In both of the mix broad leaf sample and single oak leaf sample in the oak stand, N, P, K, Ca and Mg released (except N in mix broad leaf sample) during decomposition process.是什么意思_In both of the mix broad leaf sample and single oak leaf sample in the oak stand, N, P, K, Ca and Mg released (except N in mix broad leaf sample) during decomposition process.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句