CN103274814B - Alkali-resistant fertilizer as well as preparation method and application thereof - Google Patents
Alkali-resistant fertilizer as well as preparation method and application thereof Download PDFInfo
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Abstract
The invention relates to an alkali-resistant fertilizer as well as a preparation method and application thereof. The alkali-resistant fertilizer comprises the following materials in parts by weight: 40-70 parts of high-tower nitro-sulfur-based compound fertilizer returning charge, 10-25 parts of calcium superphosphate and 20-35 parts of fulvic acid. The high-tower nitro-sulfur-based compound fertilizer is powder with a grain size being smaller than 1 millimeter and/or particle with the grain size being larger than 4.75 millimeters, wherein the powder or particle is sieved and separated out from high-tower pelletized compound fertilizer particles in high-tower nitro-sulfur-based compound fertilizer production. The alkali-resistant fertilizer is applicable of planting of inland saline-alkali soil crops and can be applied as a base fertilizer or an additional fertilizer. The invention further provides a co-production method of the high-tower nitro-sulfur-based compound fertilizer and an alkali-resistant fertilizer. According to the alkali-resistant fertilizer as well as the preparation method and the application thereof disclosed by the invention, the production of the high-tower nitro-sulfur-based compound fertilizer is combined with the production of the alkali-resistant fertilizer for the inland saline-alkali soil; the preparation is simple; the cost is saved; a phenomenon that the crop growth environment is worsened step by step as fertilizer is applied to the inland saline-alkali soil is reduced; and the utilization rate of the fertilizer nutrients is high.
Description
Technical field
The present invention relates to the coproduction of a kind of high tower nitrate-based compound fertilizer and be applicable to alkali resistant type fertilizer of inland saline-alkali soil and preparation method thereof and application, belong to fertilizer production technology field.
Background technology
Large-area inland saline-alkali soil is extensively distributing in arid, the semiarid zone of China, as the North China Plain of the Yellow River middle and lower reaches, the Inner Mongol and impact Plain, Ningxia, the interior basins such as Gansu, Qinghai, Xinjiang, the distant Plain of pine etc., although these inland saline-alkali soil saltiness differences, its common feature is in soil, to contain a large amount of bicarbonate ion (HCO
3 -), soil meta-alkalescence, pH value is 8～9.
The nitrogenous fertilizer of using in China's agriculture production, take urea as main, accounts for the more than 60% of whole nitrogenous fertilizer aggregate consumptions.The aqueous solution of urea is alkalescence, first changes into bicarbonate of ammonia (NH after being manured into soil
4hCO
3), ammonium ion is absorbed by crops, stays bicarbonate radical (HCO
3 -) in soil, this can cause the problem of three aspects:, the one, improve soil pH value, make original more serious with regard to the soil of meta-alkali; The 2nd, increase base cation bicarbonate radical (HCO in soil
3 -) content, be unfavorable for plant growth; Moreover, under alkaline condition, cause the volatilization loss of ammonia, reduce utilization rate of nitrogen fertilizer, contaminate environment.At present, about the improvement of the inland saline-alkali soil of high pH value is mainly by chemical modifying method, its modifying agent is roughly divided into two classes, and a class is calcareous material, as gypsum, phosphogypsum, calcium sulfite; Another kind of is acidic substance, and as black alum, weathered coal, furfural dregs etc., have good result.But the drawback of using soil improvement agent maximum is, is used as the chemical substance of the reparation use of soil alkaline composition, with soil in chemical substance react after produce novel substance, probably cause secondary soil pollution.Therefore, by adjusting the ion composition of fertilizer itself, reduce the impact of unfavorable composition on soil, be another approach of the inland reclamation of salinep-alkali soil as far as possible.CN1130165A(95110313.X) relate