Preliminary study on cultivation patterns and effect of high-starch sweet potato varieties

doi:10.14088/j.cnki.issn0439-8114.2020.01.005

Abstract

Abstract: In order to explore the high yield cultivation mode of high starch sweet potato [Ipomoea batatas （Linn.） Lamarck], the effects of four factors including different fertilizers, sweet potato cultivars, planting densities and mulching types on vine yield, fresh root tuber production, dry matter rate and T/R value（ratio of fresh vine yield and fresh root tuber production）were studied by an orthogonal randomized test. The results showed that combination A₃B₁C₃D₂, that is, applying compound fertilizer, choosing Shangshu 19, covering black film, planting density of 59 895/hm², had the highest production of fresh root tuber. The vine yield, dry matter rate and fresh root tuber production of compound fertilizer was the highest; The effect of sweet potato cultivar on vine and T/R value was the most remarkable; Mulching can improve dry matter content and the production of haulm and tuber; And the effect of cultivation density on dry matter content was the highest.

Key words: sweet potato [Ipomoea batatas （Linn.） Lamarck], cultivation pattern, yield

CLC Number:

S531

YE Xing-zhi, CHEN Qiao-ling, QU Yong, XU Yi, HAO Miao, ZHANG Deng-hong, WANG Zhen, CHENG Qun. Preliminary study on cultivation patterns and effect of high-starch sweet potato varieties[J]. HUBEI AGRICULTURAL SCIENCES, 2020, 59(1): 25-27.

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