CN101468930B - Special inorganic composite base fertilizer for sweet sorghum in alkaline land and preparation thereof - Google Patents
Special inorganic composite base fertilizer for sweet sorghum in alkaline land and preparation thereof Download PDFInfo
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- CN101468930B CN101468930B CN200810118839A CN200810118839A CN101468930B CN 101468930 B CN101468930 B CN 101468930B CN 200810118839 A CN200810118839 A CN 200810118839A CN 200810118839 A CN200810118839 A CN 200810118839A CN 101468930 B CN101468930 B CN 101468930B
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- saltings
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 76
- 244000138286 Sorghum saccharatum Species 0.000 title claims abstract description 47
- 235000011684 Sorghum saccharatum Nutrition 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 239000002131 composite material Substances 0.000 title description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 28
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 22
- 239000004202 carbamide Substances 0.000 claims abstract description 20
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims abstract description 19
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 6
- 238000009938 salting Methods 0.000 claims description 33
- 150000001875 compounds Chemical class 0.000 claims description 27
- 235000013339 cereals Nutrition 0.000 claims description 18
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 17
- 239000006012 monoammonium phosphate Substances 0.000 claims description 17
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000005469 granulation Methods 0.000 claims description 14
- 230000003179 granulation Effects 0.000 claims description 14
- 239000008187 granular material Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 229910052700 potassium Inorganic materials 0.000 claims description 5
- 238000004513 sizing Methods 0.000 claims description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 150000002484 inorganic compounds Chemical class 0.000 abstract 2
- 229910010272 inorganic material Inorganic materials 0.000 abstract 2
- 230000037208 balanced nutrition Effects 0.000 abstract 1
- 235000019046 balanced nutrition Nutrition 0.000 abstract 1
- 229910000278 bentonite Inorganic materials 0.000 abstract 1
- 239000000440 bentonite Substances 0.000 abstract 1
- 239000000470 constituent Substances 0.000 abstract 1
- 238000000227 grinding Methods 0.000 abstract 1
- 239000002585 base Substances 0.000 description 41
- 238000012360 testing method Methods 0.000 description 39
- 241000196324 Embryophyta Species 0.000 description 13
- 238000013329 compounding Methods 0.000 description 12
- 239000000203 mixture Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- 238000007726 management method Methods 0.000 description 3
- 235000021049 nutrient content Nutrition 0.000 description 3
- 235000015097 nutrients Nutrition 0.000 description 3
- 235000016709 nutrition Nutrition 0.000 description 3
- 230000035764 nutrition Effects 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 239000010871 livestock manure Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000050 nutritive effect Effects 0.000 description 2
- 229940072033 potash Drugs 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 235000015320 potassium carbonate Nutrition 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- WZLMXYBCAZZIRQ-UHFFFAOYSA-N [N].[P].[K] Chemical compound [N].[P].[K] WZLMXYBCAZZIRQ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 235000012041 food component Nutrition 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000000618 nitrogen fertilizer Substances 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- -1 salt ion Chemical class 0.000 description 1
- 235000019600 saltiness Nutrition 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
Abstract
The invention relates to a sweet-sorghum special inorganic compound base fertilizer applicable to saline-alkaline land, and a preparation method thereof. The weight ratio of nitrogen as an active constituent to P2O5 contained in the inorganic compound base fertilizer is 15-20:25-30, and the quantity of effective fertilizer (N+P2O5) is more than or equal to 45 percent to the total weight. The base fertilizer can be prepared from 16.30 to 29.89 percent (by weight) of urea, 56.82 to 68.18 percent (by weight) of phosphoric acid-ammonium and 13.29 to 15.52 percent (by weight) of bentonite through the steps of grinding, mixing, granulating, drying, cooling and the like, has the characteristics of special application, balanced nutrition, high efficiency and excellent environmental protection, and can remarkably promote the growth of sweet sorghum in the environment of saline-alkaline land.
Description
Technical field
The present invention relates to a kind of fertilizer and preparation method thereof, particularly a kind of compound base fertilizer of sweet sorghum special inorganic that is suitable for the saltings use and preparation method thereof.
Background technology
The development of agricultural modernization is had higher requirement to the chemical fertilizer product.Composite fertilizer can provide multiple nutritional components such as the N, P, K of rational proportion, and can produce certain synergy; And special-purpose fertilizer can be according to the special property of soil and plant, and property provides nutrition more targetedly, and good effect is also arranged.In recent years, China composite fertilizer is all fast-developing with special-purpose fertile research and application, some composite special fertilizer material occurred, but kind is still waiting further to enrich.
