Isbn: 9787511614797 - 河北省蔚县耕地资源评价与利用 (1 resultados)

paperback. Condición: New. Pub Date: 2013-12-01 Pages: 198 Language: Chinese Publisher: China Agricultural Science and Technology Press. Yuxian arable land resource evaluation and utilization in ten chapters systematically expounded Yuxian natural profile. site conditions farmland. farmland infrastructure. soil type and soil properties. in-depth analysis of the status and distribution of Yuxian soil organic matter. nitrogen. phosphorus. potassium and other nutrients in the soil space. and with the 1982 second national .…