Four-change-one-increase high efficiency cultivation method for fresh eating sweet potatoes in plains of China northern potato region

Abstract

The invention provides a four-change-one-increase high efficiency cultivation method for fresh eating sweet potatoes in plains of the China northern potato region. The method comprises the following steps that an excellent variety is selected; health seedlings are selected; ridging, pipe layering and film overlaying are carried out; close planting is carried out earlier appropriately; water and fertilizers are managed accurately; appropriate chemical control is implemented; vine removing and harvesting are carried out mechanically; and early harvesting and grading are carried out in proper time. In the cultivation method, drip irrigation is used according to needs of scaled household farms, the wheelspan of a power machine matching mechanical traction is taken into full consideration, a single-ridge-single-row manner is changed to a large-ridge-double-row manner, rely on natural rainfall is changed to accurate water supply, fertilizer broadcasting is changed into quantitative fertilizer supply, excessive chemical control is changed into staged green chemical control, and the sweet potato plantation density is increased; thus, the survival rate in the seedling stage and the rate ofcommercial potatoes are improved, the climate risk in sweet potato production is reduced, the high efficiency cultivation method with the core of four-change-one-increase for the fresh eating sweet potatoes is formed on the basis of integration of water and fertilizer drip irrigation, and production of the fresh eating sweet potatoes enters a mechanical, facility, engineering and simplified stage.

Description

technical field [0001] The invention belongs to the category of agricultural production technology, and specifically relates to a high-efficiency cultivation method of "four changes and one increase" for fresh sweet potatoes in the plains of northern potato regions. Background technique [0002] Sweet potato has high yield, stable yield and wide adaptability. It is the seventh largest food crop in the world, and its importance in maintaining food security and alleviating energy crisis has become increasingly prominent. China is the world's largest sweet potato planter and producer. In 2016, my country's sweet potato planting area and total production accounted for 38.1% and 67.1% of the world's total, respectively. [0003] The planting area and output of sweet potato in the northern potato area are about 25.8% and 30.7% of the national total respectively. In recent years, affected by the adjustment of the planting industry structure, the structural reform of the agricultur...

AI Technical Summary

Problems solved by technology

For example, drip irrigation and integrated water and fertilizer technologies for potatoes have been widely used, but the application on sweet potatoes is still less

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