CN102653483B - Controlled-release nitrogen potash fertilizer and preparation method thereof - Google Patents
Controlled-release nitrogen potash fertilizer and preparation method thereof Download PDFInfo
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- CN102653483B CN102653483B CN201110048162.9A CN201110048162A CN102653483B CN 102653483 B CN102653483 B CN 102653483B CN 201110048162 A CN201110048162 A CN 201110048162A CN 102653483 B CN102653483 B CN 102653483B
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Abstract
The invention relates to a controlled-release nitrogen potash fertilizer and a preparation method thereof. Raw materials comprise: granular urea, powdery potassium humate, and a granular monosodium glutamate leftover fertilizer. The organic-inorganic controlled-release fertilizer produced by the method is a novel controlled-release fertilizer which can control the release speed of nitrogenous fertilizer nutrients. The preparation method of the controlled-release nitrogen potash fertilizer comprises treating granular urea by powdery potassium humate through a coating process, and mixing with monosodium glutamate leftover granules according to a certain proportion. Because of the obstruction of a coating layer of the coated granular urea, inhibition effect is generated on the activity of soil urease, and thus the decomposition and release speed of the nitrogenous fertilizer nutrients in the fertilizer is reduced significantly. Meanwhile, the volatilization, leaching, and anti-digestion effect of nitrogen elements in the fertilizer are reduced effectively; therefore, the utilization rate of nitrogen elements in the fertilizer is improved, and the potassium element supply in the middle-later period of plant growth is supplemented appropriately. A lot of test results also demonstrate that empty potassium humate shells after nutrient release have a strong water retention function, which can effectively relieve drought.
Description
Technical field
The present invention relates to a kind of controlled release nitrogen potash fertilizer and preparation method thereof.
Background technology
Agriculture production constantly increases the demand of fertilizer, and because fertilizer price goes up and uses chemical fertilizer to cause the reasons such as environment and pollution of agricultural products, people start to pay attention to the organic and inorganic research and development that cooperatively interact and have controlled-release effect fertilizer.So both the deficiency of all kinds of straight fertilizers can be made up, the novel specific controlled release organic and inorganic fertilizer of fertilizer efficiency equilibrium can be produced again.
Summary of the invention
The first object of the present invention is to provide a kind of containing organic controlled release nitrogen potash fertilizer, and the second object of the present invention is to provide this controlled release nitrogen potash fertilizer preparation method.
Controlled release nitrogen potash fertilizer composition in the present invention comprises organic moiety and inorganic part, wherein, organic moiety and inorganic part mass ratio are 7: 3, and described organic moiety is monosodium glutamate tankage granular fertilizers, described inorganic part is potassium humate coated urea, its fill a prescription (unit kilogram):
A monosodium glutamate tankage particle: (nitrogen: 16% potassium 2% organic matter: 20%) 700 kilograms
B potassium humate coated urea: (nitrogen: 40% potassium 2% organic matter: 6%) 300 kilograms
The preparation method of the controlled release nitrogen potash fertilizer in the present invention:
Controlled release nitrogen potash fertilizer preparation method comprises coating operation and the fertile operation of blending monosodium glutamate tankage of potassium humate and granular urea:
A pulverizes: it is standby that potassium humate is crushed to 60-80 order;
B batching metering: potassium humate and urea through being metered into next process, are prepared against coating by formula rate;
C prepares coating agent: by carboxymethyl cellulose: xylogen: it is standby that vegetables oil is uniformly mixed to form tackiness agent according to ratio of weight and number at 1: 1: 1;
D coating: in proportion potassium humate is sent into carrying out coating with granular urea in the granulating disc of tackiness agent shower nozzle;
E is dried: potassium humate coated carbamide is by sending into drying machine in batches, and hot blast temperature is successively warming up to 120 ℃ by 80 ℃ successively, and granule materials water ratio is dried to 5%;
F blending: monosodium glutamate tankage granular fertilizer and potassium humate coated carbamide are carried out to even blending by weight metering in 7: 3 by Automatic batching equipment.
Controlled release nitrogen potash fertilizer nutrient content (weight) wherein: controlled release nitrogen potash fertilizer total nutrient: 25%.Wherein nitrogen content 23%, potassium content 2%, organic 15%.
