CN104761395A - Carbon-based fertilizer for improving cold resistance capability of shiny-leaved yellowhorn and preparation method thereof - Google Patents
Carbon-based fertilizer for improving cold resistance capability of shiny-leaved yellowhorn and preparation method thereof Download PDFInfo
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- CN104761395A CN104761395A CN201510201395.6A CN201510201395A CN104761395A CN 104761395 A CN104761395 A CN 104761395A CN 201510201395 A CN201510201395 A CN 201510201395A CN 104761395 A CN104761395 A CN 104761395A
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Abstract
The invention provides a carbon-based fertilizer for improving cold resistance capability of shiny-leaved yellowhorn and a preparation method thereof. The carbon-based fertilizer comprises, by weight, 15-23 parts of biomass charcoal, 1-14 parts of humic acid, 0.9-1.7 parts of microbial agent, 20-36 parts of nitrogen fertilizer, 7-14.5 parts of phosphatic fertilizer, 15-20 parts of potash fertilizer, 0-15 parts of mineral powder and 0.15-0.25 part of bonding agent. The preparation method of the carbon-based fertilizer comprises the steps of conducting mixing granulation on the nitrogen fertilizer, the phosphatic fertilizer, the potash fertilizer, the mineral powder and an appropriate amount of bonding agent to obtain first granules, adopting a granulation device to attach the humic acid to the surfaces of the first granules so as to obtain second granules, conducting mixing granulation on the biomass charcoal and the microbial agent to obtain third granules, conducting mixing granulation on the third granules and the balance bonding agent and performing drying to obtain a product. The survival rate, growing speed, fruit setting rate and oil ratio of the shiny-leaved yellowhorn in cold regions can be improved, and only one-time fertilization is needed.
Description
Technical field
The present invention relates to charcoal base fertilizer field, in particular to a kind of charcoal base manure material improving Wood of Shinyleaf Yellowhorn tolerance to cold and preparation method thereof.
Background technology
Wood of Shinyleaf Yellowhorn (Xanthoceras sorbifolia Bunge) is the distinctive woody oleiferous plants crop of northern China, is decided to be " bio-energy forest " by the State Administration of Forestry.Its seed oil length is 30% ~ 36%, grease is good and nutritious, oleic acid wherein in unsaturated fatty acids accounts for 52.8% ~ 53.3%, linolic acid accounts for 37.8% ~ 39.4%, in edible, medicinal, industrial or agricultural raw material, soil conservation, ecological afforestation, biomass energy etc., have important purposes.Greatly develop Wood of Shinyleaf Yellowhorn industry, to propelling energy substitution product, alleviate environmental pollution pressure, make full use of waste mountain waste, village, village periphery scattered plots of unutilized land resource, conserve water and soil losss, and change physical environment is of far-reaching significance.Although Wood of Shinyleaf Yellowhorn has characteristic that is barren-resistant, drought-resistant, Salt And Alkali Tolerance, tree-like little, poor growth limits its popularizing planting.Especially in severe cold area, grow slower.
In cold area popularizing plantation Wood of Shinyleaf Yellowhorn, research is both at home and abroad more concentrates on breeding, introduce a fine variety and cultivation technique aspect, and improves the report of Wood of Shinyleaf Yellowhorn tolerance to cold and productivity by measures of fertilizer and product not yet finds.
In view of this, special proposition the present invention.
Summary of the invention
The first object of the present invention is to provide a kind of charcoal base manure material improving Wood of Shinyleaf Yellowhorn tolerance to cold, described charcoal base manure material has raising carbon base in soil capacity, improve soil aggregate and nutrient element form, microorganisms/enzymes quantity and structure of community, and the function of slowly-releasing; Can reach the surviving rate, growth velocity, fruit-setting rate and the oil length that improve cold district Wood of Shinyleaf Yellowhorn plantation, and one is only the effect needing single fertilization.
The second object of the present invention is the preparation method of the charcoal base manure material providing a kind of described raising Wood of Shinyleaf Yellowhorn tolerance to cold; the method can either smoothly by miscellaneous composition granulation together; mineral manure and microbiobacterial agent can be intercepted again and open, protect the activity of microbiobacterial agent.
In order to realize above-mentioned purpose of the present invention, spy by the following technical solutions:
Improve a charcoal base manure material for Wood of Shinyleaf Yellowhorn tolerance to cold, by weight, comprise following composition: biomass charcoal 15-23 part, humic acids 1-14 part, microbiobacterial agent 0.9-1.7 part, nitrogenous fertilizer 20-36 part, phosphate fertilizer 7-14.5 part, potash fertilizer 15-20 part, mineral powder 0-15 part, binding agent 0.15-0.25 part.