to improved fertilizer for hortriculture saline-alkali soil and preparation method thereof, be mainly get natural zeolite and multiple acidic fertilizier, acidulants dry blending method is made, organic soil improving agent is combined with inorganic soil improving agent, utilize acid-base neutralisation reaction principle, ion exchange principle, salt transforming principle, salt affected soil physics and chemistry is improved, flowers and trees are grown in saltings.CN1958527A (200510022006.X) discloses a kind of ammonium sulfite fertilizer, adopts phosphogypsum and nitrogenous fertilizer and/or potash fertilizer, nitrogen potash fertilizer to form by a certain percentage.Fertilizer has obvious effect of increasing production through field test, has solved the utilization of waste material, has saved resource, has solved phosphogypsum waste material and has taken up an area problem, has improved the pollution to environment.This product Main Function, in alkaline soil, to solve conventional fertilizer (as calcium superphosphate) when alkaline soil is applied, also makes soil accumulate year by year many P2O5, makes the rich phosphatization of soil, thereby causes soil compaction, stream pollution.CN101066901 (200710071997.X) is a kind of Soline alkali resisting rice fertilizer, is suitable for saltings, Heilongjiangdistrict and uses.This special fertilizer mainly contains the effective ingredient of following weight proportion: nitrogen 10-28%, phosphorus 5-10%, potassium 5-10%, sulphur 10-25%, amino acid/11-5%, humic acids 1-10%, middle micro-0-5%.To in above-mentioned raw materials, add clay as carrier, machinery mixes rear granulation and makes.
Above-mentioned fertilizer is mainly to utilize modifying agent, as phosphogypsum, furfural dregs etc. coordinate the object that reaches improvement inland saline-alkali soil with nutrient, and inorganic fertilizer raw material and the minor component that produces in soil thereof is not paid close attention to the impact of soil property.
High tower nitrate-based compound fertilizer is one of main fertilizer variety of China, it be take ammonium nitrate as major nitrogen source, potassium sulfate coordinates other fertilizer materials as main potassium source, by a kind of compound manure of high tower prilling explained hereafter.High tower nitrate-based compound fertilizer in process of production nearly 10% product particle particle diameter does not meet product standard, needs returning charge granulation again, wastes energy, and increases fertiliser production cost.
Summary of the invention
For the deficiencies in the prior art, the invention provides the coproduction of a kind of high tower nitrate-based compound fertilizer and be applicable to alkali resistant type fertilizer of inland saline-alkali soil and preparation method thereof.Raw material by approximately 10% returning charge in high tower nitrate-based compound fertilizer production process for fertilizer of the present invention, can save its process of melting again.
Term explanation:
High tower nitrate-based compound fertilizer: be one of composite fertilizer of China's production, utilize the principle of rapid crystallization after ammonium nitrate melting, take ammonium nitrate as major nitrogen source, potassium sulfate coordinates other fertilizer materials as main potassium source, by a kind of compound manure of high tower prilling explained hereafter.Compound fertilizer granules particle diameter 1-4.75mm is qualified product (GB15063-2009 composite fertilizer national standards).
Technical scheme of the present invention is as follows:
The coproduction of high tower nitrate-based compound fertilizer is applicable to the alkali resistant type fertilizer of inland saline-alkali soil, and raw materials quality part is as follows:
40～70 parts of high tower nitrate-based compound fertilizer returning charges, 10～25 parts of calcium superphosphate, 20～35 parts of xanthohumic acids.
Described high tower nitrate-based compound fertilizer returning charge is that the compound fertilizer granule of high tower prilling in high tower nitrate-based compound fertilizer production process is less than through the particle diameter that separates the particle that the powder of 1 millimeter and/or particle diameter are greater than 4.75 millimeters.
