Study on the variation of plant height and stem thickness of sweet corn under different nitrogen fertilizer levels

doi:10.14088/j.cnki.issn0439-8114.2020.12.004

Abstract

Abstract: In order to clarify the effects of different nitrogen fertilizer levels on plant height and stem diameter of sweet corn, six nitrogen fertilizer levels plot experiments were carried out in Meitian village base of Crop Research Institute of Zhongkai University of Agriculture and Engineering for the early-cropping and late-cropping. The plant height and stem diameter of sweet corn at different growth stages were measured. The results showed that plant height and stem diameter of sweet corn increased with the advance of its growth period, and reached the maximum at the filling stage. There was a significant positive correlation between stem diameter and nitrogen fertilizer; There was a significant positive correlation between early stem diameter and nitrogen fertilizer; Late stem diameter was positively correlated with nitrogen fertilizer; In different growth stages, stem diameter was positively correlated with natural plant height or physiological plant height, and early stem diameter was positively correlated with natural plant height or physiological plant height. Late-growing stem diameter was positively correlated with natural plant height or physiological plant height.

Key words: sweet corn, nitrogen fertilizer, plant height, stem thickness

CLC Number:

S143.1

ZHANG Shan-xuan, HUANG Ying-hua, ZHANG Hua-jie, ZHOU Li-yan, ZHAO Li-jun, XIA Li-sha, HONG Rui-xia, CHEN Qiu-yu, CHEN Qing-chun. Study on the variation of plant height and stem thickness of sweet corn under different nitrogen fertilizer levels[J]. HUBEI AGRICULTURAL SCIENCES, 2020, 59(12): 17-21.

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