The charcoal base manure material of above-mentioned raising Wood of Shinyleaf Yellowhorn tolerance to cold is the compound organic and inorganic fertilizer using biomass charcoal as major function carrier, eight kinds of compositions organically combine according to a certain percentage, reach the collaborative effect strengthened mutually, form a kind of collection and improve chemical available nutrient effect, synergistic agent excites the effect of soil enzymatic activities power, biomass charcoal base microbial inoculum ensures soil carbon source, improve soil aggregate and nutrient element form, microorganisms/enzymes quantity and structure of community, the effect of activation slow nutrient, excite Wood of Shinyleaf Yellowhorn plant hormone potential, improve the multifunctional product of nutritive substance exploitation speed in plant materials, reach the survival rate and growth speed improving cold district Wood of Shinyleaf Yellowhorn plantation, fruit-setting rate and oil length, and only need the effect of single fertilization.As can be seen here, above-mentioned fertilizer provides new way for improving Wood of Shinyleaf Yellowhorn tolerance to cold, broken microorganism and inorganic, organic fertilizer in conjunction with time height salinity restriction micro-organisms activity bottleneck.
In above-mentioned charcoal base manure material, humic acids both can activating soil enzyme, and improvement Soil structure, is beneficial to the growth of plant, with the complexing of metal ion in soil, fertilizer, can be beneficial to nutritive element and transmits to plant, can play slow releasing function again again.Biomass charcoal both can, as the bio-carrier of microbiobacterial agent, can provide again other nutritive element such as a large amount of carbon sources and a small amount of nitrogen, phosphorus, potassium.Microbiobacterial agent both can ensure enough carbon sources, can improve again soil aggregate, microorganisms/enzymes quantity and structure of community.Mineral powder can sweetening of the soil acid, improve granulation outcome.
In addition, above-mentioned charcoal base manure material is also applicable to the farm crop such as pine tree, oil tea, but has more specificity to Wood of Shinyleaf Yellowhorn.
Preferably, by weight, biomass charcoal 20-23 part, humic acids 1-6 part, microbiobacterial agent 1.1-1.5 part, nitrogenous fertilizer 24-36 part, phosphate fertilizer 10-16 part, potash fertilizer 17-20 part, mineral powder 5-14 part, binding agent 0.18-0.22 part.
Adopt the Wood of Shinyleaf Yellowhorn surviving rate of cold district during the fertilizer formula of above ratio higher, and slow release effect is also better.
Preferably, described biomass charcoal is made up of shinyleaf yellowhorn shell, and its mineral element ratio is applicable to Wood of Shinyleaf Yellowhorn demand more.
Preferably, described biomass charcoal is prepared from by following methods: first by shinyleaf yellowhorn shell cracking 2.5-3.5h at anoxybiotic, 400-450 DEG C, then pulverizes successively, crosses 80-120 mesh sieve.The biomass charcoal adopting the method to make is better to the adsorption effect of microbiobacterial agent, and can meet granulation requirement.
Preferably, described microbiobacterial agent is bacillus megaterium class, and it has effect of organophosphorus in soil of well degrading.
Preferably, described nitrogenous fertilizer is urea: it is a kind of neutral fertilizer, is applicable to various soil and plant, easily preserves, easy to use, little to the destruction of soil.
Preferably, described phosphate fertilizer is monoammonium phosphate and/or diammonium phosphate: effectively can supplement phosphoric, to meet the demand of plant growth, easily obtain, cheap.
Preferably, described potash fertilizer is potassium sulfate and/or Repone K, effectively can supplement potassium element, to meet the demand of plant growth, easily obtain, cheap.
Preferably, described mineral powder comprises limestone powder, can effectively sweetening of the soil is acid.
Preferably, described tackiness agent is sodium silicate solution and/or attapulgite, and Attapulgite stone flour has good absorption, cohesive action, to reach better granulation outcome and fertilizer slow release effect.
Preferably, the granularity of described mineral powder is more than 200 orders, easier granulation.
Preferably, described humic acids is xanthohumic acid; Plant stress-resistance ability can be improved, be easier to the activity of slow nutrient in activating soil and key enzyme, reach good synergism.
Preferably, the pH value of described humic acids is 6-7, granularity at 100-200 order, water-soluble >=98%; Have better consistency with soil, easier granulation, granulation cost is low.
