Special fertilizer for long-acting sustained release of potatoes and preparation method and application of special fertilizer

A special fertilizer and potato technology, which is applied in the field of potato long-acting slow-release special fertilizer and its preparation, can solve the problems of affecting food safety and human health, limiting potato yield and quality, and low utilization rate of potato fertilizer, so as to avoid soil nutrients The effect of enrichment, improving fertilizer utilization rate, and improving soil micro-ecological environment

Inactive Publication Date: 2019-02-22
STANLEY AGRI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, improper fertilization can easily lead to the following problems: the structure of soil aggregates is destroyed, resulting in soil compaction and a decrease in potato yield; excessive accumulation of certain elements in the soil and changes in soil physical and chemical properties and environmental pollution; low fertilizer utilization efficiency of potatoes, the average The utilization rate is only 30%-50%; a large number of beneficial bacteria in the soil and earthworms die, which seriously limits the improvement of the yield and quality of potatoes, and affects food safety and human health at the same time

Method used

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  • Special fertilizer for long-acting sustained release of potatoes and preparation method and application of special fertilizer
  • Special fertilizer for long-acting sustained release of potatoes and preparation method and application of special fertilizer
  • Special fertilizer for long-acting sustained release of potatoes and preparation method and application of special fertilizer

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The present embodiment provides a special fertilizer for potatoes, the formula is as follows:

[0048] 20 parts of urea, 33 parts of superphosphate, 45 parts of potassium sulfate, 0.4 parts of trace elements in EDTA chelation, 0.4 parts of humic acid, 0.05 parts of Trichoderma preparation, 0.2 parts of polyester polyol, 0.2 parts of toluene diisocyanate, 0.2 parts of clay part, 0.2 part of borax, 0.2 part of anti-caking agent, and 0.2 part of forming agent.

[0049] The present embodiment also provides the preparation method of above-mentioned special-purpose fertilizer, specifically comprises the following steps:

[0050] (1) Prepare urea, superphosphate, potassium sulfate, humic acid, trace elements in EDTA chelation, clay and borax in proportion, and stir evenly.

[0051] (2) Send the uniformly stirred materials into the granulator for granulation, and the temperature in the granulation furnace is controlled at 180-200°C. The granules made by the granulator are sen...

Embodiment 2

[0055] The present embodiment provides a special fertilizer for potatoes, the formula is as follows:

[0056] 20 parts of urea, 33 parts of calcium superphosphate, 45 parts of potassium sulfate, 0.4 parts of trace elements in EDTA chelation, 0.2 parts of polyester polyol, 0.2 parts of toluene diisocyanate, 0.2 parts of clay, 0.2 parts of borax, 0.2 parts of anti-caking agent , 0.2 parts of molding agent.

[0057] The present embodiment also provides the preparation method of above-mentioned special-purpose fertilizer, specifically comprises the following steps:

[0058] (1) Prepare urea, superphosphate, potassium sulfate, trace elements in EDTA chelation, clay and borax in proportion, and stir evenly.

[0059] (2) Send the uniformly stirred materials into the granulator for granulation, and the temperature in the granulation furnace is controlled at 180-200°C. Send the granules made by the granulator to the dryer, control the temperature within 120°C, dry the moisture contai...

Embodiment 3

[0063] The present embodiment provides a special fertilizer for potatoes, the formula is as follows:

[0064] 20 parts of urea, 33 parts of superphosphate, 45 parts of potassium sulfate, 0.4 parts of humic acid, 0.05 parts of Trichoderma preparation, 0.2 parts of polyester polyol, 0.2 parts of toluene diisocyanate, 0.2 parts of clay, 0.2 parts of borax, anti-caking agent 0.2 parts, 0.2 parts of forming agent.

[0065] The present embodiment also provides the preparation method of above-mentioned special-purpose fertilizer, specifically comprises the following steps:

[0066] (1) Prepare urea, superphosphate, potassium sulfate, humic acid, clay and borax according to a certain ratio, and stir evenly.

[0067] (2) Send the uniformly stirred materials into the granulator for granulation, and the temperature in the granulation furnace is controlled at 180-200°C. The granules made by the granulator are sent to the dryer, the temperature is controlled within 120°C, the moisture co...

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Abstract

The invention relates to special fertilizer for long-acting sustained release of potatoes and a preparation method and application of the special fertilizer. The special fertilizer provided by the invention is prepared from the following components in parts by weight: 40-90 parts of base fertilizer, 0.1-1 part of a medium trace element, 0.2-3 parts of sustained release coating liquid, and 0.1-1 part of a biostimulant, wherein the sustained release coating liquid is prepared from isocyanate and polyol, and the biostimulant is prepared from humic acid and a Trichoderma preparation. The potato special fertilizer provided by the invention has the a lasting fertilizer effect and the an effect of improving the soil environment, soil fertility can be maintained for a long time, the agriculture characters such as the plant height and the tuberization rate of the potatoes are improved, the potato yield and commodity rate are increased, and then economic benefits of potato planting are significantly increased; the special fertilizer is used by being matched with a seed and fertilizer simultaneous seeding technology, and thus the problems such as soil nutrient enrichment and soil hardening caused by multiple-time fertilization and excessive fertilization are avoided; and meanwhile, the labor cost is greatly lowered, the production efficiency is improved, and the special fertilizer is suitable for being widely applied and popularized.

Description

technical field [0001] The invention relates to the technical field of soil fertilizers, in particular to a special fertilizer for long-acting slow-release of potatoes and its preparation method and application. Background technique [0002] Potatoes (also known as yam eggs, ground eggs, artichokes, taro, potatoes, etc.), are a chlorine-avoiding, potassium-loving, high-yielding crop. Because of their high nutritional value, strong adaptability, and large yield, they have become the third most important crop in the world. Food crops, second only to wheat and corn. China has already launched the strategy of turning potatoes into a staple food, promoting the processing of potatoes into staple foods such as steamed bread, noodles, and rice noodles. Potatoes have become China's fourth largest food crop after wheat, corn, and rice. The output of traditional food crops has been increasing for many years, and there is limited room for further increase in production. The potato mark...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04A01C21/00A01G22/25C05G3/80
CPCA01C21/005A01G22/25C05B1/02C05G3/00C05G3/20C05G5/37C05G3/80C05D1/02C05D5/00C05D9/00C05C9/00C05D9/02C05F11/02C05F11/08
Inventor 高进华张淑敏解学仕杨恒哲赵文王婷婷李元峰周丽
Owner STANLEY AGRI GRP CO LTD
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