Special corn fertilizer with slow-release effect

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...

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.