Described high tower nitrate-based compound fertilizer is made through high tower prilling by composite fertilizer material nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, trace element fertilizer and stopping composition, nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, trace element fertilizer, stopping composition are in 450～600: 70～120: 200～300: 6～12: 40～65 ratios are mixed, wherein, nitrogenous fertilizer is selected ammonium nitrate; Phosphate fertilizer is selected potassium primary phosphate, diammonium phosphate, monoammonium phosphate, calcium superphosphate one or a combination set of; Potash fertilizer is the combination of potassium sulfate or potassium sulfate and saltpetre; Trace element fertilizer is selected from zinc sulfate, boric acid, ammonium molybdate, copper sulfate, manganous sulfate one or a combination set of; Stopping composition is selected zeolite powder, wilkinite one or a combination set of.
According to the present invention, preferred, in high tower nitrate-based compound fertilizer raw material, phosphate fertilizer is selected the calcium superphosphate containing Vanadium Pentoxide in FLAKES 14～18wt%.
According to the present invention, preferred, the coproduction of high tower nitrate-based compound fertilizer is applicable to the alkali resistant type fertilizer of inland saline-alkali soil, and raw materials quality part is: 45～55 parts of high tower nitrate-based compound fertilizer returning charges, 18～22 parts of calcium superphosphate, 28～32 parts of xanthohumic acids.
According to the present invention, most preferred, the coproduction of high tower nitrate-based compound fertilizer is applicable to the alkali resistant type fertilizer of inland saline-alkali soil, and raw materials quality part is: 50 parts of high tower nitrate-based compound fertilizer returning charges, 20 parts of calcium superphosphate, 30 parts of xanthohumic acids.
According to the present invention, the coproduction of high tower nitrate-based compound fertilizer is applicable to the preparation method of the alkali resistant type fertilizer of inland saline-alkali soil, and step is as follows:
(1) produce high tower nitrate-based compound fertilizer by prior art, comprise composite fertilizer material nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, trace element fertilizer and stopping composition are mixed in proportion to heating and melting, melting charge slurry enters in prilling tower from the high column overhead churning of granulation, air intake at the bottom of tower, slip from tower top decline process with rise gas-flow resistance effect under drop to tower slowly at the bottom of, complete granulation.
(2) by the material screening after granulation, particle diameter conformance with standard 1～4.75mm as high tower nitrate-based compound fertilizer product; Particle diameter is greater than the macrobead of 4.75mm and is less than the fine powder of 1mm, i.e. high tower nitrate-based compound fertilizer returning charge.
(3) get in proportion the returning charge of high tower nitrate-based compound fertilizer and the calcium superphosphate of step (2), be added in shredder hopper and pulverize, then add xanthohumic acid, granulation, obtains the present invention and is applicable to the alkali resistant type fertilizer of inland saline-alkali soil.
According to the present invention, preferred in step (1), the mass parts formula of nitrate-based compound fertilizer raw material used is:
500 parts, ammonium nitrate, 80 parts of calcium superphosphate, 250 parts of potassium sulfate, 100 parts, saltpetre, 8 parts, zinc sulfate, 62 parts of wilkinites.
High tower nitrate-based compound fertilizer of the present invention coproduction is applicable to the application of the alkali resistant type fertilizer of inland saline-alkali soil, and as base manure or topdress and use, method is as follows:
Make base manure, evenly spread fertilizer over the fields behind ground and turn over and bury in crop sowing or before transplanting.Fertilizer amount: amount to into 25～35 kilograms every mu of purity nitrogens, Vanadium Pentoxide in FLAKES, potassium oxide total amount.Or,
Topdress, ditch spread (or spreading manuer in holes), 3～5 centimetres of the degree of depth, every mu of consumption is amounted to into 15～25 kilograms of purity nitrogens, Vanadium Pentoxide in FLAKES, potassium oxide total amount.
Technical characterstic of the present invention: the present invention produces high tower nitrate-based compound fertilizer to be combined by fertiliser production with inland saline-alkali soil, the returning charge that utilizes high tower nitrate-based compound fertilizer production process to produce is directly used in a part for fertilizer material of the present invention, then coordinates calcium superphosphate, the pulverizing of xanthohumic acid acid material process, granulation and get final product.Method for preparing fertilizer of the present invention is easy, saves production cost, and has reduced the further phenomenon of deterioration of crop growth environment that inland saline-alkali soil causes because of applying fertilizer, and fertilizer nutrient utilization ratio is high, and effect of increasing production is obvious.Through overtesting, obtain good effect.
