CN104262048A - Alkaline compound fertilizer for preventing and improving soil acidification and preparation method of alkaline compound fertilizer - Google Patents
Alkaline compound fertilizer for preventing and improving soil acidification and preparation method of alkaline compound fertilizer Download PDFInfo
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- CN104262048A CN104262048A CN201410472389.XA CN201410472389A CN104262048A CN 104262048 A CN104262048 A CN 104262048A CN 201410472389 A CN201410472389 A CN 201410472389A CN 104262048 A CN104262048 A CN 104262048A
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- alkaline
- compound fertilizer
- diammonium phosphate
- alkaline compound
- potassium sulfate
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- Organic Chemistry (AREA)
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Abstract
The invention discloses an alkaline compound fertilizer for preventing and improving soil acidification and a preparation method of the alkaline compound fertilizer, belonging to the technical field of compound fertilizers. The alkaline compound fertilizer comprises the following raw materials in percentage by weight: 10-30% of urea, 6-40% of diammonium phosphate, 0-30% of potassium sulfate, 1-5% of calcium oxide and 1-15% of calcium carbonate. The preparation method comprises the following steps: taking calcium oxide, calcium carbonate, urea and potassium sulfate in a proportion, respectively crushing the obtained raw materials into powder, uniformly mixing, heating the obtained mixture, feeding the obtained object into a drum-type granulator to granulate, after granulating is completed, feeding the obtained product and diammonium phosphate particles in a proportion into a mixer, and uniformly mixing, so that a finished product is obtained. In the alkaline compound fertilizer, by taking calcium oxide as an alkaline component and taking calcium carbonate as an isolating agent and a pH value buffering agent, an alkaline raw material and physiologically acidic potassium sulfate are premixed so as to obtain particles, and then the particles are mixed with diammonium phosphate particles with a pH value similar to that of the particles, so that a situation that the alkaline raw material reacts with the diammonium phosphate so as to cause the loss of nitrogen elements and the activity reduction of phosphorus elements does not occur.
Description
Technical field
The invention belongs to composite fertilizer technical field, particularly a kind ofly to prevent and alkaline composite fertilizer improveing soil acidification and preparation method thereof.
Background technology
Current chemical fertilizer uses in a large number, and the nitrogen in chemical fertilizer and potassium exist (as NH mainly with the form of vitriol and hydrochloride greatly
4cL, NH
4sO
4, KCL, K
2sO
4).After soil executed by the chemical fertilizer of this form, the positively charged ion (NH4 in salt
+, K
+) absorbed in a large number by crop, and the negatively charged ion (CL of correspondence
-, SO4
2-) be still deposited in soil, and the H in soil
+ionic bond, generates corresponding mineral acid, causes soil acidification, and the performance in south China and protecting field (greenhouse) of this situation is particularly serious.The pH value of soil can be low to moderate 5 even lower, and the pH value needed for farm crop normal growth is generally proper at 6-7, thus causes crop failure.The mode that tradition improvement soil acidification adopts is in soil, use white lime Ca(OH)
2, the bad control of consumption, white lime property stable in the air is bad, and the carbon dioxide reaction easily and in air loses activity, and uses also inconvenience, adds cost of labor, uses improperly also to damage crop.
Summary of the invention
The problem of soil acidification is caused in order to alleviate and improve chemical fertilizer, appropriate alkaline components is added in the production process of chemical fertilizer, residual acid ion can be neutralized, thus reach the soil acidification problem alleviating chemical fertilizer and cause, the content of suitable raising alkaline components, can also play a part to improve acidified soil.But directly add alkaline components in composite fertilizer, alkaline components easily chemical reaction occurs with other raw material (as phosphorus and nitrogen) in composite fertilizer, cause nitrogen element evaporation and phosphoric activity to reduce, cause composite fertilizer cannot reach country's specification of quality accordingly.Therefore, in fertilizer, add alkaline components should solve the difficult problem that additive and fertilizer nutrient coexist, make it the state quality standard meeting composite fertilizer.The alkaline components that the present invention adopts is calcium oxide, add neutral calcium carbonate as separant and potential of hydrogen buffer reagent, the monoammonium phosphate of physiological acidity do not selected by phosphoric raw material simultaneously, and select the diammonium phosphate of physiological alkalinity, the pre-granulation of alkaline components is adopted when producing, by the potassium sulfate pre-mixing of basic materials and physiological acidity, improve the pH value of its mixture, due to the existence of buffer reagent calcium carbonate, improve the stability of alkaline components calcium oxide, the pH value simultaneously avoiding mixture is too high, and then mix with diammonium phosphate particle, now two kinds of particle pH value difference are little, can stablize and coexist, therefore alkaline components can not react with diammonium phosphate and cause nitrogen element loss and phosphoric activity to reduce.
