Special compound fertilizer for sugar cane

Abstract

A special compound fertilizer for sugarcane. The compound fertilizer is divided into two kinds of fertilizers: base fertilizer compound fertilizer and topdressing compound fertilizer according to the different requirements for fertilizers in different stages of sugarcane growth. The formula of the base fertilizer is N-P2O5 according to the mass ratio -K2O-ZnO: 10-10-8-0.5, the base fertilizer compound fertilizer contains several components such as urea, calcium magnesium phosphate fertilizer, potassium sulfate, zinc sulfate and filler; the top dressing formula is N-P2O5-K2O: 18- 6-4. The compound fertilizer for topdressing contains urea, general calcium, potassium sulfate and fillers; tests show that the present invention can effectively increase the yield per unit area of ​​sugarcane by 0.5-1.0 tons and increase the sugar content of sugarcane by 0.5-1.0 percentage points. Improve the utilization rate of chemical fertilizers by 3 to 5 percentage points. This technology is more suitable for the application on the acidic soil in the tropical and subtropical sugarcane areas in southern my country; when the sugarcane is newly planted or the perennial root pine pocket is applied to the sugarcane at a rate of 40-60kg per mu In the ditch, cover the soil after fertilization; the topdressing compound fertilizer is applied at 60-80kg per mu per mu during the sugarcane growth period, and then 20-40kg of urea is added once.

Description

Technical field: [0001] The invention relates to a special compound fertilizer for sugarcane. Background technique: [0002] Sugarcane is an important sugar crop in my country. It has a long growth cycle and requires a large amount of fertilizer. For many years, sugarcane fields have only focused on the application of nitrogen fertilizers, and insufficient supplementation of phosphorus, potassium and some trace element fertilizers. At the same time, the formulas of compound fertilizers in many sugar factories are mostly empirical formulas, which seriously deviate from balanced fertilization. Principles of fertilization. Poor pertinence of fertilizers and unreasonable fertilization ultimately lead to low yield and sugar content of sugarcane, while causing waste of fertilizers and environmental pollution. Invention content: [0003] The purpose of the present invention is to provide a special compound fertilizer for sugarcane, which can effectively solve the current proble...

AI Technical Summary

Problems solved by technology

[0003] The purpose of this invention is to provide a special compound fertilizer for sugarcane, which can effectively solve the problems of low sugarcane yield and sugar content and low fertilizer utilization rate