Long-lasting potassium sulphate type compound fertilizer special for sugarcanes

Abstract

The invention relates to the fertilizer technology, and in particular relates to a long-lasting potassium sulphate type compound fertilizer special for sugarcanes, which comprises the following components in parts by pure nutrient weight: 14-22 parts of nitrogen, 4-12 parts of phosphorus pentoxide, 12-18 parts of potassium oxide and 0.07-0.26 part of combined biochemical inhibitor, wherein the combined biochemical inhibitor is prepared from a urease inhibitor and a nitrification inhibitor, the urease inhibitor is composed of hydroquinone (IIQ) and N-butyl thiophosphoric triamide (N-NBPT), the nitrification inhibitor is composed of dicyandiamide (DCD) and 3,4-dimethyl-phenyl-piperazinium (DMPP), and the weight ratio of the urease inhibitor to the nitrification inhibitor is (0.8-1.5):(1.2-2.5). The long-lasting potassium sulphate type compound fertilizer special for sugarcanes disclosed by the invention has the advantages of being reasonable in formula, proper in price, long in fertilizer effect period and high in fertilizer utilization rate and is capable of reducing application frequency and obviously prompting growth and development of sugarcanes and sugar accumulation; the yield of sugarcanes is increased by 12.8%; the sucrose content is increased by 5.2%; the long-lasting potassium sulphate type compound fertilizer special for sugarcanes disclosed by the invention is worthy of popularization and application.

Description

technical field [0001] The invention relates to fertilizer technology, in particular to a technology of long-acting potassium sulfate compound fertilizer specially used for sugarcane. Background technique [0002] Sugar is a necessity in people's life, and sugar production is of great significance in our national economy. Sugarcane is an important sugar crop in my country. At present, my country's sugarcane cultivation area is about 20 million mu, and the sugar production is about 11 million tons. Its sucrose production accounts for more than 90% of the country's sucrose production, and it plays a pivotal role in my country's sugar production. [0003] Most sugarcane in my country is cultivated on dry slopes, with low yield and greatly affected by climatic factors. In the 20th century and the beginning of the 21st century, the purchase price of sugarcane was extremely low, and the economic benefits of sugarcane planting were not high, and even lost money in bad weather year...

AI Technical Summary

Problems solved by technology

In the 20th century and the beginning of the 21st century, the purchase price of sugarcane was extremely low, and the economic benefits of sugarcane planting were not high, and even lost money in bad weather years, which seriously affected the enthusiasm of farmers for planting, and also seriously affected the sustainable development of my country's sugar industry

At present, there are mainly the following problems in the application of sugarcane fertilizers in my country: First, the frequency of fertilizer application is too high, and the cost of fertilization is relatively high

[0006] The type of nitrogen source has an important impact on nitrogen fertilizer efficiency, nitrogen use efficiency and fertilizer cost. Generally, amide nitrogen fertilizer has a slightly slower fertilizer effect, while nitrate nitrogen is most easily absorbed by sugarcane, and the fertilizer effect is faster, but the price is high and the fertilizer effect is short. , the fertilizer efficiency of ammonia nitrogen is between amido nitrogen and nitrate nitrogen