CN109574756A - Sorghum special-purpose control-release fertilizer - Google Patents
Sorghum special-purpose control-release fertilizer Download PDFInfo
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- CN109574756A CN109574756A CN201910051174.3A CN201910051174A CN109574756A CN 109574756 A CN109574756 A CN 109574756A CN 201910051174 A CN201910051174 A CN 201910051174A CN 109574756 A CN109574756 A CN 109574756A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The present invention relates to a kind of sorghum special-purpose control-release fertilizers, it includes nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, sulfur fertilizer, zinc fertilizer and iron fertilizer, in sorghum special-purpose control-release fertilizer, the content of various effective chemical elements is respectively as follows: nitrogen with the weight percent of pure nutrition calculation for 23%-25%, phosphorus pentoxide is 8%-10%, potassium oxide is 12%-14%, sulphur is 0.41%-0.82%, iron is 0.4%-0.7%, zinc is 0.4%-0.8%, and humic acid is 7%-9%, wherein, nitrogenous fertilizer includes Controlled Release Nitrogen Fertilizer, the content of nitrogen in Controlled Release Nitrogen Fertilizer for institute's Nitrogen element total amount in nitrogenous fertilizer 32%-39%.Fertilizer nutrient proportion as described above according to the present invention is reasonable, meet demand of the sorghum time of infertility to nutrient, utilization rate of fertilizer is high, saves the investment and cost of labor of top dressing, suitable iron fertilizer and zinc fertilizer is added simultaneously, can lay the foundation for sorghum quality and economic benefit promotion.
Description
Technical field
The present invention relates to a kind of release and release control fertilizers, more particularly, to a kind of dedicated release-controlled with the sorghum broadcast suitable for seed manure
Fertilizer.
Background technique
Background of related of the invention is illustrated below, but these explanations might not constitute it is of the invention existing
Technology.
Sorghum has the multiple resistance such as drought resisting, waterlogging, saline-alkali tolerant, impoverishment tolerant, and important position is occupied in world's cereal
It sets.It is both a kind of grain and forage crop and main liquor-making raw material.Sorghum is adaptable, and the speed of growth is fast, anti-to nutrient
Sensitivity is answered, absorption nutrient is fast, and stability is good, can carry out high-intensitive absorption, Neng Gou to soil nutrient in high dense planting
Reach the absorption of nutrient depletion in short time.There are heavy dressing nitrogen phosphorus fertilizer, light potassium applications for China sorghum fertilising at present；Heavy dressing
Fertilizer, gently apply or not organic fertilizer the problem of seriously constrain the raising of sorghum production integral level.
Since the yield of the crops such as grain, water fruits and vegetables is being continuously increased, and growth cycle is shortening, a large amount of fertilizer,
The use of pesticide causes decline, soil deterioration, atmosphere pollution of quality etc., brings very big harm to the life of the mankind.
People it is expected that production and supply is pollution-free, eutrophic high quality agricultural products strongly.Sorghum seed is the northern area of China main grain
One of food, and rich in nutrition content is the good concentrated feed of livestock and poultry, and be again industrially production starch, alcohol or
The primary raw material of wine brewing.Moreover, broomcorn straw and fringe can be used as the raw material of industry and daily necessity, therefore sorghum is with higher
Economic value and edible value, occupy an important position in China's agricultural production and people's lives.In recent years, add with deep
The purposes of the promotion of work technology, sorghum is more and more extensive, and the market demand of sorghum increases year by year, therefore, improves sorghum per unit area yield
Amount and quality become the main direction of studying of China sorghum at this stage, probe into suitable nitrogenous fertilizer, phosphate fertilizer, the Potassium Fertilizer of sorghum, right
Chemical fertilizer investment is reduced, realizes that sorghum high yield, stable yields, high-quality develop in harmony with environmental protection show particularly important.
With the development of fertilizer industry, Controlled Release Fertilizer increasingly caused by everybody concern, domestic release and release control fertilizer industry grinds
Study carefully in progress, China has been developed that a variety of release and release control fertilizers, and advantage of lower cost, generally the 1.2~1.3 of common fertilizer times.