The feature of controlled release nitrogen potash fertilizer in the present invention:
(1) monosodium glutamate tankage particle provides required available nutrient for plant-growth;
(2) potassium humate coated carbamide provides slow nutrient, and evaporation, leaching loss is few, and the utilization ratio of Nitrogen element improves, again the suitable deficiency of having supplemented the potassium element supply of plant-growth middle and later periods;
(3) have low salt index, excessive using yet can " do not burnt seedling " accidentally;
(4) identical, cost-saving with common urea usage, consumption;
(5) be applicable to dissimilar soil and plant, being rich in organic matter can effectively keep soil from packing together;
(6) the potassium humate ghost capable of storing water discharging after nutrient has drought-enduring function;
(7) due to the obstruct of the granular urea coating layer after coating to soil
ureaenzymic activity produces restraining effect, and Nitrogen fertilizer nutrient solution release rate is obviously reduced.
Embodiment
Controlled release nitrogen potash fertilizer composition in the present invention comprises organic moiety and inorganic part, wherein, organic moiety and inorganic part mass ratio are 7: 3, and described organic moiety is monosodium glutamate tankage granular fertilizers, described inorganic part is potassium humate coated urea, its fill a prescription (unit kilogram):
A monosodium glutamate tankage particle: (nitrogen: 16% potassium 2% organic matter: 20%) 700 kilograms
B potassium humate coated urea: (nitrogen: 40% potassium 2% organic matter: 6%) 300 kilograms
The preparation method of the controlled release nitrogen potash fertilizer in the present invention:
Controlled release nitrogen potash fertilizer preparation method comprises coating operation and the fertile operation of blending monosodium glutamate tankage of potassium humate and granular urea:
A pulverizes: it is standby that potassium humate is crushed to 60-80 order;
B batching metering: potassium humate and urea through being metered into next process, are prepared against coating by formula rate;
C prepares coating agent: by carboxymethyl cellulose: xylogen: it is standby that vegetables oil is uniformly mixed to form tackiness agent according to ratio of weight and number at 1: 1: 1;
D coating: in proportion potassium humate is sent into carrying out coating with granular urea in the granulating disc of tackiness agent shower nozzle;
E is dried: potassium humate coated carbamide is by sending into drying machine in batches, and hot blast temperature is successively warming up to 120 ℃ by 80 ℃ successively, and granule materials water ratio is dried to 5%;
F blending: monosodium glutamate tankage granular fertilizer and potassium humate coated carbamide are carried out to even blending by weight metering in 7: 3 by Automatic batching equipment.
Controlled release nitrogen potash fertilizer nutrient content (weight) wherein: controlled release nitrogen potash fertilizer total nutrient: 25%.Wherein nitrogen content 23%, potassium content 2%, organic 15%.
The feature of controlled release nitrogen potash fertilizer in the present invention:
(1) monosodium glutamate tankage particle provides required available nutrient for plant-growth;
(2) potassium humate coated carbamide provides slow nutrient, and evaporation, leaching loss is few, and the utilization ratio of Nitrogen element improves, again the suitable deficiency of having supplemented the potassium element supply of plant-growth middle and later periods;
(3) have low salt index, excessive using yet can " do not burnt seedling " accidentally;
(4) identical, cost-saving with common urea usage, consumption;
(5) be applicable to dissimilar soil and plant, being rich in organic matter can effectively keep soil from packing together;
(6) the potassium humate ghost capable of storing water discharging after nutrient has drought-enduring function;
(7) due to the obstruct of the granular urea coating layer after coating to soil
ureaenzymic activity produces restraining effect, and Nitrogen fertilizer nutrient solution release rate is obviously reduced.
