Whole nutrient solid fertilizer for drip irrigation and its prepn

A solid fertilizer, non-clogging technology, applied in the direction of inorganic fertilizers, fertilizer forms, ammonium salt fertilizers, etc., can solve the problems of difficulty in large-scale promotion of drip irrigation technology, low plant absorption and utilization rate, high production cost of liquid fertilizers, etc., to achieve easy The effects of large-scale promotion and application, saving transportation costs, and saving manpower and material resources

Inactive Publication Date: 2007-02-14
INST OF SOIL & FERTILIZER SHANDONG ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the fertilizers used in agricultural drip irrigation are conventional solid fertilizers and liquid fertilizer products. The production cost of liquid fertilizers is high, the volume is large, the transportation is difficult, and it is difficult to promote in large areas.
Conventional solid products have poor solubility and are prone to clogging during irrigation
There are three outstanding problems in the actual production and application of agricultural drip irrigation technology. First, the system blockage during the drip irrigation process. The incomplete dissolution of conventional drip irrigation fertilizers and the long-term deposition of minerals in the drip irrigation water lead to blockage of the drip holes, resulting in the amount of water used in the drip irrigation process. and fertilizers are seriously uneven, which directly affects normal agricultural production when serious; two, drip irrigation technology is difficult to popularize in a large area, due to the lack of high-tech drip irrigation special fertilizers in the past, conventional fertilizers are used for drip irrigation to bring a lot of inconvenience to normal agricultural production, directly restricting Three, the effect of fertilizer application is not significant, the solubility of conventional fertilizer is poor, the nutrients are not complete, the ratio is unreasonable, the absorption and utilization rate of the plants are not high, and the effect is not significant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: the proportioning by weight of urea, monoammonium phosphate and potassium sulfate is 40:20:32; Medium and trace elements are selected from 3 parts of calcium nitrate, 1 part of magnesium sulfate, 1 part of ferrous sulfate and 1 part of boric acid, which The weight accounts for 6% of the total weight of solid fertilizer. The solubilizer is a 1:1 weight mixture of ferrous edetate and citric acid, and its weight is 2% of the total weight of the solid fertilizer. Separately crush urea, monoammonium phosphate, and potassium sulfate into powders above 60 meshes, mix them in proportion, and then add calcium nitrate, magnesium sulfate, ferrous sulfate, boric acid, and ferrous ethylenediaminetetraacetate in portions The mixture of salt and citric acid is uniformly mixed and granulated to obtain a full-nutrient solid fertilizer for non-clogging drip irrigation.

Embodiment 2

[0026] Embodiment 2: the proportioning by weight of urea, monoammonium phosphate and potassium sulfate is 40:20:30; Medium and trace elements are selected from 3 parts of calcium nitrate, 1 part of magnesium sulfate, 1 part of ferrous sulfate, 1 part of manganese sulfate, 1 part of zinc sulfate and 1 part of boric acid, its weight accounts for 8% of the total weight of solid fertilizer. The solubilizer is a 1:1 weight mixture of ferrous edetate and citric acid, and its weight is 2% of the total weight of the solid fertilizer. The preparation method is the same as in Example 1.

Embodiment 3

[0027] Embodiment 3: the proportioning by weight of urea, monoammonium phosphate and potassium sulfate is 34:25:30; Medium and trace elements are selected from 3 parts of calcium nitrate, 1 part of magnesium sulfate, 1 part of manganese sulfate, 1 part of copper sulfate, sulfuric acid 1 part of zinc, 1 part of ammonium molybdate and 1 part of boric acid, the weight of which accounts for 9% of the total weight of the solid fertilizer. The solubilizer is a 1:1 weight mixture of ferrous edetate and citric acid, and its weight is 2% of the total weight of the solid fertilizer. The preparation method is the same as in Example 1.

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PUM

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Abstract

The present invention belongs to the field of solid fertilizer technology, and the no-jamming whole nutrient solid fertilizer for drip irrigation is one new kind of fertilizer for drip irrigation and including nitrogen fertilizer, phosphate fertilizer, potash fertilizer, dissolution promoter and trace elements. The no-jamming whole nutrient solid fertilizer for drip irrigation is prepared through mixing nitrogen fertilizer, phosphate fertilizer, potash fertilizer, dissolution promoter and trace elements and pelletizing the mixture. The no-jamming whole nutrient solid fertilizer of the present invention has comprehensive and balanced nutrients and no jamming in drop irrigation application, and can raise the absorption of plant on nutrients, raise fertilizer utilization rate, increase crop yield, raise crop quality and lower agricultural production cost.

Description

(1) Technical field [0001] The invention relates to a solid fertilizer, in particular to a full-nutrient solid fertilizer for non-clogging drip irrigation and a preparation method thereof. (2) Background technology [0002] In recent years, with the development of my country's "two high and one excellent" agriculture and the protected cultivation of protected agriculture has developed rapidly. At present, in the production of protected areas, the method of irrigation and fertilization of vegetables in greenhouses is mostly used in irrigation and fertilization. method, not only caused a lot of waste of fertilizers and water resources, but also caused soil pollution, acidification and hardening, deterioration of physical and chemical properties, reduction of fertilizer utilization rate; low vegetable yield, poor quality, etc. In view of the shortage of water resources and energy in our country and the lack of economic strength, how to vigorously research and promote drip irriga...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00C05G5/00C05D9/02C05D1/02C05C3/00C05C9/00C05B7/00
Inventor 张文君刘兆辉江丽华郑福丽王梅林海涛
Owner INST OF SOIL & FERTILIZER SHANDONG ACAD OF AGRI SCI
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