Portioned product is mainly used for the crops such as rice, cotton, fruit tree at present, and achieves preferable effect.Some researches show that with length
Effect ammonium bicarbonate carries out overfertilization effect test on the crops such as rice, wheat, cotton, sugarcane, tealeaves, rubber and kelp, the results showed that,
The fertilizer efficiency of sandy soil, long-term efficiency bicarbonate ammonium is higher than normal ammonium bicarbonate, and can reduce fertilizer application frequency, and effect of increasing production is obvious.With controlled release
The reduction of fertilizer production cost and the increase of yield, extensive use of the release and release control fertilizer in all kinds of crop productions are chemical fertilizer hairs
The inevitable direction of exhibition also will increasingly be paid close attention to by everybody in sorghum application special-purpose control-release fertilizer.
Controlled Release Fertilizer can slow down or control the release of nutrient, and fertilizer efficiency period is long and stablizes, and be able to satisfy sorghum in entire breeding time pair
The demand of nutrient；Reduce the loss such as elution of fertilizer；Its salt index is low, not will cause salinity injury seed or rice shoot；It can reduce
Dose and number save labour, improve the utilization efficiency of fertilizer, improve the yield and quality, and save agriculture production cost.
Summary of the invention
For the above-mentioned problems in the prior art, the object of the present invention is to provide a kind of suitable for the special of sorghum growth
With Controlled Release Fertilizer, it fully takes into account the nutrient requirement characteristics in sorghum growth period, in proper proportions by N P and K and moderate-element
Cooperation, and suitable zinc fertilizer, iron fertilizer is added.It not only can satisfy the needs of sorghum the previous growth, improve filling speed, increase
Add grain plumpness, and to reducing chemical fertilizer investment, improving plant recovery of nutrient, realizes sorghum high yield, high-quality particularly important.
According to an embodiment of the invention, providing a kind of sorghum special-purpose control-release fertilizer, which includes nitrogenous fertilizer, phosphorus
Fertilizer, potash fertilizer, sulfur fertilizer, zinc fertilizer, iron fertilizer, in sorghum special-purpose control-release fertilizer, the content of various effective chemical elements is with pure nutrition calculation
Weight percent be respectively as follows: that nitrogen is 23%-25%, phosphorus pentoxide 8%-10%, potassium oxide 12%-14%, sulphur are
0.41%-0.82%, iron 0.4%-0.7%, zinc 0.4%-0.8% and humic acid are 7%-9%, wherein nitrogenous fertilizer packet
Include Controlled Release Nitrogen Fertilizer, the content of the nitrogen in Controlled Release Nitrogen Fertilizer for institute's Nitrogen element total amount in nitrogenous fertilizer 32%-39%.
The fertilizer nutrient proportion according to the present invention being formulated as described above rationally, meets the sorghum time of infertility to the need of nutrient
It asks, utilization rate of fertilizer is high, can significantly improve sorghum filling speed, increases grain plumpness.It is formulated as described above by application
Fertilizer can reduce the unreasonable application of chemical fertilizer, it is therefore prevented that the waste of fertilizer, while top dressing bring manpower, object can also be avoided
The investment of power and fund reduces production cost.
The preferred embodiment of sorghum special-purpose control-release fertilizer according to the present invention is various effective in sorghum special-purpose control-release fertilizer
The content of chemical element with the weight percent of pure nutrition calculation be respectively as follows: nitrogen be 23%, phosphorus pentoxide 9%, potassium oxide
For 13%, sulphur 0.6%, iron 0.5%, zinc are 0.6% and ammonium humate is 8%.
Nitrogen in the further preferred embodiment of sorghum special-purpose control-release fertilizer according to the present invention, in Controlled Release Nitrogen Fertilizer
Content be 35% of institute's Nitrogen element total amount in nitrogenous fertilizer.
Another preferred embodiment of sorghum special-purpose control-release fertilizer according to the present invention, Controlled Release Nitrogen Fertilizer are coated with resin urine
Element.
In an also preferred embodiment for sorghum special-purpose control-release fertilizer according to the present invention, the acquisition time of Controlled Release Nitrogen Fertilizer is
60 days.
