Special corn fertilizer with slow-release effect

A corn-specific fertilizer and slow-release technology, applied in the application, nitrogen fertilizer, potassium fertilizer and other directions, can solve the problems of large differences in climatic conditions and soil conditions, unreasonable combination of nitrogen, phosphorus and potassium fertilizers, and complicated fertilization methods for corn, and achieve a significant increase in yield. , reduce the number of top dressing and ensure the effect of nutrient supply

Inactive Publication Date: 2018-02-23
JIANGSU ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the method of fertilizing corn is complicated, requiring three times of fertilization, which increases labor costs
In addition, my country has a wide range of corn planting, and there are great differences in climate and soil conditions, resulting in many problems in corn fertilization, especially the unreasonable combination of nitrogen, phosphorus and potassium fertilizers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Fertilizer raw materials for corn: 41.2kg oxamide, 12.2kg urea, 23.9kg phosphate fertilizer, 17kg potassium fertilizer, 1.5kg zinc fertilizer, 4.2kg bentonite;

[0018] Described phosphate fertilizer is diammonium phosphate, nitrogen N content is 18%, phosphorus P 2 o 5 The content is 46%, provided by the Phosphate Fertilizer Plant of Nanjing Chemical Industry Group Corporation; the potash fertilizer is potassium chloride, potassium K 2 The O content is 60%, provided by Shandong Jining Kangjia Fertilizer Co., Ltd.; the zinc fertilizer is zinc sulfate, and the zinc Zn content is 22%, provided by Yangzhou Haofeng Zinc Fertilizer Factory.

[0019] Grind oxamide, urea, diammonium phosphate, potassium chloride, zinc sulfate and bentonite, put them into a mixer, stir and mix evenly, then granulate, and dry at 60-80°C to make 100kg corn Special fertilizer.

[0020] After testing and analysis, the effective content of nitrogen N in the special fertilizer for corn is 23%, pho...

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Abstract

The invention relates to a special corn fertilizer with a slow-release effect. The special corn fertilizer is prepared from the following raw materials in parts by weight: 40-42 parts of oxamide, 12-14 parts of urea, 23-26 parts of phosphate fertilizer, 17-18 parts of potassium fertilizer, 1-3 parts of zinc fertilizer and 4-7 parts of bentonite. The total nutrient content of the special corn fertilizer is 44%-47%, wherein the effective content of nitrogen N is 23%-24%, the effective content of phosphorus P2O5 is 11%-12%, and the effective content of potassium K2O is 10%-11%. The special fertilizer has the advantages such as high nitrogen content, long fertilizer effect, high fertilizer utilization rate and obviously increased yield, the topdressing frequency can be reduced, the labor and time can be saved, and the dosage per mu is 40-50kg.

Description

technical field [0001] The invention relates to a special fertilizer for corn with a slow-release effect, belonging to the technical field of crop fertilizers. Background technique [0002] Corn is an important food crop and feed crop in the world, and it is also the crop with the highest total output in the world. Its planting area and total output are second only to rice and wheat. About one-third of the world's population now uses corn as their main food, among which corn accounts for 50% of the food composition of Asians, more than 90%, 25% for Africa, and 40% for Latin America. Corn is rich in protein, fat, vitamins, trace elements, cellulose and polysaccharides, etc., and has great potential for developing foods with high nutrition and high biological functions. [0003] Maize needs nitrogen, phosphorus and potassium throughout its life, and nitrogen is the most important, followed by potassium and phosphorus. Nitrogen is the nutrient element most needed for corn gro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCC05B7/00C05G3/00C05C9/00C05C11/00C05D1/02C05D9/00C05D9/02
Inventor 李传哲蒋国龙张永春孙若晨马洪波汪吉东许仙菊董月
Owner JIANGSU ACAD OF AGRI SCI
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