Twelve treatments, a complete factorial combination of four soil-crop management practices and three fertilizer inputs, were tested at this site. The treatments involve soil and crop management and fertilizer inputs.是什么意思_Twelve treatments, a complete factorial combination of four soil-crop management practices and three fertilizer inputs, were tested at this site. The treatments involve soil and crop management and fertilizer inputs.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句