CN1276361A - Long-acting compound organic fertilizer and its preparing process - Google Patents
Long-acting compound organic fertilizer and its preparing process Download PDFInfo
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- CN1276361A CN1276361A CN 99108055 CN99108055A CN1276361A CN 1276361 A CN1276361 A CN 1276361A CN 99108055 CN99108055 CN 99108055 CN 99108055 A CN99108055 A CN 99108055A CN 1276361 A CN1276361 A CN 1276361A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F11/00—Other organic fertilisers
- C05F11/08—Organic fertilisers containing added bacterial cultures, mycelia or the like
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Abstract
A long-acting granular compound organic fertilizer is prepared from organic substances, inorganic substances, functional microbes, middle and trace elements, activator and binder through breaking, fermentation, mixing, granulating,drying and sieving. It has size of 1-4.75 mm and compression strength of 4-5 newtons. Its advantages are long acting and high fertility, high effect on increasing yield, improving soil and crops quality, less environmental pollution and increasing the resistance of crops to pests and diseases.
Description
The present invention is a kind of compoiste fertilizer that contains fertilizer, inorganic fertilizer, microorganism, middle trace element and activated material and preparation method thereof.
As everyone knows, except that weather and pest disaster, can crop show the species advantage to greatest extent, depends on the result of soil, kind and fertilizer three coordinative role.Over the past thousands of years, soil is utilized by people's long-term planting, and the natural nutrient that can be made for the thing absorption is fewer and feweri, and fertilizer just becomes the main source that replenishes the required nutriment of plant.People's animal manure material in the fertilizer once was the main body of China's agricultural fertilizer, and the soil aggregate of application of organic fertilizers improves, and organic matter accumulation increases, good product quality, and weak point is a resource-constrained, and fertilizer efficiency is slow, and volume is big, transportation inconvenience; Inorganic fertilizer is nitrogenous, phosphorus, potassium effective ingredient height, can be singly with or mix and execute, fertilizer efficiency is fast, fertility is strong, weak point is easily by the rainwater leaching loss, effective rate of utilization is low, fertilizer efficiency is short, the long-term application soil compaction, crop quality is relatively poor; Bacterium fertilizer is more common in foliage-spray, is used for soil and can plays fixed nitrogen or discharge be fixed fertile plain from the decomposition of mineral material, replenishes required N, the P of plant
2O
5, K
2Nutrients such as O since half a century, have been used inorganic fertilizer and have been occupied an leading position, often use fertile because of non-science, macroelement is fixed in the soil, and the environment as long as the soil of the suitable bacterial growth of construction is dwelt constantly manually applies potassium decomposing, phosphorus decomposing, separates nitrogen benefit bacterium quantity, the long-acting of bacterial manure can be fully played, but the production technology difficulty of functional microorganism preparation is bigger, bacterial manure storage period weak point, and bacterium vigor and biological effect are affected by environment big, fertilizer efficiency is not high, can only be as the auxiliary source of manure.Plant-growth also be unable to do without beneficial elements such as middle trace element such as manganese, iron, zinc, molybdenum, boron and silicon, cobalt, selenium except that three kinds of macroelement the most basic.Facts have proved that after little fertilizer such as ammonium molybdate was manured into soil with extremely low concentration, leguminous crop just can obtain remarkable volume increase; The soil manganese deficiency, crop chlorophyll reduces, and the activity of plurality of enzymes reduces in the body, and nitrogen utilization and protein synthesis are affected; Cobalt and rare earth etc. are most important to the formation of tricarboxylic acid cycle system and plurality of enzymes; Adenine kind bacterial metabolism material, to the short length and the absorption of root system of plant, active extremely strong.Middle trace element fertilizer and activated material are indispensable to plant growth, but can only do to replenish the source of manure, the careful usefulness of science.How to overcome the defective of above-mentioned fertilizer or reduce the side effect that long-term unreasonable fertilising brings, just fertilizer expert, environmental ecology scholar and numerous agro-technicians' common concern and the problem researched and solved.
The purpose of this invention is to provide that a kind of fertilizer efficiency that contains organic material, inorganic fertilizer, middle trace element, bacterial manure and activated material is long, fertility is high, can improve long-acting compound organic fertilizer of crop quality and Soil structure and preparation method thereof.
