CN109608287A - Alfalfa special-purpose control-release fertilizer - Google Patents
Alfalfa special-purpose control-release fertilizer Download PDFInfo
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- CN109608287A CN109608287A CN201910049832.5A CN201910049832A CN109608287A CN 109608287 A CN109608287 A CN 109608287A CN 201910049832 A CN201910049832 A CN 201910049832A CN 109608287 A CN109608287 A CN 109608287A
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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
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B17/00—Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
-
- 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
- C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Soil Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
The present invention relates to a kind of alfalfa special-purpose control-release fertilizers, it includes nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, sulfur fertilizer, and molydbenum fertilizer, in alfalfa 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 20%-22%, phosphorus pentoxide is 8%-10%, potassium oxide is 15%-17%, sulphur is 0.4%-1.7%, molybdenum is 1.1%-4.3%, dicyandiamide is 0.5%-1% 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 36.3%-45%.Fertilizer nutrient proportion as described above according to the present invention is reasonable, meet demand of the alfalfa time of infertility to nutrient, utilization rate of fertilizer is high, saves the investment and cost of labor of top dressing, appropriate molydbenum fertilizer is added simultaneously, lays the foundation for alfalfa quality improving 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 with the alfalfa broadcast suitable for seed manure
Controlled Release 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.
Alfalfa is the global cultivation of one kind, wide adaptability, legume forage crop best in quality, because it is with high egg
White, homovitamin, high mineral, high-micro-element are referred to as " King of Pasture ", have more than 2000 years cultivation histories in China, are
One of the whole world and China's cultivated area maximum, most important high-quality legume forage, have resistance strong, equal spies applied widely
Point.Alfalfa Growing is more in salt-soda soil and Blown-sand soil, and soil pH is higher, barren soil, lacks effective nutriment.For
Raising yield, manager's blindness of applying fertilizer is big, mostly according to oneself empiric fertilization, clover is caused to dive as the huge of forage grass
Power fails to give full play to.
Urban and rural residents, China cause the shortage of China's feed grain to seriously affect us the sustainable growth of meat product demand
Grain security, and alfalfa is quick for filling up our animal husbandry because of its higher forage yield and preferable nutritive value
Development has very important effect the huge notch that feed grain needs.Therefore, the yield and quality for promoting alfalfa is outstanding
It is important.Some manufacturing enterprises or peasant are in actual production in order to chase the benefit of yield and quality, in production practices
The middle a large amount of nitrogenous fertilizer of application, it is suppressed that the nitrogen fixation of alfalfa wastes money although having reached the set goal
Source causes the environmental pollution that should be avoided.When carrying out fertilizing management, influenced by field crop fertilizer management it is serious,
Most of alfalfa cultivation persons indiscriminately imitate production estimation fertilizer application mode in clover fertilizing management, and fertilization mode is still using base fertilizer
Add the method for top dressing.Carrying out top dressing fertilising to alfalfa, there are some drawbacks, first is that damaging to Medicago sativa big；Second is that
Arduously, it takes a lot of work, increases cost input and peasant burden；Third is that excessive fertilization causes the low fertilizer loss of utilization rate of fertilizer serious, make
At the wasting of resources and pollution environment.
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 alfalfa 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 alfalfa and entirely giving birth to
Demand of the phase to nutrient；Reduce the loss such as elution of fertilizer；Dose and number can be reduced, labour is saved, improves fertilizer
Utilization efficiency improves the yield and quality, and saves 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 one kind to be suitable for Growth of Alfalfa
Special-purpose control-release fertilizer, it fully takes into account the nutrient requirement characteristics of Growth of Alfalfa phase, by N P and K and middle microelement with
Suitable ratio cooperation, and suitable dicyandiamide, humic acid is added.It not only can satisfy the need of alfalfa the previous growth
It wants, meets the nutrient demand of branching stage, squaring period, florescence, maturity period, reduce fertilizer loss caused by multiple top dressing, improve
Herbage quality can be improved in fertilizer efficiency, the molydbenum fertilizer of addition, and soil productivity can be improved in the humic acid of addition, and the dicyandiamide of addition may be used also
To improve fertilizer effectiveness.
