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

A corn-specific fertilizer and straw technology, applied in fertilization methods, botanical equipment and methods, applications, etc., can solve the problems of neglecting the growth of corn, soil types, farming methods, and inability to meet the needs of production, and achieve significant increases in production and efficiency. , the ratio is reasonable, the preparation process is simple

Active Publication Date: 2011-04-27
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] Example 1: A special fertilizer for corn, using urea, monoammonium phosphate, potassium chloride and weathered coal as basic raw materials, granulation additives are fertilizer adhesives and activation additives, and the mass parts of each component are: 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; the fertilizer adhesive is activated clay, and the activation additive is potassium hydroxide .

[0031] The preparation method is as follows:

[0032] Ingredients 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 material is dried, it is pulverized to make the particle diameter of each raw material component 0.1-0.3mm. The dried and crushed raw materials are weighed and mixed in prop...

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 additives; 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 basal fertilizer application on plots with medium foundation soil strength, and the application rate is 1500kg / hm 2 , 18kg of urea can be applied during the big bell mouth period. The yield is about 11% higher than that of farmers who are used to fertilizing.

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 additives; 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 basal fertilizer application on plots with higher basic soil fertility, the application rate is 1500kg / hm 2 , 18kg of urea can be applied during the big bell mouth period. Compared with farmers' habitual fertilization method, the yield is 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 manufacturing, in particular to a formula of a special fertilizer for corn under the condition of returning all straws to the field in the Huanghuai Plain and a preparation method thereof. 2. Background technology [0002] In recent years, the focus of research, 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 due to the richer types of nutrient elements, more reasonable ratio and more convenient application. The sown area and total output of maize in my country rank third only after rice and wheat. Corn is not only a food crop, but also an economic and feed product. It is also an important raw material for hundreds of industrial products and occupies an extremely important position in the national economy. Therefore, the dev...

Claims

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Application Information

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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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