Claims (1)
1. a potassium humate controlled release nitrogen potash fertilizer, described controlled release nitrogen potash fertilizer composition comprises organic moiety and inorganic part, and wherein, organic moiety and inorganic part mass ratio are 7: 3, described organic moiety is monosodium glutamate tankage granular fertilizers, and described inorganic part is potassium humate coated urea; Controlled release nitrogen potash fertilizer total nutrient is 25% by weight, wherein nitrogen content 23%, potassium content 2%, organic 15%;
The preparation method of described potassium humate controlled release nitrogen potash fertilizer, comprises the fertile operation of the coating operation of potassium humate and granular urea and blending monosodium glutamate tankage, and concrete steps are as follows:
A pulverizes: it is standby that potassium humate is crushed to 60～80 orders;
B batching metering: potassium humate and urea through being metered into next process, are prepared against coating by formula rate;
C prepares coating agent: the carboxymethyl cellulose that process is hydrolyzed: xylogen: it is standby that vegetables oil is uniformly mixed to form tackiness agent according to ratio of weight and number at 1: 1: 1;
D coating: in proportion potassium humate is sent into carrying out coating with granular urea in the granulating disc of tackiness agent shower nozzle;
E is dried: potassium humate coated carbamide is by sending into drying machine in batches, and hot blast temperature is successively warming up to 120 ℃ by 80 ℃ successively, and granule materials water ratio is dried to 5%;
F blending: monosodium glutamate tankage granular fertilizer and potassium humate coated carbamide are carried out to even blending by weight metering in 7: 3 by Automatic batching equipment, make the controlled release nitrogen potash fertilizer that comprises potassium humate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110048162.9A CN102653483B (en) | 2011-03-01 | 2011-03-01 | Controlled-release nitrogen potash fertilizer and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110048162.9A CN102653483B (en) | 2011-03-01 | 2011-03-01 | Controlled-release nitrogen potash fertilizer and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102653483A CN102653483A (en) | 2012-09-05 |
| CN102653483B true CN102653483B (en) | 2014-02-26 |
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| CN201110048162.9A Active CN102653483B (en) | 2011-03-01 | 2011-03-01 | Controlled-release nitrogen potash fertilizer and preparation method thereof |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924168B (en) * | 2012-10-30 | 2014-01-15 | 安徽省文胜肥业有限责任公司 | Humic acid silicon-clad nitrogen fertilizer and preparation method thereof |
| CN105175091A (en) * | 2015-07-20 | 2015-12-23 | 季保德 | Preparation method of spherical granular potash fertilizer |
| CN106673770A (en) * | 2017-03-13 | 2017-05-17 | 湖北省农业科学院植保土肥研究所 | Special fertilizer with nitrogen and potassium controlled release function for rice and application of fertilizer |
| CN109456099A (en) * | 2017-09-06 | 2019-03-12 | 天津始帝丰科技有限公司 | A kind of dual control intelligence organic fertilizer |
| CN107652134A (en) * | 2017-10-30 | 2018-02-02 | 宁夏天瑞产业集团现代农业有限公司 | A kind of sustained-controll-release fertiliser coating agent and preparation method thereof |
| CN112279741A (en) * | 2020-11-12 | 2021-01-29 | 巨野茂施农业科技有限公司 | Phosphorus-element-free controlled-release bulk blend fertilizer special for corn |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041600A (en) * | 2007-03-16 | 2007-09-26 | 阴高鹏 | Humic acid composite material and preparation method thereof |
| CN101805227A (en) * | 2010-04-16 | 2010-08-18 | 范友 | Slow control release biological inorganic and organic mixed fertilizer |
| CN101885646A (en) * | 2009-05-14 | 2010-11-17 | 张希纯 | Biological slow-released urea and preparation method thereof |
| CN101967071A (en) * | 2010-10-20 | 2011-02-09 | 南京农业大学 | Salt-restraining special fertilizer for seashore solonchak rapes and production process thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6620611B2 (en) * | 2001-01-06 | 2003-09-16 | Geovation Technologies, Inc. | Solid-chemical composition for sustained release of organic substrates and complex inorganic phosphates for bioremediation |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041600A (en) * | 2007-03-16 | 2007-09-26 | 阴高鹏 | Humic acid composite material and preparation method thereof |
| CN101885646A (en) * | 2009-05-14 | 2010-11-17 | 张希纯 | Biological slow-released urea and preparation method thereof |
| CN101805227A (en) * | 2010-04-16 | 2010-08-18 | 范友 | Slow control release biological inorganic and organic mixed fertilizer |
| CN101967071A (en) * | 2010-10-20 | 2011-02-09 | 南京农业大学 | Salt-restraining special fertilizer for seashore solonchak rapes and production process thereof |
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| CN102653483A (en) | 2012-09-05 |
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