According to an embodiment of the invention, a kind of alfalfa special-purpose control-release fertilizer is provided, the alfalfa special-purpose control-release fertilizer packet
Nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, sulfur fertilizer and molydbenum fertilizer are included, in alfalfa special-purpose control-release fertilizer, the content of various effective chemical elements is with pure
The weight percent of nutrition calculation be respectively as follows: nitrogen be 20%-22%, phosphorus pentoxide 8%-10%, potassium oxide 15%-
17%, sulphur 0.4%-1.7%, molybdenum 1.1%-4.3%, dicyandiamide are 0.5%-1% and humic acid is 7%-9%,
Middle nitrogenous fertilizer includes Controlled Release Nitrogen Fertilizer, the content of the nitrogen in Controlled Release Nitrogen Fertilizer for institute's Nitrogen element total amount in nitrogenous fertilizer 36.3%-
45%.
The fertilizer nutrient proportion according to the present invention being formulated as described above rationally, meets the alfalfa time of infertility to nutrient
Demand, utilization rate of fertilizer is high, can remarkably promote the growth of Seedling of Alfalfa, improves alfalfa branch amount, increases biology
Amount.After molydbenum fertilizer, the content of molybdenum in later period plant can be promoted, laid the foundation to improve the yield and quality later.Pass through application
The fertilizer being formulated as described above can reduce the unreasonable application of chemical fertilizer, it is therefore prevented that the waste of fertilizer, while can also avoid chasing after
The investment of fertile bring human and material resources and fund reduces production cost.
The preferred embodiment of alfalfa special-purpose control-release fertilizer according to the present invention, in alfalfa special-purpose control-release fertilizer,
The content of various effective chemical elements is respectively as follows: that nitrogen is 20%, phosphorus pentoxide is with the weight percent of pure nutrition calculation
9%, potassium oxide 16%, sulphur 1.6%, molybdenum 3.2%, dicyandiamide are 0.5% and humic acid is 8%.
Nitrogen in the further preferred embodiment of alfalfa special-purpose control-release fertilizer according to the present invention, in Controlled Release Nitrogen Fertilizer
The content of element is 40% of institute's Nitrogen element total amount in nitrogenous fertilizer.
Another preferred embodiment of alfalfa special-purpose control-release fertilizer according to the present invention, Controlled Release Nitrogen Fertilizer are coated with resin
Urea.
In an also preferred embodiment for alfalfa special-purpose control-release fertilizer according to the present invention, the release of Controlled Release Nitrogen Fertilizer
Phase is 60 days.
Another preferred embodiment of alfalfa special-purpose control-release fertilizer according to the present invention, it is dedicated release-controlled in alfalfa
In fertilizer, the parts by weight of various effective chemical elements are respectively as follows: 175 parts~220 parts common ureas, 200 parts~220 parts Controlled-release nitrogens
Fertilizer, 130 parts~165 parts monoammonium phosphate, 250 parts~285 parts potassium chloride, 65 parts~70 parts ammonium sulfate, 20 parts~80 part four hydration
Ammonium molybdate, 5 parts~10 parts dicyandiamides and 70 parts~90 parts ammonium humate soil conditioners.
It is dedicated in alfalfa in another preferred embodiment of alfalfa special-purpose control-release fertilizer according to the present invention
In Controlled Release Fertilizer, the parts by weight of various effective chemical elements are respectively as follows: 175 parts of common ureas, 200 parts of Controlled Release Nitrogen Fertilizers, 148 parts of phosphorus
Sour monoammonium, 267 parts of potassium chloride, 65 parts of ammonium sulfate, 60 parts of Ammonium Molybdate Tetrahydrates, 5 parts of dicyandiamides and 80 parts of ammonium humate soil
Conditioner.
Another preferred embodiment of alfalfa special-purpose control-release fertilizer according to the present invention, phosphate fertilizer be selected from monoammonium phosphate,
At least one of Diammonium phosphate (DAP), calcium superphosphate, double superhosphate and calcium magnesium phosphate.
In another preferred embodiment of alfalfa special-purpose control-release fertilizer according to the present invention, potash fertilizer is potassium chloride.