Another preferred embodiment of sorghum special-purpose control-release fertilizer according to the present invention, in sorghum special-purpose control-release fertilizer, respectively
The parts by weight of kind effective chemical element be respectively as follows: 260 parts~280 parts common urea, 185 parts~215 parts Controlled Release Nitrogen Fertilizers,
200 parts~230 parts of potassium sulfate, 130 parts~150 parts of monoammonium phosphate, 20 parts~30 parts of ammonium sulfate, the seven of 25 parts~35 parts
Water zinc sulphate, 25 parts~35 parts of ferrous sulfate heptahydrate, 80 parts~100 parts of ammonium humate and 5 parts~10 parts of dicyandiamide.
In another preferred embodiment of sorghum special-purpose control-release fertilizer according to the present invention, in sorghum special-purpose control-release fertilizer
In, the parts by weight of various effective chemical elements are respectively as follows: 265 parts of weight common ureas, 200 parts by weight Controlled Release Nitrogen Fertilizers, 217 weights
Measure part potassium sulfate, 148 parts by weight of phosphoric acid monoammoniums, 25 parts sulfuric acid ammoniums, 30 parts by weight white vitriols, 30 parts by weight, seven water sulphur
Sour ferrous, 80 parts by weight ammonium humates and 5 parts by weight dicyandiamides.
Another preferred embodiment of sorghum special-purpose control-release fertilizer according to the present invention, phosphate fertilizer are selected from monoammonium phosphate, phosphoric acid
At least one of diammonium, calcium superphosphate, double superhosphate and calcium magnesium phosphate.
In another preferred embodiment of sorghum special-purpose control-release fertilizer according to the present invention, potash fertilizer is potassium sulfate.
Compared with prior art, the nutrient formula of sorghum special-purpose control-release fertilizer according to the present invention is reasonable, meets sorghum fertility
Phase grows the demand to nutrient.Utilization rate of fertilizer is high, can remarkably promote the growth of sorghum, joined suitable zinc fertilizer in fertilizer
And iron fertilizer, filling speed is improved, grain plumpness is increased, is laid a good foundation to improve Output of Sorghum and quality.Simultaneously
The investment that top dressing bring human and material resources and fund can be reduced, improves economic well-being of workers and staff.
Specific embodiment
Exemplary embodiments of the present invention are described in detail below.Description to illustrative embodiments is only
It for illustration purposes, is definitely not to the present invention and its application or the limitation of usage.
The present invention proposes that a kind of improved sorghum special-purpose control-release fertilizer, the sorghum special-purpose control-release fertilizer include nitrogenous fertilizer, phosphate fertilizer, potassium
Fertilizer, sulfur fertilizer, zinc fertilizer and iron fertilizer, the sorghum special-purpose control-release fertilizer can also include soil conditioner.It is special in sorghum according to the present invention
With in Controlled Release Fertilizer, the parts by weight of various effective chemical elements be respectively as follows: 260 parts~280 parts common urea, 185 parts~215
Part Controlled Release Nitrogen Fertilizer, 200 parts~230 parts of potassium sulfate, 130 parts~150 parts of monoammonium phosphate, 20 parts~30 parts of ammonium sulfate, 25
Part~35 parts of white vitriol, 25 parts~35 parts of ferrous sulfate heptahydrate, 80 parts~100 parts of ammonium humate and 5 parts~
10 parts of dicyandiamide.It should be noted that can use known in the art and common various nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, sulphur
Fertilizer, zinc fertilizer, iron fertilizer, as long as the parts by weight of various effective chemical elements defined above can be reached after the mixing of these fertilizer
Can advantageously, the parts by weight of each effective chemical element are respectively as follows: 265 parts of weight common ureas, 200 parts by weight Controlled-release nitrogens
Fertilizer, 217 parts sulfuric acid potassium, 148 parts by weight of phosphoric acid monoammoniums, 25 parts sulfuric acid ammoniums, 30 parts by weight white vitriols, 30 weight
Part ferrous sulfate heptahydrate, 80 parts by weight ammonium humates and 5 parts by weight dicyandiamides.