The saline and alkaline land area of China is bigger, because saltiness is higher, it is unfavorable for the growth of crop.And sweet sorghum sowing generally is at the beginning of by the end of April to 5 months, and rainfall generally is rare, and soil evaporativeness is big, the saline and alkaline of upper soll layer in 1 year also be the highest in, so base fertilizer should reduce the input of salt ion as far as possible.And alkaline land soil potash fertilizer is sufficient, does not need application of potash fertilizer again in the base fertilizer.
Do not see at present the special-purpose base fertilizer of the sweet sorghum that is applicable to the saltings.
Summary of the invention
The object of the invention provides a kind of sweet sorghum specific complex base fertilizer that is applicable to saline and alkaline soil and preparation method thereof.This base fertilizer can provide the various nutritive substances of the certainweight ratio of suitable its growth at barren saline-alkali soil on the ground for sweet sorghum.
The compound base fertilizer of sweet sorghum special inorganic that is suitable for the saltings use among the present invention wherein contains activeconstituents nitrogen element and P
2O
5The weight ratio scope be 15～20: 25～30, and effectively fertile (N+P
2O
5) measure more than or equal to 45 weight %; Wherein nitrogen and P
2O
5Part by weight preferably 15.6: 29.4.
The compound base fertilizer of sweet sorghum special inorganic that is suitable for the saltings use among the present invention; It is processed by urea, monoammonium phosphate and wilkinite; Wherein urea, monoammonium phosphate and bentonitic weight percent are respectively: urea 16.30-29.89%; Monoammonium phosphate 56.82-68.18%, wilkinite 13.29%-15.52%.
Be suitable for the compound base fertilizer of sweet sorghum special inorganic that use in the saltings among the present invention, wherein in the urea part by weight of nitrogen more than or equal to 46%; The part by weight of nitrogen is more than or equal to 11% in the monoammonium phosphate; P
2O
5Part by weight more than or equal to 44%; Do not contain potassium in the wilkinite.
The preparing method's of the compound base fertilizer of sweet sorghum special inorganic that being suitable for described in the present invention used in the saltings step is following:
1) raw material pulverizing: urea and monoammonium phosphate pulverize separately to median size are reached about 2mm;
2) blending: will pulverize urea and monoammonium phosphate and wilkinite proportional mixing, and add an amount of water again, and mix through stirrer;
3) granulation: the material that mixes is carried out granulation with rotary drum granulator under 55-65 ℃ temperature, particle diameter is 1.5-3.5mm;
4) oven dry: the grain that will make is dried with dryer, and the dryer air inlet temperature is 150-200 ℃, and the air outlet is 50-60 ℃, dries to the particulate water cut to be less than or equal to 2 weight %;
5) cooling: the fertiliser granulates after will drying advances cooling tank and is cooled to normal temperature;
6) warehouse-in: warehouse-in is preserved sieve out the granule packaging that meets the product cut size requirement with sizing screen after.
In the aforesaid method, the screening step is arranged between step 4) and the step 5), it is specially: particle diameter carries out granulation again after requiring size particles to pulverize; Particle diameter is less than requiring directly granulation again of size particles.
Urea is this area nitrogenous fertilizer commonly used, and the weight percentage of preferably selecting nitrogen in the present invention for use is more than or equal to 46% urea; Both contain nitrogen in the monoammonium phosphate and also contained P
2O
5, the weight percentage of preferably selecting nitrogen wherein among the present invention for use is more than or equal to 11%, simultaneously P
2O
5Weight percentage more than or equal to 44% monoammonium phosphate; And also contain nitrogen and P in the wilkinite
2O
5, preferably select for use and wherein do not contain potassium, like K
2The wilkinite of O.
The compound base fertilizer of sweet sorghum special inorganic that is suitable for using in the saltings among the present invention is shaped as spheroidal or elliposoidal, and particle diameter is 1.5-3.5mm, and water cut is less than or equal to 2.0 weight %, wherein effectively fertile (N+P
2O
5) measure more than or equal to 45 weight %.
During the compound base fertilizer of the sweet sorghum special inorganic that uses being suitable among the present invention to use in the saltings, can confirm the usage quantity of this compound base fertilizer according to expected yield with reference to following table:
The compound base fertilizer of the special-purpose high density of sweet sorghum that being suitable among the present invention used in the saltings every mu of consumption under 2-3.5 ton/mu expection fresh weight level is about 13kg; Because fertilizer application amount is less can be used as seed manure at seeding time; But fertilizer can not contact with seed, plants in order to avoid cause to burn.Every mu of consumption is about 24-37kg under 3.5-6.5 ton/mu expection fresh weight level.Since fertilizer application amount more greatly can be before the arable land broadcast application, and plough under underground with the arable land.
