Crop rotation and intercropping method for three crops including sugarcane, silage corn and millet

Abstract

The invention discloses a crop rotation and intercropping method for three crops including sugarcane, silage corn and millet. The method comprises the steps of intercropping sugarcane and millet or silage corn on a piece of land, renovating a perennial root sugarcane field every 3-5 years, and intercropping millet or silage corn in an original sugarcane planting area, and conducting crop rotationon sugarcane in an original millet or silage corn planting area, wherein a crop of silage corn is subjected to crop rotation after each crop of millet is planted in the millet or silage corn plantingarea. Due to the fact that the growth cycle of millet and silage corn is short, a crop of millet and a crop of silage corn can be basically planted every time a crop of sugarcane is planted, namely acrop of sugarcane, a crop of millet and a crop of silage corn are harvested every year. Therefore, the method disclosed by the invention combines two planting modes of crop rotation and intercropping,so that the land is subjected to crop rotation, continuous cropping obstacles are avoided, meanwhile, the land is fully utilized, the land output quantity is increased, the land cost is reduced, andgood harvest of three crops including sugarcane, silage corn and millet is realized.

Description

Technical field [0001] The invention relates to the technical field of crop planting, in particular to a method for crop rotation and intercropping of sugarcane, silage corn and millet. Background technique [0002] sugar cane( Saccharum officinarum ) Is one of my country's important economic crops and the main sugar crop in my country. The output of sucrose accounts for more than 90% of the country's total sugar output. Guangxi is my country's largest sugar cane and sugar production base. The annual sugarcane planting area is about 11.5 million mu, accounting for about 60% of the country's sugarcane planting area, and the sugar cane sugar production accounts for more than 65% of the country. However, in recent years, domestic sugar prices have continued to fall, and due to the impact of rising costs of land and labor, the cost of domestic sugar has remained high, and the cane sugar industry has suffered huge losses. In addition, sugarcane has been planted continuously for many ...

AI Technical Summary

Problems solved by technology

However, in recent years, domestic sugar prices have continued to fall, and due to the impact of rising land and labor costs, the cost of sugar production in China has remained high, and the cane sugar industry has suffered huge losses

Coupled with the long-term continuous cropping of sugarcane, most of the sugarcane areas have been continuously cropped for more than 30 years without a reasonable crop rotation. The physical and chemical properties of the land have changed, and the pests and diseases have aggravated, which has affected the growth and development of sugarcane. The output rate per unit area of ​​land decline, seriously restricting the development of my country's sugar industry

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