Formula fertilizer as described above according to the present invention can not only meet need of the sorghum in breeding time to various fertilizer
It asks, but also the required middle microelement of its growth can be obtained by this fertilizer.In addition, according to the present invention by applying
Sorghum special-purpose control-release fertilizer can also rationalize sorghum base fertilizer amount of application, reduce environmental pollution, it is therefore prevented that the waste of fertilizer, simultaneously
The investment of top dressing bring human and material resources and fund can also be reduced, to improve earning rate.Matched using according to the present invention
The sorghum special-purpose control-release fertilizer of side can also improve the yield and quality of sorghum.
The content of various effective chemical elements of sorghum special-purpose control-release fertilizer according to the present invention is with the weight of pure nutrition calculation
Percentage is respectively as follows: that nitrogen nitrogen is 23%-25%, phosphorus pentoxide 8%-10%, potassium oxide 12%-14%, sulphur are
0.41%-0.82%, iron 0.4%-0.7%, zinc 0.4%-0.8% and humic acid are 7%-9%.According to this hair
In bright sorghum special-purpose control-release fertilizer, nitrogenous fertilizer includes Controlled Release Nitrogen Fertilizer, and the content of the nitrogen in Controlled Release Nitrogen Fertilizer is institute in all nitrogenous fertilizer
The 32%-39% of Nitrogen element total amount.Further, the content of various effective chemical elements is with the weight percent of pure nutrition calculation
Than be respectively nitrogen be 23%, phosphorus pentoxide 9%, potassium oxide 13%, sulphur 0.6%, iron 0.5%, zinc be 0.6% with
And ammonium humate is 8%.Here, nitrogenous fertilizer includes Controlled Release Nitrogen Fertilizer, the content of the nitrogen in Controlled Release Nitrogen Fertilizer is institute in all nitrogenous fertilizer
The 35% of Nitrogen element total amount, Controlled Release Nitrogen Fertilizer are resin coated urea, and the acquisition time of Controlled Release Nitrogen Fertilizer is 60 days.
Further, the nitrogenous fertilizer of sorghum special-purpose control-release fertilizer according to the present invention can be selected from urea, ammonium chloride, ammonium hydrogen carbonate
With one of ammonium sulfate or more；The phosphate fertilizer of the sorghum special-purpose control-release fertilizer can be selected from monoammonium phosphate, Diammonium phosphate (DAP), cross phosphorus
One of sour calcium, double superhosphate and calcium magnesium phosphate or more；The potash fertilizer of the sorghum special-purpose control-release fertilizer can be potassium sulfate；
It is ferric sulfate that the zinc fertilizer of the sorghum special-purpose control-release fertilizer, which can be zinc sulfate, iron fertilizer,；Furthermore it is possible to special in sorghum according to the present invention
With the ammonium humate soil conditioner of addition 8% in Controlled Release Fertilizer.
The various groups of sorghum special-purpose control-release fertilizers being grouped as using weight percent content as described above can be sorghum
Growth medium provides required nutrition, to provide guarantee for sorghum growth.Since sorghum according to the present invention is dedicated release-controlled
Nutrient needed for fertilizer is grown by sorghum carries out controlled release design, and therefore, this fertilizer can be by sorghum during the growth of sorghum
It is absorbed, there is certain protective effect to soil quality, slow down the salt accumulation of soil.
The effect of sorghum special-purpose control-release fertilizer according to the present invention will be illustrated according to experiment below.Below to using root
Sorghum is planted respectively and is compared according to special-purpose control-release fertilizer of the invention, conventional composite fertilizer, wherein from the growth indexes and production of sorghum
Two aspects are measured to compare the effect of two kinds of fertilizer.
It is prepared herein using sorghum special-purpose control-release fertilizer component as described above according to the present invention, that is, uses 265 parts of weights
Measure common urea, 200 parts by weight Controlled Release Nitrogen Fertilizers, 217 parts sulfuric acid potassium, 148 parts by weight of phosphoric acid monoammoniums, 25 parts sulfuric acids
Ammonium, 30 parts by weight white vitriols, 30 parts by weight ferrous sulfate heptahydrates, 80 parts by weight ammonium humates and 5 parts by weight dicyandiamides.Its
In, the content of effective chemical element with the weight percent of pure nutrition calculation be respectively as follows: nitrogen be 23%, phosphorus pentoxide 9%,
Potassium oxide is 13%, sulphur 0.6%, and iron 0.5%, zinc are 0.6% and ammonium humate is 8%.
