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Corn special fertilizer in case of returning all straws to field in Huanghuai Plain and preparation method thereof

A special fertilizer and straw technology for corn, which is applied in fertilization methods, botanical equipment and methods, applications, etc., can solve the problems that cannot meet the needs of production, ignore the soil type and farming method of corn growth, and achieve a significant increase in production and efficiency , reasonable ratio and low cost

Active Publication Date: 2013-01-23
SHANDONG AGRI SUSTAINABLE DEV INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the special fertilizer for corn in my country only takes the crop type as the main reference factor, ignoring the important factors such as the soil type and farming method for corn growth.
The Huanghuai Plain covers an area of ​​6,000 square kilometers. It is a key agricultural production area in my country to promote straw returning to the field and promote the comprehensive utilization of farmland straw resources. The traditional fertilization mode can no longer meet the current needs of corn production in the Huanghuai Plain and needs to be improved urgently.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: a kind of special fertilizer for corn, with urea, monoammonium phosphate, potassium chloride and weathered coal as basic raw materials, granulation additive is fertilizer adhesive and activation additive, the mass parts of each component is: 35 parts of urea , 15 parts of monoammonium phosphate, 22 parts of potassium chloride, 23 parts of weathered coal, 4 parts of fertilizer adhesive and 1 part of activation additive; described fertilizer adhesive is activated clay, and described activation additive is potassium hydroxide .

[0031] The preparation method is as follows:

[0032] Batching and granulation: drying the raw materials of urea, monoammonium phosphate and potassium chloride to a water content of ≤2wt%, and drying the weathered coal raw materials to a water content of ≤20wt%. After the raw materials are dried, they are pulverized so that the particle diameter of each raw material component is 0.1-0.3 mm. The dried and pulverized raw materials ar...

Embodiment 2

[0039] A special fertilizer for corn, the mass parts of each component are: 20 parts of urea, 15 parts of monoammonium phosphate, 22 parts of potassium chloride, 38 parts of weathered coal, 3.5 parts of fertilizer adhesive and 1.5 parts of activation additive; The fertilizer adhesive is activated clay, and the activation additive is potassium hydroxide.

[0040] The preparation method is the same as in Example 1. The nutrient content of special fertilizer for corn is N:P 2 o 5 : K 2 O=10:6:12.

[0041] This special fertilizer for corn is suitable for use as a base fertilizer in land with medium soil fertility, and the application rate is 1500kg / hm 2 , 18kg of urea can be added during the big bell mouth period. Compared with farmers' customary fertilization method, the yield is increased by about 11%.

Embodiment 3

[0043] A special fertilizer for corn, the mass parts of each component are: 15 parts of urea, 17 parts of monoammonium phosphate, 24 parts of potassium chloride, 39 parts of weathered coal, 3 parts of fertilizer adhesive and 2 parts of activation additive; The fertilizer adhesive is activated clay, and the activation additive is potassium hydroxide.

[0044] The preparation method is the same as in Example 1. The nutrient content of special fertilizer for corn is N:P 2 o 5 : K 2 O=8:7:13.

[0045] This special fertilizer for corn is suitable for use as a base fertilizer in plots with high basic soil fertility, and the application rate is 1500kg / hm 2 , 18kg of urea can be added during the big bell mouth period. Compared with farmers' customary fertilization method, the yield can be increased by about 8%.

[0046] Field experiment results:

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Abstract

The invention discloses a corn special fertilizer in case of returning all straws to field in Huanghuai Plain and a preparation method thereof. The raw materials of the corn special fertilizer are as follows in parts by mass: 15-35 parts of urea, 15-17 parts of monoammonium phosphate, 22-24 parts of potassium chloride, 23-39 parts of weathered coal and 5 parts of granulating additives; and the granulating additives are formed by fertilizer adhesives and activated additives with the mass ratio of (3-4):(1-2). The corn special fertilizer is prepared through disc granulating by adding granulating additives after the raw materials are dried, crushed and mixed. The corn special fertilizer has the characteristics that the production process is simple, the cost is low, no environment pollution exists, the utilization rate is high and the increasing of capability of efficiency is realized, and the fertilizer and the method are suitable for demands of corn production in case of returning all straws to field in Huanghuai Plain.

Description

1. Technical field [0001] The invention relates to the field of fertilizer production, in particular to the formulation and preparation method of special fertilizer for corn under the condition of full straw returning to the field in Huanghuai Plain. 2. Background technology [0002] In recent years, the focus of research and development and application of new fertilizers at home and abroad has shifted from simple fertilizers to compound fertilizers. As a kind of compound fertilizer, special fertilizer for crops is very popular in the fertilizer market because of its richer types of nutrient elements, more reasonable ratio and more convenient application. The sown area and total output of corn in my country ranks third after rice and wheat. Corn is not only a food crop, but also an economic and feed crop. It is also an important raw material for hundreds of industrial products and occupies an extremely important position in the national economy. Therefore, research and dev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00A01G1/00A01C21/00
Inventor 隋学艳张晓冬朱振林袁奎明王勇孙肖青郭洪海丁汉凤
Owner SHANDONG AGRI SUSTAINABLE DEV INST
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