Preferably, the particle diameter of the charcoal base manure material of described raising Wood of Shinyleaf Yellowhorn tolerance to cold is 3.5-5.5mm, and pH value is 7.0-8.0, and the fertilizer slow release effect of this granularity is better, and pH value crop preferably, to the absorption of nutrition, be easy to all even preservation of applying fertilizer, and stability is better.
Improve a preparation method for the charcoal base manure material of Wood of Shinyleaf Yellowhorn tolerance to cold, comprise the following steps:
Steps A: by described nitrogenous fertilizer, described phosphate fertilizer, described potash fertilizer, described mineral powder and appropriate described binding agent mixing granulation, obtain the first particle;
Step B: adopt granulating equipment described humic acids to be attached to the surface of described first particle, obtain the second particle;
Step C: by described biomass charcoal and described microbiobacterial agent mixing and absorption, obtaining take biomass charcoal as the bacterium powder of carrier;
Step D: by the described binding agent mixing granulation of described second particle, described bacterium powder and residual content, dries, obtains product.
The means of above-mentioned preparation method's layering granulation both smooth by miscellaneous composition granulation together, mineral manure and microbiobacterial agent are intercepted open again, protect the activity of microbiobacterial agent, prevent again the volatilization of nitrogen in nitrogenous fertilizer.
Preferably, the method for the granulation in described step D is: adopt granulating equipment that the described binding agent of described bacterium powder and residual content is attached to the surface of described second particle.So just can ensure humic acids and biomass charcoal double wrapped inorganic fertilizer, thus slow down nutrient release rate, improve slow release effect, reach the effect be only and need applied fertilizer once.
Preferably, binding agent used in described steps A is sodium silicate solution; Binding agent used in described step D is sodium silicate solution and attapulgite.Use attapulgite more can make full use of its absorption and adhesive property at skin.
Preferably, the method for granulation in described step D is: granulation obtains that granularity is 3.5-5.5mm, pH value is the particle of 7.0-8.0, be easy to all even preservation of applying fertilizer, and stability is better.
Preferably, described oven dry is less than 12% for drying to water content, meets GB.
Preferably, the granulation rate of granulating equipment used in described step B is more than 80%, to improve the uniformity coefficient of secondary coating.
Preferably, the method for granulation in described steps A is: first by described nitrogenous fertilizer, described phosphate fertilizer, described potash fertilizer, the mixing of described mineral powder, then sodium silicate solution is sprayed on granulation limit, limit; The method of granulation in described step D is: while described bacterium powder and attapulgite to be attached to the surface of described second particle, and sodium silicate solution is sprayed on limit.
Aforesaid method uses attapulgite at skin, more can make full use of its absorption and adhesive property.
Compared with prior art, beneficial effect of the present invention is:
(1) Wood of Shinyleaf Yellowhorn tolerance to cold is improved by measures of fertilizer, for Wood of Shinyleaf Yellowhorn plantation provides brand-new technique means.
(2) adopt unique process for formulating of humic acids and biomass charcoal, ensure that the indexs such as the outward appearance of fertilizer finished product and acidity meet Standard, enhance synergistic effect between raw material, thus improve fertilizer efficiency.
(3) adopt raw material order of addition and the granulation level of science, ensure that bacterial activity, nitrogen stability and granulation feasibility.
(4) achieve one and be only the object need applied fertilizer once.
(5) technical difficulty of biomass charcoal in prior art, humic acids, microbial inoculum and inorganic fertilizer mixing granulation is overcome.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.
Fig. 1 is the grain pattern schematic diagram of the charcoal base manure material of the raising Wood of Shinyleaf Yellowhorn tolerance to cold that embodiment 1 obtains.
Embodiment
Below in conjunction with embodiment, embodiment of the present invention are described in detail, but it will be understood to those of skill in the art that the following example only for illustration of the present invention, and should not be considered as limiting the scope of the invention.Unreceipted actual conditions person in embodiment, the condition of conveniently conditioned disjunction manufacturers suggestion is carried out.Agents useful for same or the unreceipted production firm person of instrument, be and can buy by commercially available the conventional products obtained.
Embodiment 1
By shinyleaf yellowhorn shell anoxybiotic cracking 2.5 hours at 450 DEG C, crossing 200 mesh sieves respectively after pulverizing, is that 20:1 mix with microbiobacterial agent with weight ratio by the biomass charcoal prepared.This is the 1st mixture;
Be carry out disc granulation after 36:10:20:13.8 mixes with weight ratio by urea, monoammonium phosphate, Repone K, limestone powder, in granulation process, evenly spray the sodium silicate solution that the appropriate concentration that accounts for gross weight 0.2% is.
