Cultivation method for improving yield of sweet potatoes in hilly and mountainous areas of northern potato planting region

Abstract

The invention provides a cultivation method for improving the yield of sweet potatoes in hilly and mountainous areas of a northern potato planting region. The cultivation method comprises the steps of selecting a variety, cultivating strong seedlings, conducting ridging and applying fertilizer in an integrated mode, planting the seedlings early in an appropriate period, covering the seedlings with a plastic film, conducting chemical control, preventing and controlling diseases and pests and harvesting the sweet potatoes through machines. According to the step of cultivating the strong seedlings, seeds are dipped in gibberellin to promote sprouting, and strong seedlings and high sheared seedlings are selected carefully. According to the step of planting the seedlings early in an appropriate period, the seedlings are dipped in a modifier, three leaves remains on each seedling, the seedlings are planted in a drought-resisting mode, the seedlings in pits are watered with enough water, and reasonable close planting is adopted. According to the step of preventing and controlling diseases and pests, the diseases are prevented and controlled, and the pests are prevented and controlled. The advanced planting technologies including planting the seedlings early and densely, taking drought resisting measures in a seedling period and the like are adopted, so that the yield of the sweet potatoes is remarkably improved; the comprehensive degree of the technologies is improved, the cultivation technological level of the sweet potatoes in the hilly and mountainous areas is comprehensively improved, work efficiency is improved, and production cost is reduced; meanwhile, the standardization degree is high, and a foundation is laid for standardized setting and popularization of the cultivation technology of the sweet potatoes in the hilly and mountainous areas of the northern potato planting region.

Description

technical field [0001] The invention belongs to the technical field of agricultural production, and in particular relates to a cultivation method for increasing the yield of sweet potatoes in hilly and mountainous regions of northern potato regions. Background technique [0002] sweet potato( Ipomoea batatas L.) With high yield, stable yield, strong stress resistance and wide adaptability, it is not only the fourth largest food crop in China, but also an important industrial raw material, feed, new energy and disaster reduction crop, and its output accounts for more than 80% of the world's total output. With the progress of society, the improvement of living standards and the development of sweet potato industry, sweet potato has become increasingly prominent in the fields of health food, fuel ethanol and starch processing because of its advantages of less input, more output and lower risk. [0003] Since 2000, due to the structural adjustment of agricultural planting indu...

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CN201110426707.5 has studied the film-covered cultivation technology of large ridges in dry land. The...

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