Main technical schemes of the present invention: a certain amount of fertilizer, inorganic fertilizer, middle trace element, microorganism and activated material by pulverizing, fermentation, mixing, granulation, drying, screening, are made granular product.
The composition of composite fertilizer of the present invention and content thereof (meter by weight):
15～30 parts of organic materialss
50～55 parts in mineral manure
0.3～0.5 part of functional microorganism
0～2.5 part of middle trace element
0.1～0.3 part of activator
10～18 parts in tackiness agent.
The preparation method of composite fertilizer of the present invention may further comprise the steps:
1. functional microorganism, activator, organic materials are mixed by proportioning and be placed in the fermentation vat,,, be processed into every gram and contain 0.3～0.5 hundred million functional microorganism organic materials 20～25 ℃ of bottom fermentations 25～30 days with the plastics film sealing;
With (1) step contain the functional microorganism organic materials with through the pulverizing mineral manure, middle trace element and tackiness agent mix, stir, again through granulation, promptly to obtain water content 70～80 ℃ of down dry, screenings be that 5～8% (weight), compressive resistance 4～5 newton, diameter are the granular long-acting compound organic fertilizer product of 1.00～4.75mm.
Organic materials of the present invention comprises a kind of, two or more mixture in rapeseed cake, cottonseed cake, tung oil tree seedcake, xanthohumic acid raw material, the crab oyster shell whiting, and described xanthohumic acid raw material comprises weathered coal, peat, the peat composed of rotten mosses or brown coal.The xanthohumic acid raw material is functional microorganism existence and the carrier of breeding, its aqueous solution is xanthohumic acid, the throw out that forms in acid soil is brown rot acid, it has the hold concurrently function of plant growth regulating of fertilizer, can stimulate plant growth, improve the activity and the chlorophyll content of plurality of enzymes, strengthen crop assimilation and disease-resistant anti-adversity ability, can also the complexing various trace elements absorb in addition for root system.
Inorganic fertilizer of the present invention, can be selected from a kind of, two or more the mixture that comprise in urea, ammonium nitrate, ammonium chloride, ammonium phosphate, fused(calcium magnesium)phosphate, calcium superphosphate, coarse whiting, Repone K, the vitriolate of tartar according to the requirement of kind and the different growing thereof of crop.Above-mentioned inorganic fertilizer all is commercially available.
Functional microorganism of the present invention is that being selected from the polynary Azobacter of fixed nitrogen, potassium decomposing, phosphorus decomposing ability is silicate bacteria (Bacillus mucilaginosus subsp.nova siliceus) and/or bacillus licheniformis (Bacillus licheniformis (Weigmann) Chester emend.cibson), two kinds of functional microorganisms can anti-60～80 ℃ of temperature, the every gram of viable bacteria is no less than 200,000,000 in the solid culture, and the purification of bacterial strain, preservation and microbial preparation technology such as multistage liquid cultivation, solid absorption are known technologies.Silicate bacteria is stored in academy of agricultural sciences agricultural microbial strains preservation administrative center, preserving number ACCC10014 (Chen Yanwei etc., microorganism, 2 (3), 1960]; Bacillus licheniformis is stored in Institute of Micro-biology of Chinese Academy of Sciences common micro-organisms culture presevation administrative center, preserving number AS1.518.These two kinds of bacteriums except decompositing three kinds of macroelement that are fixed, wherein fixed nitrogen brood cell liver bacterium also metabolism produce Plant hormones regulators,gibberellins class material, stimulate the crop root growth; Lichens brood cell bacterium can produce activated material and many phthaleins microbiotic such as zeatin, phytokinin, alkaline phosphatase, proteolytic enzyme, microbiotic has strong restraining effect to vegetation pathogenic fungi in the soil and encountered pathogenic bacterium, causes fertilizer of the present invention to have certain protection effect.
Trace element is to select according to crop varieties in of the present invention, can be selected from a kind of, two or more the mixture that comprise in ten water Sodium Tetraboratees, Zinc Sulphate Heptahydrate, seven water manganous sulfates, cupric sulfate pentahydrate, iron vitriol, four water ammonium molybdates or the water Sodium orthomolybdate.