The compound base fertilizer of sweet sorghum special inorganic that is suitable for using in the saltings among the present invention has following beneficial effect:
1) specificity: the inorganic compounding base fertilizer among the present invention is that the characteristics according to the soil nutrient characteristics of beach saline land and sweet sorghum nutrition absorption develop, and is applicable to the sweet sorghum kind of ripe a plurality of types of morning, noon and afternoon;
2) balanced nutrients property: when using the inorganic compounding base fertilizer among the present invention, can satisfy one of crop growth season needed whole phosphorus plain, potassium is plain and the nitrogen nutrition demand;
3) high efficiency: the inorganic compounding base fertilizer among the present invention is with strong points, and utilization rate of fertilizer is far above conventional fertilizers;
4) the high-quality feature of environmental protection: the inorganic compounding base fertilizer among the present invention can promote sweet sorghum growth and sugar part accumulation, improves the sweet sorghum quality, simultaneously because nutritive equilibrium, microorganism active and higher utilization rate of fertilizer can not cause the water body eutrophication.
Embodiment
For further specifying the present invention, specifically set forth in conjunction with following examples:
Embodiment 1
1, production inorganic compounding base fertilizer:
Be suitable for the compound base fertilizer of sweet sorghum special inorganic that use in the saltings among production the present invention as follows:
1) material is pulverized: with the urea (weight percent of N>=46%) of 17.83 weight % and the monoammonium phosphate (P of 66.82 weight %
2O
5>=44%, N>=11%) pulverize separately to median size reaches 2mm;
2) blending: will pulverize urea and monoammonium phosphate and mix, and add an amount of water again, and mix through stirrer with the wilkinite of 15.35 weight %;
3) granulation: the material that mixes is carried out granulation with rotary drum granulator under 55 ℃ temperature, particle diameter is 1.5mm;
4) oven dry: will make the grain dry with dryer, the dryer air inlet temperature is 150 ℃, the air outlet is 50 ℃, dry to the particulate water cut be 2 weight %;
5) cooling: the fertiliser granulates after will drying advances cooling tank and is cooled to normal temperature;
6) warehouse-in: warehouse-in is preserved sieve out the granule packaging that meets the product cut size requirement with sizing screen after.
Promptly obtain being suitable for the compound base fertilizer of sweet sorghum special inorganic that use in the saltings.
Nutrient content in the inorganic compounding base fertilizer is: N>=15.6%; P
2O
5>=29.4%; N+P
2O
5>=45.0%.
2, be suitable for the effect test of the compound base fertilizer of sweet sorghum special inorganic of saltings use:
Carried out being suitable for the sweet sorghum fertilizer test of the compound base fertilizer of sweet sorghum special inorganic on the saltings that use in the saltings in the Haixing County, Hebei province.Experimental field belong to the moderate saltings, 10 mu of test area, it is " meaning Dary " that the sweet sorghum kind is used in test.Test group base fertilizer is used the inorganic compounding base fertilizer that obtains in 25 kilograms of present embodiments, and control group is used 40 kilograms of urea, and other rich water quality managements are identical.Late growth stage is to sweet sorghum plant height, stem stalk sugar degree (hammer degree), grain yield and the determination of yield of stem stalk.
Test-results shows, test group plant height 217cm, and control group plant height 162cm, test group improves 33.9% than control group plant height; Test group grain yield 1783kg/hm
2, control group grain yield 1584kg/hm
2, test group improves 12.6% than control group grain yield; Test group stem stalk sugar degree (hammer degree brix) 18.07, control group stem stalk sugar degree (hammer degree brix) 16.4, test group improves 10.2% than control group stem stalk sugar degree (hammer degree brix); Test group stem stalk output 70774kg/hm
2, control group stem stalk output 58489kg/hm
2, test group improves 21% than control group stem stalk output.
Embodiment 2
1, production inorganic compounding base fertilizer:
Be suitable for the compound base fertilizer of sweet sorghum special inorganic that use in the saltings among production the present invention as follows:
1) material is pulverized: with the urea (weight percent of N>=46%) of 29.89 weight % and the monoammonium phosphate (P of 56.82 weight %
2O
5>=44%, N>=11%) pulverize separately to median size reaches 2mm;
2) blending: will pulverize urea and monoammonium phosphate and mix, and add an amount of water again, and mix through stirrer with the wilkinite of 13.29 weight %;
3) granulation: the material that mixes is carried out granulation with rotary drum granulator under 65 ℃ temperature, particle diameter is 3.5mm;
4) oven dry: will make the grain dry with dryer, the dryer air inlet temperature is 200 ℃, the air outlet is 60 ℃, dry to the particulate water cut be 1.5 weight %;
5) cooling: the fertiliser granulates after will drying advances cooling tank and is cooled to normal temperature;
6) warehouse-in: warehouse-in is preserved sieve out the granule packaging that meets the product cut size requirement with sizing screen after.
