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Solid-grain selesium fertilizer and preparing method

A technology of solid particles and a manufacturing method, which can be applied to fertilizer forms, fertilization devices, fertilizer mixtures, etc., can solve the problems of unsatisfactory effect of slow application, complex production process, poor versatility, etc.

Active Publication Date: 2007-08-29
沃达农业科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of fertilizer is mixed with a carrier and a variety of organic fertilizers. The production process is relatively complicated. The nutrients of the fertilizer are fixed, and the effect of slow application is not ideal. It has poor versatility in the process of using different crops.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Taking pumice and bentonite as raw materials, pulverizing pumice through a 0.5mm sieve, and pulverizing bentonite through a 0.15mm sieve, in parts by weight, fully mixing 24.5 parts of pumice and 73.5 parts of bentonite to obtain mixture A for subsequent use;

[0021] (2) Dissolve 2 parts of sodium selenite in 20 parts of water at normal temperature, and prepare solution B for subsequent use;

[0022] (3) Spray solution B evenly onto mixture A for granulation, and then select 2mm-4mm granular selenium fertilizer after drying, cooling and sieving.

[0023] Apply 1KG granular selenium fertilizer per mu. The experimental results show that the selenium content of barley grains without this kind of selenium fertilizer is 0.053 mg / kg, while the selenium content of barley grains with this selenium fertilizer is 0.36 mg / kg.

Embodiment 2

[0025] (1) Using pumice and bentonite as raw materials, pulverize the pumice and pass through a 0.3mm sieve, and pulverize the bentonite through a 0.13mm sieve, and mix 33 parts of pumice and 66 parts of bentonite in parts by weight to obtain mixture A for subsequent use;

[0026] (2) Dissolve 1 part of sodium selenite in 25 parts of water at normal temperature, and prepare solution B for subsequent use;

[0027] (3) Spray the solution B evenly on the mixture A for granulation, and then select 2mm-4mm granular selenium fertilizer after drying, cooling and sieving.

[0028] Apply 1KG granular selenium fertilizer per mu. The experimental results show that the selenium content of wheat grains without this selenium fertilizer is 0.062 mg / kg, while the selenium content of barley grains with this selenium fertilizer is 0.18 mg / kg.

Embodiment 3

[0030] 1) Using pumice stone and bentonite as raw materials, pulverize the pumice stone through a 0.7mm sieve, and crush the bentonite clay through a 0.18mm sieve. In parts by weight, 19 parts of pumice stone and 80 parts of bentonite are fully mixed to obtain mixture A for later use;

[0031] (2) Dissolve 0.5 part of sodium selenite and 0.5 part of sodium selenate in 22 parts of water, and prepare solution B for subsequent use;

[0032] (3) Put the mixture A in a disc granulator, spray the solution B evenly on the mixture A for granulation, then dry, cool and sieve to select 2mm-4mm granular selenium fertilizer.

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PUM

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Abstract

The invention relates to a solid particle selenium fertilizer and the manufacture method. It includes 19-33 portions pumice, 65-80 portions of bentonite, and 0.5-2 portions of selenate or selenite. The method includes the following steps: crashing and mixing raw materials, dissolving selenate or selenite into 20-30 portions water, spraying, drying and cooling, filtering to gain 2-4mm particles as selenium fertilizer. The invention has the advantages of good versatility, short effecting time, abundant using efficiency, cheap raw material, etc.

Description

Technical field: [0001] The invention relates to a solid granular selenium fertilizer and a manufacturing method thereof. Background technique: [0002] Selenium is an essential trace element for animals and humans. However, the distribution of selenium resources in nature is extremely unbalanced. There are 22 provinces and regions in my country, and about 2 / 3 of the population has insufficient selenium intake to varying degrees. People supplement the human body through diet. The required selenium, selenium-rich food has become the key health food that people need. The use of selenium-rich fertilizers for crops can increase the selenium content of their products, so in recent years, many selenium-rich trace element fertilizers have appeared on the market, such as the application number 02113524. Soaking, dilute acid neutralization, enzyme fermentation and other processes are used to prepare selenium-enriched compound trace element fertilizers. In the preparation process of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05D9/00C05G5/00
Inventor 冶军褚贵新侯振安
Owner 沃达农业科技股份有限公司
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