Excellent results of the present invention:
1. effectively improve inland saline-alkali soil barrier factors
Inland saline-alkali soil is unfavorable for that the major obstacle factor of plant growth is that pH is high and salt ion is many, and wherein leading ion is HCO
3 -.The nitrogenous fertilizer of using in China's agriculture production more than 60% is urea, and urea can resolve into bicarbonate of ammonia (NH within soil a middle or short term
4hCO
3), soil pH value is raise, be on the one hand unfavorable for plant growth, moreover make fertilizer nitrogen volatilization loss, reduce utilising efficiency, and along with the absorbing of nitrogen, HCO
3 -remain in soil, increase soil salt total amount, soil property is worsened more.The present invention selects ammonium nitrate as nitrogenous source, can effectively improve inland saline-alkali soil and cause original obstruction factor further to aggravate because using urea nitrogenous fertilizer, is conducive to the good growth of crop.
2. make full use of the returning charge of high tower nitrate-based compound fertilizer
High tower nitrate-based compound fertilizer in process of production nearly 10% product particle particle diameter does not meet product standard, needs returning charge granulation again.Waste of manpower, material resources, increase fertiliser production cost.But the composition of this part returning charge is not containing urea, meet the compositing characteristic of fertilizer of the present invention, so it is directly used in to the production of inland saline-alkali soil fertilizer, not only save high tower nitrate-based compound fertilizer production cost, the raw material storage in fertilizer of the present invention early stage, unpack, the process such as material loading reduces, and reduced production cost.
3. fertilizer efficiency is fast
High tower nitrate-based compound fertilizer is take ammonium nitrate as major nitrogen source, and ammonium nitrogen wherein, nitric nitrogen are the nitrogen ions that crop directly absorbs, and absorbed by crops fast after being manured into soil, fertilizer efficiency is rapid.Especially in early spring season, soil microbial activities is poor, and the conversion rate of urea nitrogenous fertilizer is slow, and nitric nitrogen, for the speed of growth that improves crops seedling stage, strengthens the saline and alkaline ability of opposing and has vital role.
4. be conducive to Crop nutrient, effect of increasing production is good
Fertilizer of the present invention has not only improved crop growth environment from reduction soil pH value, minimizing salt ion content aspect, and fertilizer material calcium superphosphate, xanthohumic acid are acidic substance, the fertiliser granulates local acidic conditions of middle maintenance that is manured into soil, is conducive to the absorption of crop to nutrient, and effect of increasing production is good.
Embodiment
Below in conjunction with embodiment, the present invention will be further described, but be not limited to this.Raw material consumption umber in embodiment is mass parts, and all per-cents are mass percent.Wherein, ammonium nitrate, diammonium phosphate, monoammonium phosphate, potassium primary phosphate, calcium superphosphate, potassium sulfate, saltpetre, zinc sulfate, boric acid, ammonium molybdate, xanthohumic acid, wilkinite, zeolite powder are commercially available prod.Wherein, xanthohumic acid, the sky, Liaocheng goods and materials company limited produces.Calcium superphosphate is containing Vanadium Pentoxide in FLAKES 16wt%.
Embodiment 1: the coproduction of high tower nitrate-based compound fertilizer is applicable to the alkali resistant type fertilizer of inland saline-alkali soil, and raw material is composed as follows:
50 kilograms of high tower nitrate-based compound fertilizer returning charges, 20 kilograms of calcium superphosphate, 30 kilograms of xanthohumic acids.
