Analysis of Nitrogen Production in Ecological Household Farm
Wang Huizhu1, Yang Ping2, Liao Baohua3, Wu Yanlong4
1. Department of Grassland Science, Gansu Agricultural University, Lanzhou 730070; 2. Husbandry Section of Yanchi County, Ningxia Hui Autonomous Region, 751500; 3. Science and Technology Commission of Yanchi County, Ningxia 751500; 4. Grassland Station of Yanchi County, Ningxia 751500