Activator of the present invention comprises that reaching functional microorganism in agricultural rare-earth, Xiao Suangu, cobalt dichloride, adenine kind, the potassium phosphate,monobasic more than two or three comprises zeatin, phytokinin, Plant hormones regulators,gibberellins or alkaline phosphatase at the meta-bolites of fermenting process.Activator can promote plant-growth or functional microorganism is played active function, wherein K
2HPO
4But the multiplication activity of enhancement function microorganism, adenine kind can stimulate the growth and the absorptive function of root, and rare earth and cobalt chloride etc. is a stimulating plant substance in vivo round-robin activator.
Tackiness agent of the present invention is the clay used of potting or/and yellow clay 150～200 purpose dry powder, and main effect is the hardness that is used for the bonding of fertilizer and strengthens fertiliser granulates.
Fermentation vat of the present invention is that a kind of Dan Chilian by a plurality of " Jiong " type builds, the single high 2.0～2.5m in pond, wide 3.0～3.5m, the bottom is with sidewall spacing 1.5m and have ventilation intensification groove, the dark 15cm of its kerve, wide 10cm, wall groove depth 10cm, the built-in dim pipe of heating of groove, the ventilative iron plate that the groove face bedding is with holes, the heating heating coil matches with the boiler of 1.5 measurement tons.After each fermentation ends was taken out material, fermentation vat should in time clean totally.
The advantage of composite fertilizer of the present invention and effect:
The long-acting compound organic fertilizer that the present invention produces, the test of successively on more or less a hundred of provinces such as Guizhou, Yunnan, Sichuan, Guangdong, Shandong, Hubei Different Crop being done, demonstration show: with the together fertile part of conventional inorganic fertilizer, same weight, same price comparison, consistently show that fertilizer efficiency is long, fertility is high, obvious effect of increasing production, use that the back soil organic matter content increases, the soil-borne disease hazard rating alleviates advantages such as crop good product quality.This long-acting compound organic fertilizer product and ternary inorganic composite fertilizer relatively can make that to wait leaf-size class you can well imagine on the tobacco roasting leaf high by 26.4～52.5%, and the middle grade leaf improves 12.3～38.7: can make wheat increase yield 6.2～14.1%: watermelon sugar part can be improved 0.6～2.0 degree; Booth vegetable volume increase 6.1～12.5%.
In the existing compoiste fertilizer technology, following example is arranged:
Publication number is that the applicant has proposed a kind of biological organic complex fertilizer in the specification sheets of CN1124237A (on June 12nd, 96 is open).It is an isolated strong vigor silicate potassium solubilizing bacteria from the southern field of vegetables of the Liao Dynasty, and single culture is cultivated into biotechnological formulation, makes carrier with the brown coal of 40-60%, and the inorganic fertilizer of compound 20-40% is made product.This bio-fertilizer is characterized by on " bacterial manure " function, the inorganic fertilizer function relatively a little less than.
The present invention is owing to add activator, effectively promote crop root growth and absorption, promote the circulation of crop substance in vivo, and under the prerequisite that keeps the inorganic composite fertilizer advantage, overcome its deficiency, incorporate the comprehensive advantage of fertilizer, bacterial manure, middle trace element and activated material simultaneously.
Further specify characteristics of the present invention below by specific examples.
Example 1
85 kilograms of canolas of weighing, 30 kilograms of crab oyster shell whitings, 100 kilograms of weathered coals, 4 kilograms of silicate bacterias produce kind, 1 kilogram of bacillus licheniformis production kind, 0.5 kilogram of agricultural rare-earth, 0.5 kilogram of cobalt dichloride, 1 kilogram of VITAMIN B4 and 1 kilogram of K
2HPO
4, fully stir evenly and be placed in the fermentation vat, cover with plastics film, fermented 28 days, obtain the fermentation organic mixture material that every gram contains 0.4 hundred million functional microorganism bacterial classifications;
Even behind 85 kilograms in weighing urea, 125 kilograms of ammonium nitrates, 50 kilograms of coarse whitings, 45 kilograms in Repone K, 240 kilograms of vitriolate of tartar, 132 kilograms in ammonium phosphate and 100 kilograms of separated pulverizing of white potter's clay with fermentation organic mixture material thorough mixing, through be dried to the particle water-content after the granulation under 75 ± 5 ℃ is 5%, promptly obtains the granulated product A that compressive resistance is 5N through screening again.