By accounting for gross weight 1.2% xanthohumic acid, to join above-mentioned granulating rate be in the disk of 80%, continues granulation.
After above-mentioned humic acids parcel is even, adds and account for gross weight 15% the 1st mixture and account for gross weight 5% Attapulgite stone flour, continue granulation, evenly spray the sodium silicate solution of 0.2% in granulation process, after oven dry, namely obtain charcoal base manure material of the present invention.
This fertilizer pH is 7.2, and granularity is 5.3mm, and organic content is 27%, and nitrogen, phosphorus, potassium nutrition ratio are 18:5:12, and total nutrient content is 35%.
This routine biomass charcoal base manure material cultivates 30 days in soil, and as compared to contrast (bulk blended fertilizer by urea, monoammonium phosphate, Repone K and the 18:5:12 of limestone powder proportioning), in soil, ammonia nitrogen content improves 4.7-32.8%.6 washing tests results, compared with the control., SOIL ORGANIC NITROGEN content improves 11.3-18.1%, and total nitrogen content improves 14.4-21.6%.Can be used for the medium region on the lower side of fertilizer soil productivity in hillside, effect culture fertility can be reached, increasing Wood of Shinyleaf Yellowhorn winter hardiness, improve the yield and quality.
The structure of the fertilizer that above-described embodiment obtains as shown in Figure 1, comprises three layers, the first layer 1, the second layer 2, third layer 3.The layer that the first layer 1 is urea, monoammonium phosphate, Repone K, limestone powder mixing granulation are formed, the second layer 2 is xanthohumic acid layer, and third layer 3 is the coated layer of the 1st mixture.
Embodiment 2
By shinyleaf yellowhorn shell anoxybiotic cracking 2.5 hours at 450 DEG C, crossing 200 mesh sieves respectively after pulverizing, is that 16:1 mix with microbiobacterial agent with weight ratio by the biomass charcoal prepared.This is the 1st mixture.
Be carry out disc granulation after 32:9:20:13.5 mixes with weight ratio by urea, monoammonium phosphate, potassium sulfate, limestone powder, evenly spraying appropriate concentration in granulation process is the sodium silicate solution of 0.2%.
1.5% xanthohumic acid is joined in the disk of above-mentioned granulating rate 80%, continue granulation.
Comprise evenly until above-mentioned humic acids, add 18% 1st mixture and 5% Attapulgite stone flours, continue granulation, evenly spray the sodium silicate solution of 0.2% in granulation process, after oven dry, namely obtain the charcoal base manure material of the present invention.
This fertilizer pH is 7.5, and granularity is 5.0mm, and organic content is 29%, and npk nutrient ratio is 16:4:10, and total nutrient content is 30%.
This routine biomass charcoal base manure material cultivates 30 days in soil, and as compared to contrast (bulk blended fertilizer by urea, monoammonium phosphate, potassium sulfate and the 16:4:10 of limestone powder proportioning), in soil, ammonia nitrogen content improves 4.3-27.6%.6 washing tests results, compared with the control, SOIL ORGANIC NITROGEN content improves 9.1-16.5%, and total nitrogen content improves 11.1-18.7%.Can be used for the medium region on the upper side of fertilizer soil productivity in hillside, the effect stable soil fertility can be reached, increasing Wood of Shinyleaf Yellowhorn winter hardiness, improve the yield and quality.
Embodiment 3
By shinyleaf yellowhorn shell anoxybiotic cracking 3 hours at 400 DEG C, crossing 200 mesh sieves respectively after pulverizing, is that 22:1 mix with microbiobacterial agent with weight ratio by the biomass charcoal prepared.This is the 1st mixture.
Be carry out disc granulation after 35:12:20:8.4 mixes with weight ratio by urea, diammonium phosphate, potassium sulfate, limestone powder, in granulation process, evenly spray the sodium silicate solution of 0.2%.
1.0% xanthohumic acid is joined in the disk of above-mentioned granulating rate 80%, continue granulation.
Comprise evenly until above-mentioned humic acids, add 17% 1st mixture and 5.6% Attapulgite stone flours, continue granulation, evenly spraying appropriate concentration in granulation process is the sodium silicate solution of 0.2%, namely obtains the charcoal base manure material of the present invention after oven dry.