Preparation method:
(1) get 500 kilograms, ammonium nitrate, 80 kilograms of calcium superphosphate, 250 kilograms of potassium sulfate, 100 kilograms, saltpetre, 8 kilograms, zinc sulfate, 62 kilograms of wilkinites, by prior art heating and melting, high tower prilling.
(2) by the material screening after step (1) granulation, particle diameter conformance with standard 1～4.75mm as high tower nitrate-based compound fertilizer product; The fine powder that particle diameter is greater than the macrobead of 4.75mm and is less than 1mm is as the returning charge of high tower nitrate-based compound fertilizer.
(3) get 50 kilograms of step (2) high tower nitrate-based compound fertilizer returning charges, 20 kilograms of calcium superphosphate, add in shredder hopper and pulverize, then are mixed together granulation with 30 kilograms of xanthohumic acids, must be applicable to the alkali resistant type fertilizer of inland saline-alkali soil.
Embodiment 2: the coproduction of high tower nitrate-based compound fertilizer is applicable to the alkali resistant type fertilizer of inland saline-alkali soil, and raw material is composed as follows:
70 kilograms of high tower nitrate-based compound fertilizer returning charges, 10 kilograms of calcium superphosphate, 20 kilograms of xanthohumic acids.
Preparation method:
(1) get 550 kilograms, ammonium nitrate, diammonium phosphate 120 kg, 280 kilograms of potassium sulfate, 6 kilograms, zinc sulfate, 3 kilograms of boric acid, 41 kilograms of zeolite powders, by prior art heating and melting, high tower prilling.
(2) by the material screening after step (1) granulation, particle diameter conformance with standard 1～4.75mm as high tower nitrate-based compound fertilizer product; The fine powder that particle diameter is greater than the macrobead of 4.75mm and is less than 1mm is as the returning charge of high tower nitrate-based compound fertilizer.
(3) get 70 kilograms of step (2) high tower nitrate-based compound fertilizer returning charges, 10 kilograms of calcium superphosphate, add in shredder hopper and pulverize, then granulation together with 20 kilograms of xanthohumic acids, must be applicable to the alkali resistant type fertilizer of inland saline-alkali soil.
Embodiment 3: the coproduction of high tower nitrate-based compound fertilizer is applicable to the alkali resistant type fertilizer of inland saline-alkali soil, and raw material is composed as follows:
60 kilograms of high tower nitrate-based compound fertilizer returning charges, 15 kilograms of calcium superphosphate, 25 kilograms of xanthohumic acids.
Preparation method:
(1) get 600 kilograms, ammonium nitrate, 100 kilograms of monoammonium phosphates, 200 kilograms of potassium sulfate, 40 kilograms, saltpetre, 10 kilograms, zinc sulfate, 2 kilograms of ammonium molybdates, 48 kilograms of wilkinites, by prior art heating and melting, high tower prilling.
(2) by the material screening after step (1) granulation, particle diameter conformance with standard 1～4.75mm as high tower nitrate-based compound fertilizer product; The fine powder that particle diameter is greater than the macrobead of 4.75mm and is less than 1mm is as the returning charge of high tower nitrate-based compound fertilizer.
(3) get 60 kilograms of step (2) high tower nitrate-based compound fertilizer returning charges, 15 kilograms of calcium superphosphate, add in shredder hopper and pulverize, then granulation together with 25 kilograms of xanthohumic acids, to obtain final product.
Embodiment 4: the coproduction of high tower nitrate-based compound fertilizer is applicable to the alkali resistant type fertilizer of inland saline-alkali soil, and raw material is composed as follows:
46 kilograms of high tower nitrate-based compound fertilizer returning charges, 22 kilograms of calcium superphosphate, 32 kilograms of xanthohumic acids.
Preparation method:
(1) get 530 kilograms, ammonium nitrate, 100 kilograms of calcium superphosphate, 300 kilograms of potassium sulfate, 12 kilograms, zinc sulfate, 30 kilograms of wilkinites, 28 kilograms of zeolite powders, by prior art heating and melting, high tower prilling.