Example 2
The composition (meter by weight) that this example is used: urea 26, ammonium nitrate 6.5, coarse whiting 19, Repone K 12, weathered coal 10, tung oil seed cake powder 10, crab shell powder 0.6, silicate bacteria 0.3, bacillus licheniformis 0.1, agricultural rare-earth 0.05, cobalt dichloride 0.05, VITAMIN B4 0.05, potassium phosphate,monobasic 0.05, white potter's clay 13.4, Zinc Sulphate Heptahydrate 1.5, cupric sulfate pentahydrate 0.5.
Experimentation and condition obtain the product B of compressive resistance 5N with example 1.
Example 3
The composition (meter by weight) that this example is used: urea 15.5, ammonium nitrate 6, Repone K 7, vitriolate of tartar 6, coarse whiting 5, fused(calcium magnesium)phosphate 15, brown coal 12, rapeseed cake powder 8, crab oyster shell whiting 10, zinc sulfate 1, manganous sulfate 1, ten water Sodium Tetraboratees 0.5, silicate bacteria 0.2, bacillus licheniformis 0.1, agricultural rare-earth 0.025, cobalt dichloride 0.025, VITAMIN B4 0.05, water and tackiness agent (yellow clay) 12.6.
Experimentation and condition are with example 1.Obtain the products C of compressive resistance 4N.
Be the use-testing situation of compound manure of the present invention below.
Example 4
This example is that example 1 product A is used to plant the flue-cured tobacco test.
The test area: the Majiang County, Guizhou, test conditions: 20 mu of cigarette ground, every mu is topdressed 50 kilograms; Test-results: the better-than-average rank of the tobacco leaf that toasts out accounts for 40.8%, medium rank 30.2%, inferior and etc. outer level account for 29%
Under same condition, use and all spare " section garden " board ternary inorganic composite fertilizer (its nutrient content: N=8%, the P that scientific and technological demonstration plant produces
2O
5=8%, K
2O=16%), consequently: go up grade 19.4%, middle grade 26.5%, inferior and etc. outer level 54.1%.Both compare, and use composite fertilizer of the present invention will increase production 23.08% than conventional ternary inorganic composite fertilizer.
15 mu of Wengan County, Guizhou demonstrations, mu fertilising 100kg.With 123.3～282.4 jin of the dried cigarettes of peasant household's per mu yield of long-acting compound organic fertilizer, its better-than-average level tobacco leaf 53.59～72.51%, middle grade tobacco leaf 10.63～32.24%, following grade cigarette 14.17～16.86%; Execute 104～175 jin on ternary inorganic composite fertilizer peasant household per mu yield tobacco leaf and go up the grade cigarette and account for 39.42～52.85%, the middle grade cigarette accounts for 11.5～19.75%, and is inferior and wait outer level cigarette 27.4～49.04%.Both compare, and use composite fertilizer of the present invention remarkable in economical benefits.
Example 5
This example is that example 2 product B are used to plant wheat, corn test.
1. the corn test is regional: the Guizhou Duyun City.Test conditions: corn field (planting flue-cured tobacco before this), every mu is applied fertilizer 50 kilograms.Test-results: 195 centimetres of corn plant heights, thick 2.3 centimetres of stem, 15.1 centimetres of female spike lengths, every fringe have corn 16.6 row, thick 5.7 centimetres of fringe, 435.0 kilograms of per mu yields.
Under similarity condition, use inorganic composite fertilizer (N=10%, P that the south of Guizhou Province, Guizhou state bureau of agriculture clay fertilizer station personal complete sets of Techniques composite fertilizer factory produces
2O
5=10%, K
2O=10%) test-results: 174 centimetres of plant heights, thick 1.8 centimetres of stem, 13.8 centimetres of spike lengths, thick 5.1 centimetres of every fringe 15.4 row, fringe, 324.0 kilograms of per mu yields.
2. in Anqiu City, Shandong wheat is done manure trial and demonstration the same year, with nutrient such as local market inorganic composite fertilizer work salable, etc. weight, etc. be worth comparative observation.On large-scale demonstration ground, use the fertilizer of product B of the present invention, average every per mu yield is 408.5 kilograms, uses " Sa Kefu " board inorganic fertilizer (N=15%, P that Qinhuangdao composite fertilizer factory produces
2O
5=15%, K
2O=15%) the fertilizer per mu yield is 386.5 kilograms, and uses long-acting compound organic fertilizer of the present invention, wheat plant not early ageing of later stage, and growing way is prosperous, and fertilizer efficiency is lasting, for fertile stable; The surrounding soil of root is organic to increase by 0.02～0.03%; Alkali-hydrolyzable nitrogen increases by 8.6～28.7mg/kg; Rapid available phosphorus increases by 0.8～2.5mg/kg; Available potassium increases by 3.5～8.2mg/kg; Pure N.P
2O
5.K
2The utilization ratio of O is compared with the inorganic composite fertilizer of using contrast and is exceeded 4.9%, 9.9% and 21.5% respectively.Long-acting compound organic fertilizer increases income 37.01 yuan than inorganic composite fertilizer per mu yield wheat 25.7kg of equal value.
