Cultivation method for improving ground temperature at early spring seedling raising period of sweet potato

Abstract

The invention provides a cultivation method for improving ground temperature at an early spring seedling raising period of sweet potatoes. The cultivation method comprises the following steps of: excavating ditches according to the row spacing requirement of sweet potato seedling raising in a plastic small arch shed, selecting straw raw materials such as barley bran, rice chaff, wheat straw, corn leaves and the like which are not decomposed, and adding water for wetting, adding compound microbial inoculums and nutrient, replenishing water and agitating; and flatly spreading the evenly agitated straw raw materials at the bottoms of the ditches, stacking to height of 10-20cm and then covering a layer of soil for seedling raising. The cultivation method can greatly improve the ground temperature in the seedling raising shed, the ground temperature can be increased by 3.5 to 6 DEG C at maximum, the temperature is continuously increased for 40-55 days and the accumulated increased temperature is 160-200 DEG C. The early spring seedling raising time of the sweet potatoes can be brought forward by 15-20 days, the yield of the sweet potatoes is improved by 20-30 percent and the economic benefit of the early spring seedling raising of the sweet potatoes is obviously improved.

Description

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AI Technical Summary

Benefits of technology

This technology allows for better utilization of space while reducing environmental impacts such as land use or water usage. It also makes up an important part of making crops with high yields from late-spring harvesters without causing harmful chemical compounds released through burning them down. Overall, this innovation helps improve crop health and nutritional value and enhance overall food security.

Problems solved by technology

This patented describes how crops grow naturally when they receive warmth by growing roots underground at temperatures below freezing (F). When plants start their growth process after being planted on top of cold soil or water, they experience rapid cool down compared to earlier stages. To address these issues, researchers developed different methods such as electrical resistance wire heatings and biomass fuel combustion systems. These techniques aim to provide better control over the environmental conditions surrounding the root system while maintaining optimal nutrients supply needed for successful development of new vegetables like tomatoes.