Compared with prior art, the nutrient formula of alfalfa special-purpose control-release fertilizer according to the present invention is reasonable, meets pale reddish brown
Clover breeding time grows the demand to nutrient.Utilization rate of fertilizer is high, can remarkably promote the growth of alfalfa, be added in fertilizer
Suitable molydbenum fertilizer and the accumulation for promoting molybdenum in plant are laid a good foundation to improve Alfalfa Output and quality.Together
When can reduce the investment of top dressing bring human and material resources and fund, improve 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 a kind of improved alfalfa special-purpose control-release fertilizer, the alfalfa special-purpose control-release fertilizer include nitrogenous fertilizer,
Phosphate fertilizer, potash fertilizer, sulfur fertilizer and molydbenum fertilizer, which can also include soil conditioner certainly can also be into
One step includes calcareous fertilisers.In alfalfa special-purpose control-release fertilizer according to the present invention, the parts by weight point of various effective chemical elements
Not are as follows: 175 parts~220 parts common ureas, 200 parts~220 parts Controlled Release Nitrogen Fertilizers, 130 parts~165 parts monoammonium phosphate, 250 parts~
285 parts of potassium chloride, 65 parts~70 parts ammonium sulfate, 20 parts~80 parts Ammonium Molybdate Tetrahydrates, 5 parts~10 parts dicyandiamides and 70 parts~
90 parts of ammonium humate soil conditioners.It should be noted that can use known in the art and common various nitrogenous fertilizer, phosphorus
Fertilizer, potash fertilizer, sulfur fertilizer and molydbenum fertilizer, as long as the weight of various effective chemical elements defined above can be reached after the mixing of these fertilizer
Measure number.
Advantageously, the parts by weight of each effective chemical element are respectively as follows: 175 parts of common ureas, 200 parts of Controlled Release Nitrogen Fertilizers, 148
Part monoammonium phosphate, 267 parts of potassium chloride, 65 parts of ammonium sulfate, 60 parts of Ammonium Molybdate Tetrahydrates, 5 parts of dicyandiamides and 80 parts of ammonium humates
Soil conditioner.
Formula fertilizer as described above according to the present invention can not only meet alfalfa in breeding time to various fertilizer
Demand, but also can be obtained by this fertilizer its growth needed for middle microelement.In addition, by application according to this hair
Bright alfalfa special-purpose control-release fertilizer can also greatly save rate of fertilizer in Alfalfa Growing, mitigate environmental pollution,
The waste of fertilizer is prevented, while the investment of top dressing bring human and material resources and fund can also be reduced, to improve income
Rate.The yield and quality of alfalfa can also be improved using the alfalfa special-purpose control-release fertilizer of formula according to the present invention.
The content of various effective chemical elements of alfalfa special-purpose control-release fertilizer according to the present invention is with pure nutrition calculation
Weight percent is respectively as follows: that nitrogen is 20%-22%, phosphorus pentoxide 8%-10%, potassium oxide 15%-17%, sulphur are
0.4%-1.7%, molybdenum 1.1%-4.3%, dicyandiamide are 0.5%-1% and humic acid is 7%-9%.According to the present invention
Alfalfa special-purpose control-release fertilizer in, nitrogenous fertilizer includes Controlled Release Nitrogen Fertilizer, and the content of the nitrogen in Controlled Release Nitrogen Fertilizer is in all nitrogenous fertilizer
The 36.3%-45% of institute's Nitrogen element total amount.Further, the content of various effective chemical elements is with the weight of pure nutrition calculation
Percentage be respectively as follows: nitrogen be 20%, phosphorus pentoxide 9%, potassium oxide 16%, sulphur 1.6%, molybdenum 3.2%, dicyandiamide
It is 8% for 0.5% and humic acid.Here, nitrogenous fertilizer includes Controlled Release Nitrogen Fertilizer, the content of the nitrogen in Controlled Release Nitrogen Fertilizer is all nitrogen
The 40% of institute's Nitrogen element total amount in fertilizer.Advantageously, Controlled Release Nitrogen Fertilizer is resin coated urea, and the acquisition time of Controlled Release Nitrogen Fertilizer is 60
It.