Example 6
This example is to be used for the vegetables manure trial with example 3 products C fertilizer.
In Shenzhen's planting vegetable test, and inorganic composite fertilizer (N=15%, the P of " lion horse " board of producing with Germany of local import
2O
5=15%, K
2O=15%) compare the volume increase 7.1% of the blue or green volume increase 21.3% in Shanghai, Hei Yebai.The same year is in Anqiu City, Shandong Province booth vegetable test, products applied C fertilizer with nutrient inorganic composite fertilizer (" Sa Kefu " board inorganic composite fertilizer that adopts Qinhuangdao composite fertilizer factory to produce, nutrient content: N=15%, P such as execute
2O
5=15%, K
2O=15%) compare kidney bean mu volume increase 164.3kg, volume increase 6.8%; Green pepper mu volume increase 272kg, volume increase 16.5%; Crowndaisy chrysanthemum mu volume increase 166.6kg, volume increase 6.9%; Tomato mu volume increase 169.4kg, volume increase 7.8%; Cucumber mu volume increase 274.8kg, volume increase 9.6% is executed long-acting compound organic fertilizer of the present invention and is increased kidney bean 157kg than inorganic composite fertilizer mu with being worth simultaneous test, and stimulation ratio 6.1% increases income 392.5 yuan; Mu increases crowndaisy chrysanthemum 150kg, and stimulation ratio 6.3% increases income 570.0 yuan; Mu increases tomato 104.2kg, and stimulation ratio 4.6% increases income 218.8 yuan; Mu increases green pepper 221kg, and stimulation ratio 12.5% increases income 442 yuan; Mu increases cucumber 254.3kg, stimulation ratio 8.6%, increase income 508.6 yuan. in addition, use the fertilizer soil organism of the present invention and increase to 1.45% by original 1.43%, alkali-hydrolyzable nitrogen increases to 60.4mg/kg by original 58.6mg/kg, and rapid available phosphorus increases to 89.6mg/kg by 89.5mg/kg, and available potassium increases to 145mg/kg by 144.2mg/kg, illustrate that soil fertility increases, physicochemical character has had bigger improvement.
Claims (10)
1. long-acting compound organic fertilizer is characterized in that forming and content (meter by weight):
15～30 parts of organic materialss
50～65 parts in mineral manure
0.3～0.5 part of functional microorganism
0～2.5 part of middle trace element
0.1～0.3 part of activator
10～18 parts in tackiness agent.
2. according to the described composite fertilizer of claim 1, it is characterized in that described organic materials is selected from a kind of, two or more mixture that comprises in rapeseed cake, cottonseed cake, tung oil tree seedcake, xanthohumic acid raw material, the crab oyster shell whiting.
3. according to the described composite fertilizer of claim 2, it is characterized in that described xanthohumic acid raw material comprises weathered coal, peat, the peat composed of rotten mosses or brown coal.
4. according to the described composite fertilizer of claim 1, it is characterized in that described mineral manure is selected from a kind of, two or more mixture that comprises in urea, ammonium nitrate, ammonium chloride, ammonium phosphate, fused(calcium magnesium)phosphate, calcium superphosphate, coarse whiting, Repone K, the vitriolate of tartar.
5. according to the described composite fertilizer of claim 1, it is characterized in that described functional microorganism is silicate bacteria and/or bacillus licheniformis, in its solid culture, the every gram of viable count is no less than 200,000,000.
6. according to the described composite fertilizer of claim 1, it is characterized in that described middle trace element is selected from a kind of, two or more mixture that comprises in ten water Sodium Tetraboratees, Zinc Sulphate Heptahydrate, seven water manganous sulfates, cupric sulfate pentahydrate, iron vitriol, four water ammonium molybdates or the water Sodium orthomolybdate.
