Wide-area surveys have been conducted on a prefectural or regional scale in Japan for revealing soil chemical properties affecting soybean yield. However, they vary by region and thus, the common c...

中文翻译：

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日本全国范围内影响大豆产量的土壤化学性质

为了揭示影响大豆产量的土壤化学性质，日本在县或地区范围内进行了大范围调查。但是，它们因地区而异，因此，常见的...