On the one hand, embodiments provide and a kind ofly prevent and improve the alkaline composite fertilizer of soil acidification, this alkaline composite fertilizer is the alkaline fertilizer of total nutrient 30%-45%, can improve the soil acidification problem because long-term mugineic acid chemical fertilizer causes.Wherein, the particle be made up of calcium oxide, calcium carbonate, urea and potassium sulfate of this composite fertilizer and diammonium phosphate particle mix; Wherein, the weight percent of each raw material is: urea 10%-30%, diammonium phosphate 6%-40%, potassium sulfate 0%-30%, calcium oxide 1%-5% and calcium carbonate 1%-15%.
Wherein, in the embodiment of the present invention, calcium oxide, calcium carbonate, urea and potassium sulfate carry out granulation (employing conventional granulation processes) by roller pelletizer.In addition, the pH value (by adjusting the ratio of each raw material) of the particle that the calcium oxide in the embodiment of the present invention, calcium carbonate, urea and potassium sulfate are made and the pH value of diammonium phosphate particle are similar and be physiological alkalinity.
On the other hand; the embodiment of the present invention additionally provides the preparation method of aforementioned base composite fertilizer; the method comprises: get calcium oxide, calcium carbonate, urea and potassium sulfate by proportioning and be broken for powdery; mix post-heating to enter roller pelletizer and carry out granulation, enter to mix after mixing tank by proportioning and diammonium phosphate particle after granulation completes and obtain finished product.
To sum up, the beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
1, the alkaline components that the present invention adopts is calcium oxide, and add neutral calcium carbonate as separant and potential of hydrogen buffer reagent, improve the stability of alkaline components calcium oxide, the pH value simultaneously avoiding mixture is too high.
2, the monoammonium phosphate of physiological acidity do not selected by phosphoric raw material, and selects the diammonium phosphate of physiological alkalinity, adopts alkaline components pre-granulation when producing, and by the potassium sulfate pre-mixing of basic materials and physiological acidity, improves the pH value of its mixture.
3, basic materials and diammonium phosphate are separated, avoid nitrogen element loss and the activity that ensure that phosphoric, adopt particle basic materials made to mix with diammonium phosphate particle, now two kinds of particle pH value difference are little, can stablize and coexist.
4, this alkaline composite fertilizer is stablized and is used conveniently.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below the present invention is described in further detail.
1, each content of raw material (weight percent): urea 22%.Diammonium phosphate 32%.Potassium sulfate 30%, calcium oxide 2%, calcium carbonate 14%.
2, preparation method: mix after urea, potassium sulfate, calcium oxide and calcium carbonate being pulverized respectively, carry out granulation after heating by roller pelletizer, adds after granulation completes after diammonium phosphate particle enters mixing tank and mixes, be finished product composite fertilizer.
3, land for growing field crops effect test:
For examination fertilizer: general acidic Chemical Mixed Fertilizer 45%(nitrogen: phosphorus: potassium 15-15-15), alkaline composite fertilizer (aforesaid product, nitrogen: phosphorus: potassium 15-15-15).
For examination soil: yellowish soil, pH value 5.11, organic 40g/kg, alkali-hydrolyzable nitrogen 126.3mg/kg, available phosphorus 15.8mg/kg, available potassium 171mg/kg;
Crop: potato, kind: meter La;
Experimental design: 2 process, 4 repetitions, plot area 20 ㎡;
Process 1: general acidic Chemical Mixed Fertilizer 30kg+ urea 10kg/ mu;
Process 2: alkaline Chemical Mixed Fertilizer 30kg+ urea 10kg/ mu;
Test and management: apply fertilizer to the subsoil on November 16th, 2012 (Chemical Mixed Fertilizer) is sowed afterwards, and on March 2nd, 2013 imposes urea, and May 27 gathered in the crops.
Results and analysis:
Table 1 affects soil pH value for composite fertilizer
Table 1
| Process | PH before fertilising | Fertilising January after pH | PH increase and decrease after January | After results | PH increase and decrease after results |
| 1 | 5.11 | 4.94 | -0.17 | 4.95 | -0.16 |
| 2 | 5.11 | 5.36 | +0.25 | 5.30 | +0.19 |
Table 2 is the impact of composite fertilizer on potato yield
Table 2
Conclusion (of pressure testing): as can be seen from Table 1 and Table 2, on soil, use the output that alkaline composite fertilizer can improve potato, but increase rate is general (but coordinates the effective of white lime compared with general acidic Chemical Mixed Fertilizer, empirical tests its can only improve soil pH value, substantially output can not be improved) but promote soil pH value successful, estimate that continuous administration can reach the effect increasing substantially soil pH value and improving yield.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. prevent and improve the alkaline composite fertilizer of soil acidification, it is characterized in that, its raw material and weight percent are: urea 10%-30%, diammonium phosphate 6%-40%, potassium sulfate 0%-30%, calcium oxide 1%-5% and calcium carbonate 1%-15%.
2. prevention according to claim 2 improve the alkaline composite fertilizer of soil acidification, it is characterized in that, the particle be made up of calcium oxide, calcium carbonate, urea and potassium sulfate and diammonium phosphate particle mix.
