CN1359882A - Multifunctional effect-elongating agent for nitrogen fertilizer - Google Patents
Multifunctional effect-elongating agent for nitrogen fertilizer Download PDFInfo
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- CN1359882A CN1359882A CN00134339A CN00134339A CN1359882A CN 1359882 A CN1359882 A CN 1359882A CN 00134339 A CN00134339 A CN 00134339A CN 00134339 A CN00134339 A CN 00134339A CN 1359882 A CN1359882 A CN 1359882A
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- nitrogen fertilizer
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Abstract
An effect-elongating agent for multifunctional N fertilizer is prepared from nitrolime (5-30 pts.wt.) and weathered coal (50-95 pts.wt.) through mechanical stirring. It is applied by mixing it with fertilizer. Its advantages are high effect on cleaning soil and controlling disease and pests, and low cost.
Description
The present invention relates to additive, specifically a kind of multifunctional effect-elongating agent for nitrogen fertilizer.
Nitrogenous fertilizer is to use maximum fertilizer varieties in China's agriculture production, and its turnout and amount of application increase year by year, and particularly in some developed areas, expensive rural laborer's cost makes people abandon the tradition of using fertilizer.The substitute is the input of a large amount of chemical fertilizer.It is predicted: its consumption will reach more than 2,000 ten thousand tons 21 century.But the utilization ratio at China's nitrogenous fertilizer is lower, utilization ratio as blood urea nitrogen only is 30-40%, other nitrogen fertilizers utilization ratios are lower, most of nitrogenous fertilizer is among various approach are lost in environment, both environment had been caused pollution, increased agriculture production cost again, therefore, the research that improves fertilizer effectiveness is particularly important.
Nitrogenous fertilizer enters behind the soil and between the surrounding medium, follows all the time and series of physical, chemistry and biochemical conversion effect taking place.Provide nitrogen nutrition for crop on the one hand, also cause the loss of nitrogen on the other hand.For this reason, relevant scholar is studying the problem that how to improve nitrogen utilization efficiency both at home and abroad.At present, the approach that improves nitrogen utilization efficiency mainly contains three aspects: the 1) method of physics: the one, increase urea granules; The 2nd, wrapped up with capsulating material; 2) Hua Xue method: the alienation thing (as: urea formadehyde etc.) of making urea.These two kinds of methods all are by slowing down the dissolution rate of urea, prolonging the fertilizer efficiency of urea.Though aforesaid method has certain effect, effect is not ideal enough, does not fundamentally solve the enzymically hydrolyse problem of urea, does not also have the prolongation effect.Improve the cost of urea in addition again greatly, limited application.In addition, because the macromolecular structure of itself is difficult to degraded, also may produce detrimentally affect to environment.3) biochemical method: according to chemistry and the biochemical conversion process of nitrogen in soil, in nitrogen, add an amount of urease inhibitor and nitrification inhibitor, the conversion process of control nitrogen in soil, thus reach the purpose that improves nitrogen utilization efficiency.This approach is to be accepted by more scientist, and obtained remarkable progress, as Agrotain urease inhibitor commercialization that: USA I C-Agrico company produces, German SKW company produces the granular urea that contains urease inhibitor and nitrification inhibitor and has been widely used in producing.Begin the research of this respect from the seventies in China, the eighties has had considerable progress, as: the long-acting carbamide (containing cyanogen quinone urea) of Shenyang Inst. of Applied Ecology, Chinese Academy of Sciences's development, effect is better, but on price, go up along with price of chemical products, rise to 28000 yuan per ton from 8000 yuan per ton, influenced its promotion and application.
In order to overcome above-mentioned deficiency, it is effective to the invention provides a kind of inhibition, and cost is low, easily promote and can cleaning soil, prevent the multifunctional effect-elongating agent for nitrogen fertilizer of disease and pest and weed growth.