(2) by the material screening after step (1) granulation, particle diameter conformance with standard 1～4.75mm as high tower nitrate-based compound fertilizer product; The fine powder that particle diameter is greater than the macrobead of 4.75mm and is less than 1mm is as the returning charge of high tower nitrate-based compound fertilizer.
(3) get 46 kilograms of step (2) high tower nitrate-based compound fertilizer returning charges, 22 kilograms of calcium superphosphate, add in shredder hopper and pulverize, then granulation together with 32 kilograms of xanthohumic acids, to obtain final product.
Comparative example:
Common nitrogen-phosphorus-potassium compound fertilizer, the mass content of nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide is respectively 15wt%, 15wt%, 15wt%, and raw material nitrogenous fertilizer is urea, and market is buied.
The effect of above embodiment 1～4 and comparative example is as follows:
Test site: Heze city of Shandong province, large ecological engineering company limited of Heze Nintaus test farm.
Test period: year October in April, 2012 to 2012.
For studying thing: cotton, kind, Shandong cotton is ground No. 21.
Adopt potted plantly, soil is taken from the inland saline-alkali soil of Xinjiang autonomous region Aksu City.If embodiment 1～4 and comparative example be totally 5 processing, each processing 10 basins.Embodiment 1～4 is identical with comparative example fertilizer amount, and amounting to into purity nitrogen, Vanadium Pentoxide in FLAKES, potassium oxide three total amount is 5 grams, per kilogram soil.Fertilizing method is before sowing cotton seed, fertilizer is even with whole mixing with soil.After Term Fertilization, after 48 hours and cotton harvesting, measure at twice soil pH and HCO
3 -ion, gets the mean value of twice.After cotton harvesting, calculate yield-increasing efficiency; Other control measures are identical.Effect is in table 1.
The application test result of table 1 embodiment 1～4 compared with comparative example
| Fertilizer of the present invention | Increase output % | Soil pH reduces | Soil HCO 3 -Reduce % |
| Embodiment 1 | 8.2 | 0.4 | 4.3 |
| Embodiment 2 | 5.9 | 0.3 | 3.9 |
| Embodiment 3 | 6.2 | 0.2 | 3.7 |
| Embodiment 4 | 7.3 | 0.5 | 3.4 |
Claims (6)
1. the coproduction of high tower nitrate-based compound fertilizer is applicable to an alkali resistant type fertilizer for inland saline-alkali soil, it is characterized in that raw materials quality part being: 40～70 parts of high tower nitrate-based compound fertilizer returning charges, 10～25 parts of calcium superphosphate, 20～35 parts of xanthohumic acids;
Described high tower nitrate-based compound fertilizer returning charge is that the fertiliser granulates of high tower prilling during high tower nitrate-based compound fertilizer is produced is less than through the particle diameter that separates the particle that the powder of 1 millimeter and/or particle diameter are greater than 4.75 millimeters; Wherein,
Described high tower nitrate-based compound fertilizer is made through high tower prilling by composite fertilizer material nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, trace element fertilizer and stopping composition, nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, trace element fertilizer, stopping composition are in 450～600: 70～120: 200～300: 6～12: 40～65 ratios are mixed, wherein, nitrogenous fertilizer is selected ammonium nitrate; Phosphate fertilizer is selected potassium primary phosphate, diammonium phosphate, monoammonium phosphate, calcium superphosphate one or a combination set of; Potash fertilizer is the combination of potassium sulfate or potassium sulfate and saltpetre; Trace element fertilizer is selected from zinc sulfate, boric acid, ammonium molybdate, copper sulfate, manganous sulfate one or a combination set of; Stopping composition is selected zeolite powder, wilkinite one or a combination set of.
2. the alkali resistant type fertilizer that is applicable to inland saline-alkali soil according to claim 1, is characterized in that, in high tower nitrate-based compound fertilizer raw material, phosphate fertilizer is selected from the calcium superphosphate containing Vanadium Pentoxide in FLAKES 14～18wt%.
