
Pathogen plasmodiophora spore can not sprout, to reduce the control effect of clubroot.The present invention is it was discovered by researchers that using poly-
(acrylic acid-CO- acrylamides) and Kaolin Composite Super Absorbent Resin can adsorb water-soluble calcium, and it is water-soluble to reach slow release
The effect of property calcium, extends low concentration Ca2+Induce the time of spore germination.A little water solubility Mg2+With Ca2+While apply can
Increase the speed of spore germination to a certain extent.The application of humus, directly increases soil organic matter content, avoids soil plate
Knot increases soil aeration rate, further decreases clubroot incidence.
The clubroot that the soil conditioner of the present invention is suitable for crop in cruciferae prevents, particularly suitable for rice and ten
The field of Zi Hua sections shift of crops.Generally after rice transplanting in 10-20 days, using soil conditioner 450Kg/ of the present invention
hm2-750Kg/hm2.Since in rice cropping season, substantially without crucifer, the application of conditioner is promoting rice striking root
While, pathogen plasmodiophora spore germination in soil can be induced.Since clubroot only infects the root of crucifer, at this time
The spore sprouted is induced because can not find host, lacking nutrition supplying donor for a long time and be inactivated, to reduce knee in soil
Germ resting spore quantity (pathogen quantity can reduce by 1/5 to 1/3 in soil) reaches and reduces pathogen quantity in soil, drop
Make the generation of crucifer clubroot after low.
Product of the present invention using when without doing any processing, after directly shedding field, the ingredient of reagent is from soil surface
Slowly melt to deep layer, discharge, sink, you can plays a role.
Soil conditioner of the present invention contains sustained release agent, is detected using soil note leaching method, is tested with sustained release agent is not added with
Group is compared, and the leaching rate of water-soluble calcium reduces 32%, it was demonstrated that conditioner of the present invention has the characteristics that sustained release.
Soil conditioner usage amount of the present invention is 450Kg/hm2-750Kg/hm2, the water-soluble calcium contained in preparation exists
Energy slow release under the controlled release of sustained release agent, is in 1.21 × 10 when the water-soluble calcium concentration in release to soil can be made long- 3mol/Kg-1×10-2Mol/Kg this can effectively facilitate within the concentration ranges of spore germination；When water-soluble calcium continues to discharge,
When so that the water-soluble calcium concentration in soil being higher than this section concentration, the water-soluble calcium of high concentration can effectively adjust soil again
PH, to play the effect of inducing spore germination and adjusting soil pH.
Existing soil conditioning technology, such as addition lime have certain effect to prevention clubroot, but directly by soil
The influences such as condition, humidity exist simultaneously easy burn seedlings, and the difference on effect under different soil is very big, and chemical pesticide also has
The effective deficiency for being difficult to accurate evaluation.Soil conditioner is directly applied rice terrace by the present invention, then slow mechanism dissolved and uniformly
It is distributed to paddy soil and gradually penetrates into soil, have method of administration simplicity, conditioner finely dispersed excellent in the soil
Point.
Preferably, by weight, raw material includes：70-80 parts of water-soluble calcium, 0.1-1 parts of water soluble magnesium, organic nitrogen 4-5
Part, 8-15 parts of humus, 6-15 parts of sodium alginate binder and poly- (acrylic acid-CO- acrylamides) and the compound high suction of kaolin
20-25 parts of water-base resin sustained release agent.5-20 days period of seedling establishments of crop shoot transplanting equipment require supplementation with nitrogenous fertilizer, and nitrogenous fertilizer is added to by the present invention
In conditioner, paddy growth necessary nitrogenous fertilizer is also supplemented while preventing clubroot, plays applied once multiple efficacies
Effect.
Preferably, the water-soluble calcium is calcium nitrate and/or calcium oxide, and water soluble magnesium is magnesium sulfate, and organic nitrogen is nitrogen
Fertilizer, binder are sodium alginate, and sustained release agent is poly- (acrylic acid-CO- acrylamides) and Kaolin Composite Super Absorbent Resin.This
In invention, agricultural grade can be used in water-soluble calcium, water soluble magnesium etc..
It is a further object to provide a kind of methods preparing the soil conditioner, include the following steps：
(1) by weight, 70-80 parts of water-soluble calciums and 20-25 parts of sustained release agents are taken, by solid and liquid weight ratio after mixing well
1:0.5 to 1:Water is added in 1 ratio, stirs evenly；
(2) after the 60%-70% that step (1) resulting material is dried to original moisture, by weight, 0.1-1 parts are added
Water soluble magnesium, 8-15 part humus, 6-15 parts of binders, by solid and liquid weight than 1 after mixing well:0.3 to 1:0.5 ratio is added
Water stirs evenly；
(3) step (2) resulting material is suppressed by granulator and is pelletized, drying sieving；
(4) organic nitrogen and water are pressed into solid and liquid weight than 1:0.3 to 1:0.5 ratio mixes, and stirs evenly, passes through coating machine packet
Particle surface obtained by step (3) is overlayed on, discharging both obtained.
