Effects of different film mulching on agronomic traits and yield of edible sweetpotato

doi:10.14088/j.cnki.issn0439-8114.2021.11.007

Abstract

Abstract: In order to explore the effects of different film mulching on agronomic traits and yield of edible sweetpotato [Ipomoea Batatas （L.） Lam], taking Yanshu No.25 as tested material, and the effects of different film mulching on survival rate, growth and yield of fresh sweetpotato seedlings were studied. The result showed that, compared with CK, the survival rate of transplanted sweetpotato seedlings treated with T1 and T3 increased by 10 percentage. Film mulching effectively reduced the main stem length, thickness and the number of base branch from transplanted to the 55th days after planting, and the most base branches of sweet potato at the 55th days of planting was T3.The largest number of middle-sized tubers was T3, followed by T2, which was 83.33% and 66.67% higher than CK respectively. Compared with CK, the yield of sweetpotato treat with T1, T2 and T3 was increased by 12.36%, 31.46% and 22.47% respectively. Compared with T2, T3 effectively reduced the number of small sweetpotato, the yield of big-sized tubers and small-sized tubers, meanwhile increased the number and yield of middle-sized tubers and the corresponding ratio.

Key words: film mulching, edible sweetpotato [Ipomoea Batatas （L.） Lam], agronomic traits, yield

CLC Number:

S531
S318

ZHANG Lei, WANG Bo, SHANG Li-li, HAN Jun-jie, QIU Peng-fei, JIA Li-cong, WANG Chang-yun, HU Yao, XIN Guo-sheng. Effects of different film mulching on agronomic traits and yield of edible sweetpotato[J]. HUBEI AGRICULTURAL SCIENCES, 2021, 60(11): 31-34.

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