3. the alkali resistant type fertilizer that is applicable to inland saline-alkali soil according to claim 1, is characterized in that, this fertilizer material mass parts is: 45～55 parts of high tower nitrate-based compound fertilizer returning charges, 18～22 parts of calcium superphosphate, 28～32 parts of xanthohumic acids.
4. the alkali resistant type fertilizer that is applicable to inland saline-alkali soil according to claim 1, is characterized in that, this fertilizer material mass parts is: 50 parts of high tower nitrate-based compound fertilizer returning charges, 20 parts of calcium superphosphate, 30 parts of xanthohumic acids.
5. the high tower nitrate-based compound fertilizer coproduction described in claim 1 ~ 4 any one is applicable to the preparation method of the alkali resistant type fertilizer of inland saline-alkali soil, and step is as follows:
(1) produce high tower nitrate-based compound fertilizer, comprise composite fertilizer material nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, trace element fertilizer and stopping composition are mixed in proportion to heating and melting, melting charge slurry enters in prilling tower from the high column overhead churning of granulation, air intake at the bottom of tower, slip from tower top decline process with rise gas-flow resistance effect under drop to tower slowly at the bottom of, complete granulation;
(2) by the material screening after granulation, particle diameter conformance with standard 1～4.75mm as high tower compound fertilizer product; Particle diameter is greater than the macrobead of 4.75mm and is less than the fine powder of 1mm, i.e. high tower nitrate-based compound fertilizer returning charge;
(3) get in proportion the high tower nitrate-based compound fertilizer returning charge of step (2), calcium superphosphate, is added in shredder hopper and pulverizes, then adds xanthohumic acid, and granulation, to obtain final product.
6. the high tower nitrate-based compound fertilizer coproduction described in claim 1 ~ 4 any one is applicable to the application of the alkali resistant type fertilizer of inland saline-alkali soil, and method is as follows:
Make base manure, evenly spread fertilizer over the fields behind ground and turn over and bury in crop sowing or before transplanting; Fertilizer amount: amount to into 25～35 kilograms every mu of purity nitrogens, Vanadium Pentoxide in FLAKES, potassium oxide total amount; Or,
Topdress, ditch spread or spread manuer in holes, 3～5 centimetres of the degree of depth, every mu of consumption is amounted to into 15～25 kilograms of purity nitrogens, Vanadium Pentoxide in FLAKES, potassium oxide total amount.
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| CN107089877A (en) * | 2017-06-12 | 2017-08-25 | 贵州诺威施生物工程有限公司 | Nitre sulfenyl biological compound fertilizer particle and preparation method |
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| ES8606972A3 (en) * | 1984-07-31 | 1986-05-16 | Philopatent Sa | Liq. fertiliser prodn. |
| CN101817703A (en) * | 2010-03-13 | 2010-09-01 | 李金伟 | Compound fertilizer |
| CN101948353A (en) * | 2010-09-20 | 2011-01-19 | 张彦超 | Organic/inorganic salt and alkali resistant long-acting corn fertilizer |
| AU2010200443A1 (en) * | 2010-02-08 | 2011-08-25 | Nu-Edge Solutions Australia Pty Ltd | Fertiliser formulation |
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2013
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES8606972A3 (en) * | 1984-07-31 | 1986-05-16 | Philopatent Sa | Liq. fertiliser prodn. |
| AU2010200443A1 (en) * | 2010-02-08 | 2011-08-25 | Nu-Edge Solutions Australia Pty Ltd | Fertiliser formulation |
| CN101817703A (en) * | 2010-03-13 | 2010-09-01 | 李金伟 | Compound fertilizer |
| CN101948353A (en) * | 2010-09-20 | 2011-01-19 | 张彦超 | Organic/inorganic salt and alkali resistant long-acting corn fertilizer |
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