Sorghum special-purpose control-release fertilizer according to the present invention is suitable for northern cinnamon soil, in the prosperous machinery farmer in Shunyi District Zhenghai Bei little Ying
Specialty Co-operative Organization, trial crops are sorghum.The result shows that applying sorghum special-purpose control-release fertilizer component preparation according to the present invention per acre
53 kilograms of Controlled Release Fertilizer, processing 3 (Controlled Release Fertilizer, 23-9-13 (its indicate nitrogen content be 23%, phosphorus pentoxide content 9%, oxygen
Change the special-purpose control-release fertilizer that potassium content is 13%, similarly hereinafter)) yield highest, reach 434.1 kgs/acre, high compared with blank control 37.8 is public
Pound/acre, 2 (Common compound fertilizer, 16-15-14) yield of processing are higher, are 410.8 kgs/acre；Handling 1 (blank control) yield is
249.0 kg/acre.
As shown in table 1 below, it shows using sorghum special-purpose control-release fertilizer according to the present invention and conventional composite fertilizer, not fertilizer test
It is compared in growth indexes and yield.
Test one
Test site: the prosperous machinery farmer Specialty Co-operative Organization in Shunyi District Zhenghai Bei little Ying.
Trial crops: sorghum varieties of plant: red Mao Liang 6.
Plot area: 18 ㎡.
Plant spacing: line-spacing 65cm.
It is colonized the date: on June 8th, 2017
Test result
By the end of October, Controlled Release Fertilizer test concentrate surveying and be produced, 4m is chosen in each processing2Typical sampling point individually harvests, dries in the air
It shines, the production of threshing meter, and carries out conventional chambers species test, be then converted to every per mu yield.To each processing biomass of test and production
Amount is investigated, measurement result such as following table.
Breeding time measurement result shows: 1 (blank) plant height of processing and sample result number are minimum；Processing 2 (conventional composite fertilizer,
16-15-14) plant height, spike length, simple grain fringe weight, mass of 1000 kernel, yield are higher, hence it is evident that are higher than blank control.3 (controlled release of fertilizer treatment
Fertilizer, 23-9-13) plant height, spike length, simple grain fringe weight, mass of 1000 kernel, yield reaches highest, apply Controlled Release Fertilizer and it is appropriate in micro member
Element can promote the growth of plant, improve Output of Sorghum.
Although referring to illustrative embodiments, invention has been described, but it is to be understood that the present invention does not limit to
The specific embodiment that Yu Wenzhong is described in detail and shows, without departing from claims limited range, this
Field technical staff can make various changes to the illustrative embodiments.
Claims (9)
1. a kind of sorghum special-purpose control-release fertilizer, including nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, sulfur fertilizer, zinc fertilizer and iron fertilizer,
It is characterized in that, the content of various effective chemical elements is in the sorghum special-purpose control-release fertilizer with the weight of pure nutrition calculation
Amount percentage is respectively as follows:
Nitrogen is 23%-25%, phosphorus pentoxide 8%-10%, potassium oxide 12%-14%, sulphur 0.41%-0.82%, iron
It is 7%-9% for 0.4%-0.7%, zinc 0.4%-0.8% and humic acid, wherein the nitrogenous fertilizer includes Controlled Release Nitrogen Fertilizer,
The content of nitrogen in the Controlled Release Nitrogen Fertilizer for institute's Nitrogen element total amount in the nitrogenous fertilizer 32%-39%.
2. sorghum special-purpose control-release fertilizer according to claim 1, which is characterized in that in the sorghum special-purpose control-release fertilizer, respectively
The content of the effective chemical element of kind is respectively as follows: with the weight percent of pure nutrition calculation
Nitrogen is 23%, phosphorus pentoxide 9%, potassium oxide 13%, sulphur 0.6%, and iron 0.5%, zinc are 0.6% and rotten
Growing sour ammonium is 8%.