This fertilizer pH is 7.5, and granularity is 5.2mm, and organic content is 27%, and npk nutrient ratio is 18:5:10, and total nutrient content is 33%.
This routine biomass charcoal base manure material cultivates 30 days in soil, as compared to contrast (bulk blended fertilizer by urea, diammonium phosphate, potassium sulfate and the 18:5:10 of limestone powder proportioning), in soil, ammonia nitrogen content improves 3.6-28.4%, 6 washing tests results, SOIL ORGANIC NITROGEN content improves 8.3-14.4% compared with the control, and total nitrogen content improves 10.0-15.1%.Can be used for the region that in hillside, fertilizer soil productivity is poor, effect culture fertility can be reached, increasing Wood of Shinyleaf Yellowhorn winter hardiness, improve the yield and quality.
The formula of embodiment 4-8 is as shown in table 1, and the preparation method of these 3 kinds of fertilizer is with embodiment 1.
The charcoal base fertilizer formula of table 1 embodiment 4-8
Although illustrate and describe the present invention with specific embodiment, however it will be appreciated that can to make when not deviating from the spirit and scope of the present invention many other change and amendment.Therefore, this means to comprise all such changes and modifications belonged in the scope of the invention in the following claims.
Claims (10)
1. one kind is improved the charcoal base manure material of Wood of Shinyleaf Yellowhorn tolerance to cold, it is characterized in that, by weight, comprise following composition: biomass charcoal 15-23 part, humic acids 1-14 part, microbiobacterial agent 0.9-1.7 part, nitrogenous fertilizer 20-36 part, phosphate fertilizer 7-14.5 part, potash fertilizer 15-20 part, mineral powder 0-15 part, binding agent 0.15-0.25 part.
2. the charcoal base manure material of raising Wood of Shinyleaf Yellowhorn tolerance to cold according to claim 1, it is characterized in that, described biomass charcoal is made up of shinyleaf yellowhorn shell.
3. the charcoal base manure material of raising Wood of Shinyleaf Yellowhorn tolerance to cold according to claim 2, it is characterized in that, described biomass charcoal is prepared from by following methods:
First by shinyleaf yellowhorn shell cracking 2.5-3.5h at anoxybiotic, 400-450 DEG C, then pulverize successively, cross 80-120 mesh sieve.
4. the charcoal base manure material of raising Wood of Shinyleaf Yellowhorn tolerance to cold according to claim 1, is characterized in that, described microbiobacterial agent is bacillus megaterium class; Preferably, described nitrogenous fertilizer is urea; Preferably, described phosphate fertilizer is monoammonium phosphate and/or diammonium phosphate; Preferably, described potash fertilizer is potassium sulfate and/or Repone K; Preferably, described mineral powder is limestone powder; Preferably, described tackiness agent is sodium silicate solution and/or attapulgite; Preferably, described humic acids is xanthohumic acid; Preferably, the granularity of described mineral powder is more than 200 orders; Preferably, the pH value of described humic acids is 6-7, granularity at 100-200 order, water-soluble >=98%; Preferably, the particle diameter of the charcoal base manure material of described raising Wood of Shinyleaf Yellowhorn tolerance to cold is 3.5-5.5mm, and pH value is 7.0-8.0.
5. the preparation method of the charcoal base manure material of raising Wood of Shinyleaf Yellowhorn tolerance to cold according to claim 1, is characterized in that, comprise the following steps:
Steps A: by described nitrogenous fertilizer, described phosphate fertilizer, described potash fertilizer, described mineral powder and appropriate described binding agent mixing granulation, obtain the first particle;
Step B: adopt granulating equipment described humic acids to be attached to the surface of described first particle, obtain the second particle;
Step C: by described biomass charcoal and described microbiobacterial agent mixing and absorption, obtaining take biomass charcoal as the bacterium powder of carrier;
Step D: by the described binding agent mixing granulation of described second particle, described bacterium powder and residual content, dries, obtains product.
6. the preparation method of the charcoal base manure material of raising Wood of Shinyleaf Yellowhorn tolerance to cold according to claim 5, it is characterized in that, the method for the granulation in described step D is: adopt granulating equipment that the described binding agent of described bacterium powder and residual content is attached to the surface of described second particle.
7. the preparation method of the charcoal base manure material of raising Wood of Shinyleaf Yellowhorn tolerance to cold according to claim 5, is characterized in that, binding agent used in described steps A is sodium silicate solution; Binding agent used in described step D is sodium silicate solution and attapulgite.
