这天然的再循环把营养还田，一些专家建议深翻十五厘米时，应追加五厘米厚的混合肥。

This natural recycling returns nutrients to the soil. Some experts advise adding five centimeters of compost for every fifteen centimeters of turned soil.

youdao

合肥市第四十五中是隶属于安徽省合肥市庐阳区的一所初级中学，具有70年的校史，文化底蕴深厚。

Hefei No. 45 Middle School which attached to a junior high school in Hefei, Anhui has a history of more than 70 years with rich culture heritage.

youdao

合肥市第四十五中是隶属于安徽省合肥市庐阳区的一所初级中学，具有70年的校史，文化底蕴深厚。

Hefei No. 45 Middle School which attached to a junior high school in Hefei, Anhui has a history of more than 70 years with rich culture heritage.

youdao