Effects of rice stubble height on growing development and seed yield of Chinese milk vetch in southern Henan

doi:10.14088/j.cnki.issn0439-8114.2022.24.004

Abstract

Abstract: The effects of six rice stubble height（10,20,30,40,50,60 cm） on growing development and seed yield of Chinese milk vetch （Astragalus sinicus L.） in southern Henan were explored to seek the best treatment of rice stubble height. The results showed as follows： different stubble height could significantly affect the light intensity and change the surface temperature and humidity. The high stubble （50~60 cm） could provide a suitable microclimate for the early growth and development of Chinese milk vetch, but was not conducive to the yield of fresh grass at full flowering and seed at harvest. The stubble height of 30~40 cm could increase the stem diameter, branch number and fresh weight per plant in the middle and late growth stage of Chinese milk vetch, and then increase the fresh grass yield at the full flowering stage and seed yield at the harvest stage, which was worth promoting and applying in rice production in southern Henan Province.

Key words: rice, stubble height, Chinese milk vetch （Astragalus sinicus L.）, growing development, seed yield, Henan Province

CLC Number:

S511
S142

NIE Liang-peng, GUO Li-wei, ZHENG Chun-feng, DING Li, ZHANG Cheng-lan, PAN Zi-liang, ZHANG Li-xia, ZHANG Lin, ZHU De-yan, SHI Peng-fei, LING Jing-wei, LYU Yu-hu. Effects of rice stubble height on growing development and seed yield of Chinese milk vetch in southern Henan[J]. HUBEI AGRICULTURAL SCIENCES, 2022, 61(24): 19-22.

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