To achieve these goals, technical scheme of the present invention is: by weight, be made up of for 50～95 parts 5～30 parts of cyanamide calcium, weathered coal;
Can add trace element in the described multifunctional effect-elongating agent for nitrogen fertilizer; Described weathered coal can replace with brown coal or peat; Described trace element is zinc or boron;
Its preparation method is: puddle by machinery and form, mix or add in the composite fertilizer with nitrogenous fertilizer and use.
The present invention has following advantage:
1. suppress effective.The present invention be directed to the loss approach and the low problem of utilization ratio of nitrogen, adopt cyanamide calcium and weathered coal (or peat, brown coal) make effect-elongating agent for nitrogen fertilizer, have outside the effect that prolongs the fertilizer effectiveness phase, this effect-elongating agent for nitrogen fertilizer is applicable to various nitrogenous fertilizer, be ideal nitrogenous fertilizer companion, also be to produce various long-acting multiple (mixing) Hefei, the additive of the durable composite fertilizer of various crop special uses, can make the fertilizer effectiveness phase extend to 90-120 days, nitrogen utilization efficiency improves more than 10 percentage points, nutrient content such as use and to improve crop yield 10%～20%, obtain same output and will save 20% of fertilizer amount.
2. has multiple function.The present invention adopts cyanamide calcium, can also cleaning soil, prevent disease and pest and reduce the multiple efficacies of weed growth.Because the weathered coal that the present invention adopts is a natural organic substance, contains organic matter and humic acid, can promote the formation of soil agreegate, improves soil water storage, protect fertile function; Also contain the required nutritive substance of plant growth, and can stimulate the growth of root system and nutrient absorbing.
3. the present invention is cheap, and is safe and effective, uses flexibly, simple and easy to operate, is easy to promote.
Below in conjunction with embodiment the present invention is described in further detail.
Embodiment 1
System is made up of cyanamide calcium 5g, weathered coal 94g by weight, adds trace element zinc 1g.
Preparation method: puddle by machinery and to form, mix with urea and use.The present invention sees Table 1 to the effect of increasing production of corn
Table 1 multifunctional effect-elongating agent for nitrogen fertilizer is to improving the effect of corn yield
| Handle | The per mu yield volume increase increases (Kg/ mu) (Kg/ mu) (%) |
| Common urea contrast (CK) urea+effect-elongating agent for nitrogen fertilizer | ??478.5 ??550.5????????72??????15.04 |
Principle of the present invention is:
The present invention selects cyanamide calcium (lime nitrogen) and weathered coal (or brown coal, peat) to be raw material, through described proportioning, make a kind of nitrogenous fertilizer inhibitor, can with various nitrogenous fertilizer in the corresponding ratio long-acting nitrogen fertilizer of making formulated together, also can be used as long-acting multiple (mixing) Hefei of Additive Production in multiple (mixing) Hefei or long-acting multiple (mixing) Hefei of suitable various crop special uses.
Cyanamide calcium is lime nitrogen again, and its molecular formula is: CaCN
2Contain (N) 20%, cyanamide calcium itself can be used as nitrogenous fertilizer and uses, and has effects such as weeding, desinsection, sterilization in addition concurrently.After cyanamide calcium is manured into soil, under the effect of water and carbonic acid gas,, form cyanamide nitrogen, be converted into the ammonium nitrogen that crop can absorb at last through chemical reaction.Formed free cyanogen ammonia will further aggregate into not labile dicyandiamide in this conversion process, dicyandiamide is the tangible nitrification inhibitor of a kind of inhibitor effect, utilize effect and the transformation characteristics of cyanamide calcium in soil, it is added in the nitrogenous fertilizer go, to prolong its fertilizer efficiency period, improve the fertilizer efficiency utilization ratio of nitrogen.In addition, cyanamide calcium also has cleaning soil, prevents the effect of disease and pest and weed growth.
Weathered coal (or peat, brown coal) is natural organic substance, contains abundant organic matter and humic acid.The effect of humic acid is many-sided.The one, promote the formation of soil agreegate, improve soil water storage, protect fertile function; The 2nd, adjust nutrition quality, reach nutrient balance, and can improve the utilization ratio of nitrogenous fertilizer and phosphate fertilizer, can also activate trace element, quicken it and transform and absorption; The 3rd, stimulate the growth of root system and to nutrient absorbing, in addition to the symbiotic microorganism of crop, play an important role as the active raisings of symbiotic microorganism of root nodule bacterium, mycorhiza, vinelandii etc.