7. according to the described composite fertilizer of claim 1, it is characterized in that described activator: (A) in agricultural rare-earth, nitric acid brill, cobalt dichloride, adenine kind, the potassium phosphate,monobasic two or three, (B) meta-bolites of functional microorganism fermenting process comprises zeatin, phytokinin, Plant hormones regulators,gibberellins or alkaline phosphatase
8. according to the described composite fertilizer of claim 1, it is characterized in that described tackiness agent is that potting uses clay or/and yellow clay 150～200 order dry powder.
9. the preparation method of the described composite fertilizer of claim 1 is characterized in that preparation process is followed successively by:
(1) functional microorganism, activator, organic materials are mixed by proportioning is placed in the fermentation vat, cover,, be processed into every gram and contain 0.3～0.5 hundred million functional microorganism organic materials 20～25 ℃ of bottom fermentations 25～30 days with plastics film;
(2) with (1) step contain the functional microorganism organic materials with through the pulverizing mineral manure, middle trace element and tackiness agent mix, stir, through granulation, 70～80 ℃ of dry down, screenings, obtaining water content is that 5～8% (weight), diameter are 1.00～4.75mm, compressive resistance 4-5 newton's granular compoiste fertilizer.
10. in accordance with the method for claim 9, it is characterized in that described fermentation vat is that Dan Chilian by a plurality of " Jiong " type builds, the single high 2.0～2.5m in pond, wide 3.0～3.5m, the bottom is with sidewall spacing 1.5m and have ventilation intensification groove, the dark 15cm of its kerve, wide 10cm, wall groove depth 10cm, the built-in dim pipe of heating of groove, the ventilative iron plate that the groove face bedding is with holes.
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| CN 99108055 CN1276361A (en) | 1999-06-08 | 1999-06-08 | Long-acting compound organic fertilizer and its preparing process |
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| CN101971724A (en) * | 2010-08-25 | 2011-02-16 | 邹立基 | Method for controlling plant soil borne disease |
| CN102030574A (en) * | 2010-11-15 | 2011-04-27 | 内蒙古民族大学 | Fertilizer special for tomatoes in greenhouse and fertilizing method thereof |
| CN102140049A (en) * | 2011-05-07 | 2011-08-03 | 贵州元泰科技有限公司 | Water retention and sustained-release combined cup fertilizer |
| CN102584412A (en) * | 2011-01-10 | 2012-07-18 | 河南农飞生物科技有限公司 | Biological organic-inorganic mixed fertilizer |
| CN102653495A (en) * | 2012-04-09 | 2012-09-05 | 马鞍山科邦生态肥有限公司 | Drought resisting fertilizer specially used for corn and preparation method thereof |
| CN103396189A (en) * | 2013-07-31 | 2013-11-20 | 常熟市常福有机复合肥有限公司 | Marine biological organic fertilizer |
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| CN101971724A (en) * | 2010-08-25 | 2011-02-16 | 邹立基 | Method for controlling plant soil borne disease |
| CN101971724B (en) * | 2010-08-25 | 2012-02-29 | 邹立基 | Method for controlling plant soil borne disease |
| CN102030574A (en) * | 2010-11-15 | 2011-04-27 | 内蒙古民族大学 | Fertilizer special for tomatoes in greenhouse and fertilizing method thereof |
| CN102584412A (en) * | 2011-01-10 | 2012-07-18 | 河南农飞生物科技有限公司 | Biological organic-inorganic mixed fertilizer |
| CN102140049A (en) * | 2011-05-07 | 2011-08-03 | 贵州元泰科技有限公司 | Water retention and sustained-release combined cup fertilizer |
| CN102653495B (en) * | 2012-04-09 | 2014-07-09 | 马鞍山科邦生态肥有限公司 | Drought resisting fertilizer specially used for corn and preparation method thereof |
| CN102653495A (en) * | 2012-04-09 | 2012-09-05 | 马鞍山科邦生态肥有限公司 | Drought resisting fertilizer specially used for corn and preparation method thereof |
| EP2690080A1 (en) * | 2012-07-27 | 2014-01-29 | Fertiberia, S.A. | Fertilisers enriched with a humic-enzimatic solution rich in phosphatase enzymes and their manufacturing process |
| CN103396189A (en) * | 2013-07-31 | 2013-11-20 | 常熟市常福有机复合肥有限公司 | Marine biological organic fertilizer |
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