Title: Xian dai nong ye zhi shi gan bu du ben
Description: Ben shu nei rong bao kuo:xian dai nong ye de yuan qi, Xian shi kao liang:fa zhan xian dai nong ye de jin po xing yu tiao jian, Xian dai nong ye de fa zhan mo shi, Ke ji shi di yi sheng chan li:xian dai nong ye yu ke ji chuang xin, Rong ru xin xi hua lang chao xian dai nong ye yu xin xi hua, Bao jia hu hang:xian dai nong ye fa zhan zhong de bao zhang ti xi deng.
Subjects: Nong ye ji shu, Xue xi can kao zi liao ., Gan bu jiao yu