通过模拟试验研究了鸡粪和奶牛粪肥堆腐过程中有机酸的种类、含量和变化规律。

It was studied of kinds contents and changes of organic acids in the composting of hen feces and dairy manure.

youdao

通过模拟试验研究了鸡粪和奶牛粪肥堆腐过程中有机酸的种类、含量和变化规律。

It was studied of kinds contents and changes of organic acids in the composting of hen feces and dairy manure.

youdao