Embodiment 2
Difference from Example 1 is: by weight, be made up of 20g cyanamide calcium, 79g brown coal, add the 1g micronutrient boron.
Preparation method: puddle by machinery and to form, mix with urea and use.The present invention sees Table 2 to the effect of increasing production of corn
Table 2 multifunctional effect-elongating agent for nitrogen fertilizer is to improving the effect of output of cotton
| Handle | The per mu yield volume increase increases (Kg/ mu) (Kg/ mu) (%) |
| Common urea (CK) urea+effect-elongating agent for nitrogen fertilizer | ??161.2 ??185.3???????24.1?????14.9 |
Embodiment 3
Difference from Example 1 is:
By weight, form by 30% cyanamide calcium and 70% peat.
Preparation method: puddle by machinery and to form, mix with urea and use.The present invention sees Table 3 to the prevention effect to the Chinese cabbage club root
Table 3 multifunctional effect-elongating agent for nitrogen fertilizer is to the prevention effect of Chinese cabbage club root
| Handle | Sickness rate disease index prevention effect (%) (%) |
| Urea (contrast) urea+multifunctional effect-elongating agent for nitrogen fertilizer | ??70.5???????42.3 ??35.8???????16.2?????????61.7 |
Claims (5)
1. a multifunctional effect-elongating agent for nitrogen fertilizer is characterized in that: by weight, be made up of for 50～95 parts 5～30 parts of cyanamide calcium, weathered coal.
2. according to the described multifunctional effect-elongating agent for nitrogen fertilizer of claim 1, it is characterized in that: can add trace element in the described sustained release drug.
3. according to the described multifunctional effect-elongating agent for nitrogen fertilizer of claim 1, it is characterized in that: described weathered coal can replace with brown coal or peat.
4. according to the described multifunctional effect-elongating agent for nitrogen fertilizer of claim 2, it is characterized in that: described trace element is zinc or boron.
5. preparation method according to the described multifunctional effect-elongating agent for nitrogen fertilizer of claim 1 is characterized in that: puddle by machinery and form, mix or add in the composite fertilizer with nitrogenous fertilizer and use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001343394A CN1151998C (en) | 2000-12-21 | 2000-12-21 | Multifunctional effect-elongating agent for nitrogen fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001343394A CN1151998C (en) | 2000-12-21 | 2000-12-21 | Multifunctional effect-elongating agent for nitrogen fertilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1359882A true CN1359882A (en) | 2002-07-24 |
| CN1151998C CN1151998C (en) | 2004-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001343394A Expired - Fee Related CN1151998C (en) | 2000-12-21 | 2000-12-21 | Multifunctional effect-elongating agent for nitrogen fertilizer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805616B (en) * | 2009-02-16 | 2012-07-04 | 中国科学院沈阳应用生态研究所 | Disease-resistant synergy-type conditioner of protected horticultural vegetable field soil and preparation method thereof |
| CN103833480A (en) * | 2014-03-25 | 2014-06-04 | 山东棉花研究中心 | Environment-friendly fertilizer for okra and production method thereof |
-
2000
- 2000-12-21 CN CNB001343394A patent/CN1151998C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805616B (en) * | 2009-02-16 | 2012-07-04 | 中国科学院沈阳应用生态研究所 | Disease-resistant synergy-type conditioner of protected horticultural vegetable field soil and preparation method thereof |
| CN103833480A (en) * | 2014-03-25 | 2014-06-04 | 山东棉花研究中心 | Environment-friendly fertilizer for okra and production method thereof |
| CN103833480B (en) * | 2014-03-25 | 2016-04-06 | 山东棉花研究中心 | A kind of okra medicine fertilizer and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1151998C (en) | 2004-06-02 |
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Granted publication date: 20040602 Termination date: 20100121 |