Further, the nitrogenous fertilizer of alfalfa special-purpose control-release fertilizer according to the present invention can be selected from urea, ammonium chloride, carbonic acid
One of hydrogen ammonium and ammonium sulfate or more；The phosphate fertilizer of the alfalfa special-purpose control-release fertilizer can be selected from monoammonium phosphate, phosphoric acid
One of diammonium, calcium superphosphate, double superhosphate and calcium magnesium phosphate or more；The potash fertilizer of the alfalfa special-purpose control-release fertilizer
It can be potassium sulfate or potassium chloride；Wherein, calcareous fertilisers can be one of calcium superphosphate, double superhosphate and calcium magnesium phosphate or two
Kind；The molydbenum fertilizer of the alfalfa special-purpose control-release fertilizer can be Ammonium Molybdate Tetrahydrate；Furthermore it is possible in pale reddish brown lucerne according to the present invention
The humic acid soil conditioner of addition 8% in Mu special-purpose control-release fertilizer.
Use the various groups of alfalfa special-purpose control-release fertilizers being grouped as of weight percent content as described above can be for
Growth of Alfalfa mid-term provides required nutrition, to provide guarantee for Growth of Alfalfa.Due to according to the present invention
Nutrient needed for alfalfa special-purpose control-release fertilizer presses Growth of Alfalfa carries out controlled release design, and therefore, this fertilizer is in alfalfa
Growth during can be absorbed by alfalfa, have certain protective effect to soil quality, slow down the salinity of soil
Accumulation.
The effect of alfalfa special-purpose control-release fertilizer according to the present invention will be illustrated according to experiment below.Below to adopting
It plants alfalfa respectively with special-purpose control-release fertilizer according to the present invention, traditional fertilization to compare, wherein from the life of alfalfa
Two aspects of long pointer and yield compare the effect of two kinds of fertilizer.
It is prepared herein using alfalfa special-purpose control-release fertilizer component as described above according to the present invention, that is, uses 175
Part common urea, 200 parts of Controlled Release Nitrogen Fertilizers, 148 parts of monoammonium phosphate, 267 parts of potassium chloride, 65 parts of ammonium sulfate, 60 part of four molybdic acid hydrate
Ammonium, 5 parts of dicyandiamides and 80 parts of ammonium humate soil conditioners.Wherein, the content of effective chemical element is with pure nutrition calculation
Weight percent is respectively as follows: that nitrogen is 22% (wherein 40% is Controlled-release nitrogen), phosphorus pentoxide 9%, potassium oxide 16%, sulphur are
1.6%, molybdenum 3.2%, dicyandiamide are 0.5% and humic acid is 8%.
Alfalfa special-purpose control-release fertilizer according to the present invention is suitable for northern calacareous soil, in the Changping District town Bei Qijia swallow
Dan Cun, trial crops are alfalfa.The result shows that per hectare applies alfalfa special-purpose control-release fertilizer component according to the present invention
450 kilograms of the Controlled Release Fertilizer of preparation, (special-purpose control-release fertilizer, (it indicates that nitrogen content is that 20%, phosphorus pentoxide contains to 20-9-15 for processing 1
The special-purpose control-release fertilizer that amount is 9%, potassium oxide content is 15%, similarly hereinafter)) yield highest, reach 2274 kgs/acre, compared with blank pair
According to 1260 kgs/acre high；Handling 2 (traditional fertilization (14-21-10)) yield is 1647 kgs/acre, and higher than blank control 633 is public
Pound/acre；Handle 3 1014 kgs/acre of (blank control) yield.
As shown in table 1 below, it shows using alfalfa special-purpose control-release fertilizer according to the present invention and traditional fertilization (14-21-
10), fertilizer test is not compared in growth indexes and yield.
Test one
Test site: the Changping District town the Bei Qijia village Yan Dan
Trial crops: Alfalfa Growing kind: middle lucerne No.1
Plot area: long 10 meters wide 3 meters 30 square metres total.
Sow line-spacing: drill spacing 30cm, seed level 1-3cm, 22.5 kilograms/hm of application rate2。
Sowing time: on March 21st, 2016 harvest time: May 26 (first batch), October 14 (second batch)
Test result
(1) physiological index determining result before cradling for the first time
May 25 test each processing alfalfa plant height and single branch amount etc. are investigated, measurement result is as follows
Table.
For the first time cradle before physiological index determining the result shows that: processing 1 (special-purpose control-release fertilizer) plant height and single branch amount it is each
Item physiological index determining result is above 3 (blank controls) of processing 2 (traditional fertilization) and processing, handles 3 plant heights and single branch
Number items physiological index determining result is in floor level.Illustrate that applying special-purpose control-release fertilizer is able to satisfy alfalfa each breeding time
Nutritional need and help to improve yield.
