Long effect slow release compound mixed fertilizer

A slow-release compound fertilizer, long-acting technology, applied in urea compound fertilizer, nitrogen fertilizer, potash fertilizer and other directions, can solve the problems of high cost, difficult promotion, inability to meet fertilizer and other problems, achieve long fertilizer effect period, increase yield, reduce nitrous The effect of the amount of nitrogen formed

Inactive Publication Date: 2007-04-11
LIAONING LYUYUAN BIOLOGICAL AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, foreign film-coated long-acting compound fertilizers have the problems of high cost and difficult popularization; although domestic similar products have different formulations, they all have low production costs, are easy to use, and can save farmers from topdressing fertilizers. The hard work and other characteristics of the time, but it cannot meet the fertilizer needs of various crop varieties that grow under different conditions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] First, crush 1.3 kg of dicyandiamide, 1.5 kg of rare earth nitrate, 1 kg of drought-resistant and water-retaining agent, 0.8 kg of phosphorus and potassium activator, and 1.4 kg of magnesium sulfate to 120 mesh. Add 550 kg of large granular urea, 204 kg of monoammonium phosphate (grain), 150 kg of potassium chloride (grain), and 90 kg of humic acid (grain), mix and stir evenly, and make the powder form under normal temperature and pressure. The additives are adsorbed and wrapped on the surface of the granular fertilizer, which is the finished product.

[0022] When in use, the base fertilizer for corn and sorghum: the dosage is 35-40 kg / mu, applied on the side, the bottom or in between, with an interval of 8-10 cm; the base fertilizer used for rice: the dosage is 35-40 kg / mu, turn over Sprinkle before the field, or before harrowing; the effect is: no topdressing, 10-15% increase in yield when the living stems are mature, well-developed root system, 50% more than convent...

Embodiment 2

[0024] First crush 1.2 kg of dicyandiamide, 1.3 kg of rare earth nitrate, 1.3 kg of drought-resistant water-retaining agent, 1 kg of phosphorus and potassium activator, and 1.2 kg of magnesium sulfate to 120 mesh, put them into a conventional mixing tank and mix them evenly, and then put them into a large In the mixture of 560 kg of granular urea, 200 kg of monoammonium phosphate (granule), 145 kg of potassium chloride (granule), and 89 kg of humic acid (granule), mix and stir evenly, and make the powdery additive under normal temperature and pressure. Adsorbed and wrapped on the surface of the granular fertilizer, it is the finished product.

[0025] Usage and effect are basically the same as in Example 1.

Embodiment 3

[0027] First, crush 1 kg of dicyandiamide, 1 kg of rare earth nitrate, 2 kg of drought-resistant water-retaining agent, 1 kg of phosphorus and potassium activator, and 5 kg of magnesium sulfate to 120 mesh, put them into a conventional mixing tank and mix them evenly, and then put them into a large In the mixture of 550 kg of granular urea, 205 kg of monoammonium phosphate (granule), 150 kg of potassium chloride (granule), and 85 kg of humic acid (granule), mix and stir evenly, and make the powdery additive under normal temperature and pressure. Adsorbed and wrapped on the surface of the granular fertilizer, it is the finished product.

[0028] Usage and effect are basically the same as in Example 1.

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PUM

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Abstract

The long acting slow release re-mixed fertilizer consists of dicyandiamide 0.8-1.5 weight portions, RE nitrate 0.8-1.5 weight portions, water retaining agent 1-2 weight portions, phosphorus and potassium activating agent 0.8-1.5 weight portions, magnesium sulfate 1-5 weight portions, granular urea 500-600 weight portions, granular monoammonium phosphate 200-220 weight portions, granular potassium chloride 140-180 weight portions, and granular humic acid 80-100 weight portions. Compared with available technology, the present invention has the features of reasonable nutrient components, fertilizer providing rate fitting crop growth, long fertilizer effect, etc.

Description

technical field [0001] The invention relates to a fertilizer for crops, in particular to a long-acting slow-release compound fertilizer, which is a supplement to existing compound fertilizer varieties and belongs to the preparation technology of agricultural fertilizers. Background technique [0002] At present, there are many varieties of long-acting slow-release compound fertilizers on the market. There are imported foreign coated long-acting compound fertilizers, and more are domestic long-acting slow-release compound fertilizers. For example, the Chinese invention patent application with the publication number CN1371891 "A Slow-release Compound Fertilizer and Its Production Method" , is to make N, P, K and medium and trace element fertilizers into slow-release fertilizers with different slow-release speeds, and then compare them with unwrapped N, P, and K granular fertilizers according to the needs of different plants at different times. It is formulated to produce a ki...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00C05C7/00C05C5/00C05C9/00C05D5/00C05D1/02C05B7/00C05F11/02
Inventor 刘长顺刘明辉刘明军
Owner LIAONING LYUYUAN BIOLOGICAL AGRI TECH
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