Slow/controlled-release fertilizer suitable for sugarcane mechanized planting

Abstract

The invention discloses a slow / controlled release fertilizer suitable for sugarcane mechanized planting. The slow / controlled release fertilizer is prepared by uniformly mixing the following componentsin parts by weight: urea, 4-8% alginic acid coated urea, calcium superphosphate, potassium chloride, calcium magnesium phosphate and trace elements. The fertilizer comprises the following raw material components in parts by weight: 150-300 parts of urea, 200-400 parts of 4% 8% alginic acid coated urea, 50-100 parts of calcium superphosphate, 100-200 parts of potassium chloride, 50-100 parts of calcium magnesium phosphate and 20-50 parts of trace elements. According to the slow / controlled-release fertilizer suitable for sugarcane mechanized planting, the slow / controlled-release fertilizer andother fertilizers are effectively proportioned according to nutrient absorption rules of sugarcanes in different periods and by utilizing the characteristic that alginic acid coated urea slowly releases nutrients, so that the prepared slow / controlled-release fertilizer can obviously improve the yield and quality of the sugarcanes, reduce the sugarcane planting cost, improve the fertilizer utilization rate, and improve the fertilizer efficiency, reduce the labor cost; through one-time hole fertilization, the fertilization frequency is reduced, and nitrogen fertilizer is effectively and slowly released, so that the loss of effective components of the fertilizer is reduced, the fertilizer utilization rate is greatly increased, and the sugarcane yield is increased.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a slow-controlled release fertilizer suitable for sugarcane mechanized planting. Background technique [0002] As a temperate and tropical crop of Saccharum, sugarcane is widely planted in southern tropical regions such as Guangdong, Guangxi, Yunnan and Hainan in China. Sugarcane is one of the important economic crops that produce sugar in the market. Sugarcane has a high photosynthetic efficiency and is often called "Energy crops", sugar is a substance in great demand for human beings. In addition to being rich in sugar and water, sugarcane also contains a variety of substances that are beneficial to human metabolism, including vitamins, proteins, organic acids, calcium and iron, etc. The sugar cane that is abundant in my country is mainly sugar production. The annual output of sucrose ranks third in the world, accounting for more than 80% of the total sugar consumption in my ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of slow and controlled release fertilizer suitable for mechanized planting of sugarcane, to solve the above-mentioned background technology, it is proposed that sugarcane has a large demand for nutrients in the growth process, and it is necessary to apply base fertilizer and multiple topdressing to ensure that sugarcane can meet normal conditions. Nutrient requirements for growth and development. In my country’s sugarcane areas, fertilization is mainly done by spreading and covering soil. The fertilization method is relatively traditional and requires a lot of labor. However, the nutrients of fertilizers are often lost due to rainwater leaching, direct volatilization or being fixed by the soil. The utilization rate of sugarcane to fertilizer is reduced, so excessive chemical fertilizer must be applied to ensure the normal growth of sugarcane, which not only increases the cost of fertilizer, but also makes the cost of sugarcane planting remain high, and also aggravates the problem of environmental pollution

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