For treatments of combing organic fertilizer with NPK and PK, NPK and abandoned land, the rate of humic acid carbon to humus acid carbon increased and opposite to rate of fulvic acid carbon to humus acid carbon.是什么意思_For treatments of combing organic fertilizer with NPK and PK, NPK and abandoned land, the rate of humic acid carbon to humus acid carbon increased and opposite to rate of fulvic acid carbon to humus acid carbon.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句