8. the preparation method of the charcoal base manure material of raising Wood of Shinyleaf Yellowhorn tolerance to cold according to claim 5, is characterized in that, the method for granulation in described step D is: granulation obtains that granularity is 3.5-5.5mm, pH value is the particle of 7.0-8.0; Preferably, described oven dry is oven dry to water content is less than 12%.
9. the preparation method of the charcoal base manure material of raising Wood of Shinyleaf Yellowhorn tolerance to cold according to claim 5, is characterized in that, the granulation rate of granulating equipment used in described step B is more than 80%.
10. the preparation method of the charcoal base manure material of raising Wood of Shinyleaf Yellowhorn tolerance to cold according to claim 7, it is characterized in that, the method of granulation in described steps A is: first by described nitrogenous fertilizer, described phosphate fertilizer, described potash fertilizer, the mixing of described mineral powder, then sodium silicate solution is sprayed on granulation limit, limit; The method of granulation in described step D is: while described bacterium powder and attapulgite to be attached to the surface of described second particle, and sodium silicate solution is sprayed on limit.
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| CN106008096A (en) * | 2016-05-23 | 2016-10-12 | 魏占波 | Mixed functional water-soluble fertilizer |
| CN106083493A (en) * | 2016-06-13 | 2016-11-09 | 牡丹江师范学院 | A kind of composite microbiological fertilizer reducing Nicotiana tabacum L. underground pest and disease damage and preparation method thereof |
| CN106866312A (en) * | 2017-03-24 | 2017-06-20 | 广东瑞丰生态环境科技股份有限公司 | The keepalive method of a kind of microbial spores in high salt point fertilizer product and products thereof |
| CN107226765A (en) * | 2017-08-01 | 2017-10-03 | 天津市实验林场 | A kind of charcoal base slow-release nitrogen fertilizer and preparation method thereof |
| CN109516838A (en) * | 2019-01-30 | 2019-03-26 | 韩亚博 | A kind of water conservation Synergistic composite fertilizer and preparation method thereof |
| CN109627126A (en) * | 2019-01-30 | 2019-04-16 | 韩亚博 | A kind of high bioactivity slow-release fertilizer and preparation method |
| CN112409083A (en) * | 2020-12-04 | 2021-02-26 | 陕西天秦农产品开发有限公司 | Bacterial fertilizer for winter jujubes |
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| CN106008096A (en) * | 2016-05-23 | 2016-10-12 | 魏占波 | Mixed functional water-soluble fertilizer |
| CN106083493A (en) * | 2016-06-13 | 2016-11-09 | 牡丹江师范学院 | A kind of composite microbiological fertilizer reducing Nicotiana tabacum L. underground pest and disease damage and preparation method thereof |
| CN106866312A (en) * | 2017-03-24 | 2017-06-20 | 广东瑞丰生态环境科技股份有限公司 | The keepalive method of a kind of microbial spores in high salt point fertilizer product and products thereof |
| CN106866312B (en) * | 2017-03-24 | 2021-01-15 | 广东瑞丰生态环境科技股份有限公司 | Method for keeping microbial spores alive in high-salinity fertilizer product and product thereof |
| CN107226765A (en) * | 2017-08-01 | 2017-10-03 | 天津市实验林场 | A kind of charcoal base slow-release nitrogen fertilizer and preparation method thereof |
| CN109516838A (en) * | 2019-01-30 | 2019-03-26 | 韩亚博 | A kind of water conservation Synergistic composite fertilizer and preparation method thereof |
| CN109627126A (en) * | 2019-01-30 | 2019-04-16 | 韩亚博 | A kind of high bioactivity slow-release fertilizer and preparation method |
| CN109627126B (en) * | 2019-01-30 | 2021-08-27 | 毕节市丰古农业发展有限公司 | High-bioactivity slow release fertilizer and preparation method thereof |
| CN112409083A (en) * | 2020-12-04 | 2021-02-26 | 陕西天秦农产品开发有限公司 | Bacterial fertilizer for winter jujubes |
| CN114806592A (en) * | 2022-04-12 | 2022-07-29 | 核工业西南勘察设计研究院有限公司 | Composite soil passivator and preparation method thereof |
| CN114806592B (en) * | 2022-04-12 | 2023-08-15 | 核工业西南勘察设计研究院有限公司 | Composite soil passivating agent and preparation method thereof |
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Application publication date: 20150708 |