Promptly obtain being suitable for the compound base fertilizer of sweet sorghum special inorganic that use in the saltings.
Nutrient content in the inorganic compounding base fertilizer is: N>=20.0%; P
2O
5>=25.0%; N+P
2O
5>=45.0%.
2, be suitable for the effect test of the compound base fertilizer of sweet sorghum special inorganic of saltings use:
Implemented the fertilizer test of sweet sorghum on the saltings in the Haixing County, Hebei province.Experimental field belong to the moderate saltings, 10 mu of test area, it is " meaning Dary " that the sweet sorghum kind is used in test.Test group base fertilizer is used the inorganic compounding base fertilizer that obtains in 25 kilograms of present embodiments, and control group is used 40 kilograms of urea, and other rich water quality managements are identical.Late growth stage is to sweet sorghum plant height, stem stalk sugar degree (hammer degree), grain yield and the determination of yield of stem stalk.
Test-results shows, test group plant height 203cm, and control group plant height 162cm, test group improves 25.3% than control group plant height; Test group grain yield 1652kg/hm
2, control group grain yield 1584kg/hm
2, test group improves 4.3% than control group grain yield; Test group stem stalk sugar degree (hammer degree brix) 16.79, control group stem stalk sugar degree (hammer degree brix) 16.4, test group improves 2.4% than control group stem stalk sugar degree (hammer degree brix); Test group stem stalk output 65105kg/hm
2, control group stem stalk output 58489kg/hm
2, test group improves 11.3% than control group stem stalk output.
Embodiment 3
1, production inorganic compounding base fertilizer:
Be suitable for the compound base fertilizer of sweet sorghum special inorganic that use in the saltings among production the present invention as follows:
1) material is pulverized: with the urea (weight percent of N>=46%) of 16.30 weight % and the monoammonium phosphate (P of 68.18 weight %
2O
5>=44%, N>=11%) pulverize separately to median size reaches 2mm;
2) blending: will pulverize urea and monoammonium phosphate and mix, and add an amount of water again, and mix through stirrer with the wilkinite of 15.52 weight %;
3) granulation: the material that mixes is carried out granulation with rotary drum granulator under 60 ℃ temperature, particle diameter is 2.5mm;
4) oven dry: will make the grain dry with dryer, the dryer air inlet temperature is 180 ℃, the air outlet is 55 ℃, dry to the particulate water cut be 1 weight %;
5) cooling: the fertiliser granulates after will drying advances cooling tank and is cooled to normal temperature;
6) screening: the particle to after the oven dry sieves, and particle diameter carries out granulation again after requiring size particles to pulverize; Particle diameter is less than requiring directly granulation again of size particles;
7) warehouse-in: warehouse-in is preserved sieve out the granule packaging that meets the product cut size requirement with sizing screen after.
Promptly obtain being suitable for the compound base fertilizer of sweet sorghum special inorganic that use in the saltings.
Nutrient content in the inorganic compounding base fertilizer is: N>=15.0%; P
2O
5>=30.0%; N+P
2O
5>=45.0%.
2, be suitable for the effect test of the compound base fertilizer of sweet sorghum special inorganic of saltings use:
Implemented the fertilizer test of sweet sorghum on the saltings in the Haixing County, Hebei province.Experimental field belong to the moderate saltings, 10 mu of test area, it is " meaning Dary " that the sweet sorghum kind is used in test.Test group base fertilizer is used the special-purpose fertilizer of 25 kilograms of sweet sorghumes, and control group is used 40 kilograms of urea, and other rich water quality managements are identical.Late growth stage is to sweet sorghum plant height, stem stalk sugar degree (hammer degree), grain yield and the determination of yield of stem stalk.
Test-results shows, test group plant height 213cm, and control group plant height 162cm, test group improves 31.5% than control group plant height; Test group grain yield 1670kg/hm
2, control group grain yield 1584kg/hm
2, test group improves 5.4% than control group grain yield; Test group stem stalk sugar degree (hammer degree brix) 17.23, control group stem stalk sugar degree (hammer degree brix) 16.4, test group improves 5.1% than control group stem stalk sugar degree (hammer degree brix); Test group stem stalk output 66777kg/hm
2, control group stem stalk output 58489kg/hm
2, test group improves 14.2% than control group stem stalk output.
