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Non-puddling rice cultivation increases subsequent soybean yield in a rice–soybean rotation system
Plant Production Science ( IF 1.6 ) Pub Date : 2020-10-12 , DOI: 10.1080/1343943x.2020.1828948
Hiroaki Samejima 1 , Yuya Chonan 1 , Tsuyoshi Yamane 1 , Yuji Ohashi 2 , Sho Morimoto 1, 3 , Ryo Ohtomo 1, 4 , Norikuni Oka 1 , Takuji Nakamura 1
Affiliation  

ABSTRACT

Non-puddling rice cultivation would increase subsequent soybean yield. Soybean (cv. ‘Yukihomare’) was grown in farmers’ fields previously cultivated with puddled transplanted rice (Puddled Rice), non-puddled transplanted rice (Non-puddled Rice), and dry direct-seeded rice (Direct-seeded Rice) in central Hokkaido, Japan. Average soybean yield was significantly (p < 0.05) higher in Non-puddled Rice fields (411 g m−2) and in Direct-seeded Rice fields (404 g m−2) than in Puddled Rice fields (352 g m−2). The respective yield increases (16.8% and 14.7%) indicate that non-puddling rice cultivation increased subsequent soybean yield. The significantly higher values for shoot dry weight and number of seeds per m2 seen in fields after non-puddling rice cultivation suggest that non-optimal plant development during vegetative and early reproductive growth stages may be ameliorated. The increases in soybean yield seen in this study may encourage the adoption of non-puddling rice production under the rice–soybean rotation system in Japan.



中文翻译:

在水稻-大豆轮作系统中,非水化水稻种植可提高随后的大豆产量

摘要

不混养水稻将增加随后的大豆产量。大豆(cv。'Yukihomare')种植在农民的田地里,以前曾在该地区种植过带水transplant的插秧稻米(Pudded Rice),非带水transplant的插秧稻米(Non-pudled Rice)和干式直纹稻(Direct-seeded Rice)稻米。日本北海道中部。非水化稻田(411 gm -2)和直播水稻田(404 gm -2)的平均大豆产量比水化稻田(352 gm -2)高(p <0.05 )。各自的增产(分别为16.8%和14.7%)表明,非水化水稻种植可提高随后的大豆产量。苗干重和每m 2种子数明显更高的值在非水化水稻种植后在田间观察到的现象表明,在营养生长和早期生殖生长阶段,植物的非最佳发育可能会得到改善。在这项研究中看到的大豆单产的增加可能会鼓励日本在稻米-大豆轮作制度下采用非水产大米。

更新日期:2020-10-12
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