3. sorghum special-purpose control-release fertilizer according to claim 2, which is characterized in that nitrogen in the Controlled Release Nitrogen Fertilizer contains
Amount is 35% of institute's Nitrogen element total amount in the nitrogenous fertilizer.
4. sorghum special-purpose control-release fertilizer according to claim 1, which is characterized in that the Controlled Release Nitrogen Fertilizer is coated with resin urine
Element.
5. sorghum special-purpose control-release fertilizer according to claim 3 or 4, which is characterized in that the acquisition time of the Controlled Release Nitrogen Fertilizer is
60 days.
6. sorghum special-purpose control-release fertilizer according to claim 1, which is characterized in that in the sorghum special-purpose control-release fertilizer, respectively
The parts by weight of the effective chemical element of kind are respectively as follows:
260 parts~280 parts of common urea, 185 parts~215 parts Controlled Release Nitrogen Fertilizers, 200 parts~230 parts of potassium sulfate, 130 parts~
150 parts of monoammonium phosphate, 20 parts~30 parts of ammonium sulfate, 25 parts~35 parts of white vitriol, 25 parts~35 parts of seven water sulphur
Sour ferrous, 80 parts~100 parts of ammonium humate and 5 parts~10 parts of dicyandiamide.
7. sorghum special-purpose control-release fertilizer according to claim 6, which is characterized in that in the sorghum special-purpose control-release fertilizer, respectively
The parts by weight of the effective chemical element of kind are respectively as follows:
265 parts of weight common ureas, 200 parts by weight Controlled Release Nitrogen Fertilizers, 217 parts sulfuric acid potassium, 148 parts by weight of phosphoric acid monoammoniums, 25
Parts sulfuric acid ammonium, 30 parts by weight white vitriols, 30 parts by weight ferrous sulfate heptahydrates, 80 parts by weight ammonium humates and 5 weight
Part dicyandiamide.
8. sorghum special-purpose control-release fertilizer according to claim 1, which is characterized in that the phosphate fertilizer is selected from monoammonium phosphate, phosphoric acid
At least one of diammonium, calcium superphosphate, double superhosphate and calcium magnesium phosphate.
9. sorghum special-purpose control-release fertilizer according to claim 1, which is characterized in that the potash fertilizer is potassium sulfate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910051174.3A CN109574756A (en) | 2019-01-18 | 2019-01-18 | Sorghum special-purpose control-release fertilizer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910051174.3A CN109574756A (en) | 2019-01-18 | 2019-01-18 | Sorghum special-purpose control-release fertilizer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113273368A (en) * | 2021-05-21 | 2021-08-20 | 重庆市农业科学院 | Reduced application optimization method of controlled-release nitrogen fertilizer for sorghum |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS516901A (en) * | 1974-07-05 | 1976-01-20 | Dainichiseika Color Chem | GOSEI FUSHOKU |
| CN1235944A (en) * | 1999-06-18 | 1999-11-24 | 徐忱修 | Polyary long acting organic compound fertilizer and its preparing method |
| CN101857515A (en) * | 2010-06-10 | 2010-10-13 | 北京市农林科学院 | Coated controlled-release fertilizer specialized for summer corns and preparation method thereof |
-
2019
- 2019-01-18 CN CN201910051174.3A patent/CN109574756A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS516901A (en) * | 1974-07-05 | 1976-01-20 | Dainichiseika Color Chem | GOSEI FUSHOKU |
| CN1235944A (en) * | 1999-06-18 | 1999-11-24 | 徐忱修 | Polyary long acting organic compound fertilizer and its preparing method |
| CN101857515A (en) * | 2010-06-10 | 2010-10-13 | 北京市农林科学院 | Coated controlled-release fertilizer specialized for summer corns and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113273368A (en) * | 2021-05-21 | 2021-08-20 | 重庆市农业科学院 | Reduced application optimization method of controlled-release nitrogen fertilizer for sorghum |
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Application publication date: 20190405 |