论文部分内容阅读
The effect of different soybean varieties and sowing dates on photosynthetic characteristics and yie
【机 构】
：
College of Agronomy,Sichuan Agricultural University,625014,Yaan Sichuan China
【出 处】
：
第八届世界大豆研究大会暨第九届全国大豆学术讨论会
【发表日期】
：
2009年12期
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