3. prevent as claimed in claim 1 or 2 and improve the preparation method of the alkaline composite fertilizer of soil acidification; it is characterized in that; get calcium oxide, calcium carbonate, urea and potassium sulfate by proportioning and be broken for powdery; mix post-heating to enter roller pelletizer and carry out granulation, enter to mix after mixing tank by proportioning and diammonium phosphate particle after granulation completes and obtain finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410472389.XA CN104262048B (en) | 2014-09-17 | 2014-09-17 | A kind of alkaline complex fertilizer preventing and improve soil acidification and preparation method thereof |
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|---|---|---|---|
| CN201410472389.XA CN104262048B (en) | 2014-09-17 | 2014-09-17 | A kind of alkaline complex fertilizer preventing and improve soil acidification and preparation method thereof |
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|---|---|
| CN104262048A true CN104262048A (en) | 2015-01-07 |
| CN104262048B CN104262048B (en) | 2016-06-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722573A (en) * | 2015-02-02 | 2015-06-24 | 中国科学院沈阳应用生态研究所 | Method for rapidly improving pH value of acidified soil |
| CN108456097A (en) * | 2018-01-20 | 2018-08-28 | 斯科沃肥业（山东）有限公司 | A kind of alkaline fertilizer |
| CN111362764A (en) * | 2020-03-12 | 2020-07-03 | 河南霖牧农业技术有限公司 | Acidic soil improvement material and preparation method thereof |
| CN113149793A (en) * | 2021-04-23 | 2021-07-23 | 湖北富邦科技股份有限公司 | Neutral round particle potassium sulfate fertilizer and manufacturing method thereof |
Citations (7)
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| CN1634807A (en) * | 2003-12-29 | 2005-07-06 | 刘永定 | High efficiency alkaline organic phosphorus compound fertilizer for acidifying soil |
| CN102249815A (en) * | 2011-05-25 | 2011-11-23 | 福建省农业科学院土壤肥料研究所 | Special fertilizer for sour regurgitation field rice as well as preparation and use methods thereof |
| CN102336613A (en) * | 2010-07-26 | 2012-02-01 | 蒋俊明 | Ecological fertilizer special for bamboos |
| CN102617250A (en) * | 2012-04-12 | 2012-08-01 | 广西新方向化学工业有限公司 | Novel long-acting alkaline compound fertilizer and preparation method thereof |
| CN103183572A (en) * | 2013-03-20 | 2013-07-03 | 中国农业大学 | Fertilizer used for acidizing soil |
| CN103265350A (en) * | 2013-06-07 | 2013-08-28 | 山东省农业科学院高新技术研究中心 | Fertilizer specially used for acid soil peanuts |
| CN103444294A (en) * | 2013-09-10 | 2013-12-18 | 武汉市农业科学研究所 | Acid soil improvement method |
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2014
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Patent Citations (7)
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|---|---|---|---|---|
| CN1634807A (en) * | 2003-12-29 | 2005-07-06 | 刘永定 | High efficiency alkaline organic phosphorus compound fertilizer for acidifying soil |
| CN102336613A (en) * | 2010-07-26 | 2012-02-01 | 蒋俊明 | Ecological fertilizer special for bamboos |
| CN102249815A (en) * | 2011-05-25 | 2011-11-23 | 福建省农业科学院土壤肥料研究所 | Special fertilizer for sour regurgitation field rice as well as preparation and use methods thereof |
| CN102617250A (en) * | 2012-04-12 | 2012-08-01 | 广西新方向化学工业有限公司 | Novel long-acting alkaline compound fertilizer and preparation method thereof |
| CN103183572A (en) * | 2013-03-20 | 2013-07-03 | 中国农业大学 | Fertilizer used for acidizing soil |
| CN103265350A (en) * | 2013-06-07 | 2013-08-28 | 山东省农业科学院高新技术研究中心 | Fertilizer specially used for acid soil peanuts |
| CN103444294A (en) * | 2013-09-10 | 2013-12-18 | 武汉市农业科学研究所 | Acid soil improvement method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722573A (en) * | 2015-02-02 | 2015-06-24 | 中国科学院沈阳应用生态研究所 | Method for rapidly improving pH value of acidified soil |
| CN108456097A (en) * | 2018-01-20 | 2018-08-28 | 斯科沃肥业（山东）有限公司 | A kind of alkaline fertilizer |
| CN111362764A (en) * | 2020-03-12 | 2020-07-03 | 河南霖牧农业技术有限公司 | Acidic soil improvement material and preparation method thereof |
| CN113149793A (en) * | 2021-04-23 | 2021-07-23 | 湖北富邦科技股份有限公司 | Neutral round particle potassium sulfate fertilizer and manufacturing method thereof |
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| Publication number | Publication date |
|---|---|
| CN104262048B (en) | 2016-06-15 |
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Denomination of invention: An alkaline compound fertilizer for preventing and improving soil acidification and its preparation method Effective date of registration: 20230731 Granted publication date: 20160615 Pledgee: Bank of China Limited Huanggang branch Pledgor: HUBEI XIANGYUN (Group) CHEMICAL Co.,Ltd. Registration number: Y2023420000318 |