(2) yield result
May 26, October 14 respectively Controlled Release Fertilizer test concentrate and survey production, 4 homalographics are chosen in each processing
Sample prescription, each sample prescription harvest whole aerial parts and weigh fresh weight, sampling result twice is added to obtain the yield of each sample prescription, then
By the yield that each processing is calculated.
Survey produce the result shows that, handle 1 (special-purpose control-release fertilizer, 20-9-15) yield highest, reach 2274 kgs/acre, it is higher
Biomass is conducive to yield composition, 1260 kgs/acre high compared to blank control；Handle 2 (traditional fertilization (14-21-10)) though
Compound fertilizer twice so is imposed, but yield does not reach highest；It is minimum to handle 3 (blank control) yield, is 1014 kgs/acre；
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 alfalfa special-purpose control-release fertilizer, including nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, sulfur fertilizer and molydbenum fertilizer, which is characterized in that described
In alfalfa 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 20%-22%, phosphorus pentoxide 8%-10%, potassium oxide 15%-17%, sulphur 0.4%-1.7%, molybdenum 1.1%-
4.3%, dicyandiamide is 0.5%-1% and humic acid is 7%-9%,
Wherein, the nitrogenous fertilizer includes Controlled Release Nitrogen Fertilizer, and the content of the nitrogen in the Controlled Release Nitrogen Fertilizer is nitrogenous in the nitrogenous fertilizer
The 36.3%-45% of element total amount.
2. alfalfa special-purpose control-release fertilizer according to claim 1, which is characterized in that dedicated release-controlled in the alfalfa
In fertilizer, the content of various effective chemical elements is respectively as follows: nitrogen with the weight percent of pure nutrition calculation for 20%, phosphorus pentoxide
For 9%, potassium oxide 16%, sulphur 1.6%, molybdenum 3.2%, dicyandiamide is 0.5% and humic acid is 8%.
3. alfalfa special-purpose control-release fertilizer according to claim 2, which is characterized in that the nitrogen in the Controlled Release Nitrogen Fertilizer
Content be 40% of institute's Nitrogen element total amount in the nitrogenous fertilizer.
4. alfalfa special-purpose control-release fertilizer according to claim 1, which is characterized in that the Controlled Release Nitrogen Fertilizer is coated with resin
Urea.
5. alfalfa special-purpose control-release fertilizer according to claim 3 or 4, which is characterized in that the release of the Controlled Release Nitrogen Fertilizer
Phase is 60 days.
6. alfalfa special-purpose control-release fertilizer according to claim 1, which is characterized in that dedicated release-controlled in the alfalfa
In fertilizer, the parts by weight of various effective chemical elements are respectively as follows: 175 parts~220 parts common ureas, 200 parts~220 parts Controlled-release nitrogens
Fertilizer, 130 parts~165 parts monoammonium phosphate, 250 parts~285 parts potassium chloride, 65 parts~70 parts ammonium sulfate, 20 parts~80 part four hydration
Ammonium molybdate, 5 parts~10 parts dicyandiamides and 70 parts~90 parts ammonium humate soil conditioners.
7. alfalfa special-purpose control-release fertilizer according to claim 6, which is characterized in that dedicated release-controlled in the alfalfa
In fertilizer, the parts by weight of various effective chemical elements are respectively as follows: 175 parts of common ureas, 200 parts of Controlled Release Nitrogen Fertilizers, 148 parts of phosphoric acid one
Ammonium, 267 parts of potassium chloride, 65 parts of ammonium sulfate, 60 parts of Ammonium Molybdate Tetrahydrates, 5 parts of dicyandiamides and 80 parts of ammonium humate soil conditionings
Agent.
8. alfalfa special-purpose control-release fertilizer according to claim 1, which is characterized in that the phosphate fertilizer be selected from monoammonium phosphate,
At least one of Diammonium phosphate (DAP), calcium superphosphate, double superhosphate and calcium magnesium phosphate.
9. alfalfa special-purpose control-release fertilizer according to claim 1, which is characterized in that the potash fertilizer is potassium chloride.
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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 | Multi-element long-acting organic compound fertilizer and preparation method thereof |
| 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 CN201910049832.5A patent/CN109608287A/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 | Multi-element long-acting organic compound fertilizer and preparation method thereof |
| 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 |
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Application publication date: 20190412 |