Preferably, the grain diameter of soil conditioner is 3-7mm.Traditional nitrogenous fertilizer is mostly fine particle, needs application of going to the field,
And particle melts soon, be easy to cause using uneven and high local concentrations, causes damages to crop；The present invention is in soil conditioner
Simultaneously larger particles are made in middle addition sustained release agent, it is only necessary to which standing to lose on field side can dish out relatively at a distance, and conditioner release is slow
Slowly, mildly, fertilizer efficiency is held time longer, crop can be helped preferably to turn green.
Third purpose of the present invention is to provide application of the soil conditioner in terms of preventing rapeseed clubroot.Cruciate flower
Section crop, especially rape, preceding crop is mainly based on rice, after rice transplanting in 10-20 days, using this soil conditioning
Agent 450Kg/hm2-750Kg/hm2, in use, uniformly shedding particle to field.
Compared with prior art, the present invention also has following remarkable advantage to the present invention：
(1) chemical pesticide is free of, it is nontoxic to crops, it is free from environmental pollution, it is good for the environment and food security, uses
It is not influenced by geological conditions, soil environment, the control effect of clubroot is protruded and is stablized.
(2) soil hardening and environmental pollution are not easily caused, cause of disease amount in soil, the pre- diseases prevention from source are fundamentally reduced
Evil occurs, and while preventing clubroot, also has the function of increasing soil fertility, promotes plant growth.
(3) the water-soluble calcium release in conditioner is slow, avoids Ca2+Uneven distribution in the soil.
(4) applied once, in rice and rape rotation, two seasons are effective, and at low cost, sufficient raw, produce work
Skill is simple, gets twice the result with half the effort.
(5) method of administration is simplified, application technique is simple, safe ready.
Specific implementation mode
The present invention is specifically described below by embodiment, it is necessary to which indicated herein is that following embodiment is only used
It is further detailed in the present invention, should not be understood as limiting the scope of the invention, which is skilled in technique
Personnel still fall within protection scope of the present invention according to some nonessential modifications and adaptations that foregoing invention content is made.
Embodiment 1
Calcium nitrate is weighed by weight and/or 70 parts of calcium oxide is compound with poly- (acrylic acid-CO- acrylamides) and kaolin
20 parts of super absorbent resin sustained release agent, by solid and liquid weight than 1 after mixing well:Water is added in 1 ratio, stirs evenly, by gains
Material dries the 70% of original moisture；By weight, be added 0.7 part of magnesium sulfate, 15 parts of humus, 9 parts of sodium alginate binder,
2 parts of nitrogenous fertilizer, by solid and liquid weight than 1 after mixing well:Water is added in 0.3 ratio, stirs evenly, resulting material is passed through granulator pressure
Particle, grain diameter 3mm, drying sieving, packing is made.
Embodiment 2
Calcium nitrate is weighed by weight and/or 80 parts of calcium oxide is compound with poly- (acrylic acid-CO- acrylamides) and kaolin
20 parts of super absorbent resin sustained release agent, by solid and liquid weight than 1 after mixing well:Water is added in 0.8 ratio, stirs evenly, by gained
The 65% of the original moisture of drying materials；By weight, 0.8 part of magnesium sulfate, 12 parts of humus, sodium alginate binder 10 is added
Part, 3 parts of nitrogenous fertilizer, by solid and liquid weight than 1 after mixing well:Water is added in 0.3 ratio, stirs evenly, resulting material is passed through granulation
Machine is pressed into particle, grain diameter 4mm, drying sieving, packing.
Embodiment 3
Calcium nitrate is weighed by weight and/or 75 parts of calcium oxide is compound with poly- (acrylic acid-CO- acrylamides) and kaolin
25 parts of super absorbent resin sustained release agent, by solid and liquid weight than 1 after mixing well:Water is added in 1 ratio, stirs evenly, by gains
Material dries the 60% of original moisture；By weight, 1 part of magnesium sulfate, 10 parts of humus, 9 parts of sodium alginate binder, nitrogen is added
2 parts of fertilizer, by solid and liquid weight than 1 after mixing well:Water is added in 0.4 ratio, stirs evenly, resulting material is suppressed by granulator
At particle, grain diameter 5mm, drying sieving, packing.
Embodiment 4
Calcium nitrate is weighed by weight and/or 73 parts of calcium oxide is compound with poly- (acrylic acid-CO- acrylamides) and kaolin
22 parts of super absorbent resin sustained release agent, by solid and liquid weight than 1 after mixing well:Water is added in 0.5 ratio, stirs evenly, by gained
The 65% of the original moisture of drying materials；By weight, be added 1 part of magnesium sulfate, 8 parts of humus, 11 parts of sodium alginate binder,
3 parts of nitrogenous fertilizer, by solid and liquid weight than 1 after mixing well:Water is added in 0.4 ratio, stirs evenly, resulting material is passed through granulator pressure
Particle, grain diameter 6mm, drying sieving, packing is made.