In sum; Under the condition of saltings, use mineral manure in a large number and can not make crop yield sometimes; The best proportioning of nitrogen phosphorus potassium inorganic nutrients has promoter action preferably to growing of sweet sorghum; Can increase plant height, increase grain yield and the stem stalk output of plant, can also effectively improve sorgo juice liquid hammer degree.
The % that relates among the present invention all refers to weight percent as outside the no specified otherwise.
Above-described embodiment describes preferred implementation of the present invention; Be not that scope of the present invention is limited; Design under the prerequisite of spirit not breaking away from the present invention; Various distortion and improvement that the common engineering technical personnel in this area make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (5)
1. one kind is suitable for the compound base fertilizer of sweet sorghum special inorganic that use in the saltings; It is characterized in that: this compound base fertilizer is processed by urea 16.30-29.89%, monoammonium phosphate 56.82-68.18% and the wilkinite 13.29%-15.52% of weight percent, and preparation process is following:
1) raw material pulverizing: urea and monoammonium phosphate pulverize separately to median size are reached 2mm;
2) blending: will pulverize urea and monoammonium phosphate and wilkinite proportional mixing, and add an amount of water again, and mix through stirrer;
3) granulation: the material that mixes is carried out granulation with rotary drum granulator under 55-65 ℃ temperature, particle diameter is 1.5-3.5mm;
4) oven dry: the grain that will make is dried with dryer, and the dryer air inlet temperature is 150-200 ℃, and the air outlet is 50-60 ℃, dries to the particulate water cut to be less than or equal to 2 weight %;
5) cooling: the fertiliser granulates after will drying advances cooling tank and is cooled to normal temperature;
6) warehouse-in: warehouse-in is preserved sieve out the granule packaging that meets the product cut size requirement with sizing screen after;
The weight ratio scope that contains activeconstituents nitrogen element and P2O5 in the base fertilizer product that obtains at last is 15～20: 25～30, and effective fertile N and P
2O
5Total amount is more than or equal to 45 weight %.
2. the compound base fertilizer of sweet sorghum special inorganic that is suitable for the saltings use as claimed in claim 1 is characterized in that: wherein contain activeconstituents nitrogen element and P
2O
5Weight ratio be 15.6: 29.4.
According to claim 1 or claim 2 be suitable for the compound base fertilizer of sweet sorghum special inorganic that use in the saltings, wherein in the urea part by weight of nitrogen more than or equal to 46%.
According to claim 1 or claim 2 be suitable for the compound base fertilizer of sweet sorghum special inorganic that use in the saltings, wherein in the monoammonium phosphate part by weight of nitrogen more than or equal to 11%; P
2O
5Part by weight more than or equal to 44%.
According to claim 1 or claim 2 be suitable for the compound base fertilizer of sweet sorghum special inorganic that use in the saltings, wherein do not contain potassium in the wilkinite.
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|---|---|---|---|
| CN200810118839A CN101468930B (en) | 2008-08-25 | 2008-08-25 | Special inorganic composite base fertilizer for sweet sorghum in alkaline land and preparation thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810118839A CN101468930B (en) | 2008-08-25 | 2008-08-25 | Special inorganic composite base fertilizer for sweet sorghum in alkaline land and preparation thereof |
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| CN101468930B true CN101468930B (en) | 2012-09-05 |
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| CN107500835A (en) * | 2017-09-29 | 2017-12-22 | 登封市老拴保肥料有限公司 | It is a kind of to prepare rich potassium calacareous soil corn formulation fertilizer with MAP blending urea |
| CN107619318A (en) * | 2017-09-29 | 2018-01-23 | 登封市老拴保肥料有限公司 | It is a kind of to prepare rich potassium meta-alkali calacareous soil soy formulations fertilizer with MAP blending urea |
| CN107556080A (en) * | 2017-09-29 | 2018-01-09 | 登封市老拴保肥料有限公司 | It is a kind of to prepare rich potassium meta-alkali calacareous soil sorghum formula fertilizer with MAP blending urea |
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| CN1250042A (en) * | 1999-10-23 | 2000-04-12 | 石少锋 | Mixed fertilizer compounding method |
| CN1303841A (en) * | 1999-11-26 | 2001-07-18 | 胡新寿 | Complex fertilizer with drought-resisting and water-resisting function |
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| CN1250042A (en) * | 1999-10-23 | 2000-04-12 | 石少锋 | Mixed fertilizer compounding method |
| CN1303841A (en) * | 1999-11-26 | 2001-07-18 | 胡新寿 | Complex fertilizer with drought-resisting and water-resisting function |
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| CN101468930A (en) | 2009-07-01 |
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