Embodiment 5
Calcium nitrate is weighed by weight and/or 70 parts of calcium oxide is compound with poly- (acrylic acid-CO- acrylamides) and kaolin
24 parts of super absorbent resin sustained release agent, by solid and liquid weight than 1 after mixing well:Water is added in 1 ratio, stirs evenly, by gains
Material dries the 65% of original moisture；By weight, 0.5 part of magnesium sulfate, 10 parts of humus, sodium alginate binder 12 is added
Part, 2 parts of nitrogenous fertilizer, by solid and liquid weight than 1 after mixing well:Water is added in 0.5 ratio, stirs evenly, resulting material is passed through granulation
Machine is pressed into particle, grain diameter 7mm, drying sieving, packing.
Embodiment 6
Calcium nitrate is weighed by weight and/or 79 parts of calcium oxide is compound with poly- (acrylic acid-CO- acrylamides) and kaolin
23 parts of super absorbent resin sustained release agent, by solid and liquid weight than 1 after mixing well:Water is added in 0.6 ratio, stirs evenly, by gained
The 70% of the original moisture of drying materials；By weight, 0.7 part of magnesium sulfate, 6 parts of humus, sodium alginate binder 8 is added
Part, 3 parts of nitrogenous fertilizer, by solid and liquid weight than 1 after mixing well:Water is added in 0.5 ratio, stirs evenly, resulting material is passed through granulation
Machine is pressed into particle, grain diameter 7mm, drying sieving, packing.
Experimental example 1
In Guanghan City towns Xi Gao, application prepares soil conditioner 750Kg/hm prepared by embodiment 12, preceding to make increasing production of rice
18%, after rice harvesting, soil clubroot resting spore quantity reduces by 30%, and seedling stage clubroot incidence reduces after rape cultivation
55%.
Experimental example 2
In Guanghan City towns Xi Gao rice-rape rotation, application prepares soil conditioner 450Kg/ prepared by embodiment 6
hm2, preceding to make increasing production of rice 22%, after rice harvesting, soil clubroot resting spore quantity reduces by 45%, Cultivated rapeseed seedling stage root
Swollen disease incidence reduces by 58%.
Claims (5)
1. a kind of soil conditioner of prevention rapeseed clubroot, which is characterized in that by weight, raw material includes：Water-soluble calcium
70-80 parts, 0.1-1 parts of water soluble magnesium, 20-25 parts of 2-3 parts of organic nitrogen, 8-15 parts of humus, 6-15 parts of binder and sustained release agent.
2. soil conditioner according to claim 1, which is characterized in that the water-soluble calcium is calcium nitrate and/or oxygen
Change calcium, water soluble magnesium is magnesium sulfate, and organic nitrogen is nitrogenous fertilizer, and binder is sodium alginate, and sustained release agent is poly- (acrylic acid-CO- propylene
Amide) and Kaolin Composite Super Absorbent Resin.
3. according to the preparation method of soil conditioner described in claim any one of 1-2, which is characterized in that including following step
Suddenly：
(1) by weight, 70-80 parts of water-soluble calciums and 20-25 parts of sustained release agents are taken, by solid and liquid weight than 1 after mixing well:
0.5 to 1:Water is added in 1 ratio, stirs evenly；
(2) after the 60%-70% that step (1) resulting material is dried to original moisture, by weight, 0.1-1 parts of addition is water-soluble
Property magnesium, 8-15 parts of humus, 6-15 parts of binders, by solid and liquid weight than 1 after mixing well:0.3 to 1:Water is added in 0.5 ratio,
It stirs evenly；
(3) step (2) resulting material is suppressed by granulator and is pelletized, drying sieving；
(4) organic nitrogen and water are pressed into solid and liquid weight than 1:0.3 to 1:0.5 ratio mixes, and stirs evenly, is coated on by coating machine
Particle surface obtained by step (3), discharging, both.
4. according to the preparation method in claim 3, which is characterized in that the grain diameter is 3-7mm.
5. a kind of according to application of the soil conditioner in terms of preventing rapeseed clubroot described in claim any one of 1-2.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111670740A (en) * | 2020-06-19 | 2020-09-18 | 四川省农业科学院植物保护研究所 | Soil conditioning method for preventing and treating rape clubroot |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104004526A (en) * | 2014-06-16 | 2014-08-27 | 四川省农业科学院植物保护研究所 | Soil conditioner for preventing and treating clubroot diseases of cruciferae crops, and preparing method and application of soil conditioner |
-
2018
- 2018-04-12 CN CN201810324361.XA patent/CN108384557A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104004526A (en) * | 2014-06-16 | 2014-08-27 | 四川省农业科学院植物保护研究所 | Soil conditioner for preventing and treating clubroot diseases of cruciferae crops, and preparing method and application of soil conditioner |
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| CN111670740A (en) * | 2020-06-19 | 2020-09-18 | 四川省农业科学院植物保护研究所 | Soil conditioning method for preventing and treating rape clubroot |
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Application publication date: 20180810 |