贞元公社位于我县北部头道塬,北高南低,成为一塬两川四面坡,属渭高抽、宝鸡峡新灌区,海拔510米,高差90米,年平均气温13.1度,年雨量545毫米,无霜期221天.全社18个大队,95个生产队,23,155人,54,439亩耕地(其中水地31,175亩),每人平均2.35亩,主产小麦、玉米、高粱、棉花.去年七月,在公社党委领导下,通过访问座谈,田间调查,室内分析,进行了土壤普查,共取土样1,275个,绘制了社、队土壤养分及土壤分类现状图,并对两万 Zhenyuan commune is located in the headland of North County in the northern part of our country. It is a plateau of Sichuan Plateau. It belongs to Weigao pumping and Baojixia new irrigation area. The elevation is 510 meters with a height difference of 90 meters and the annual average temperature is 13.1 degrees. Rainfall of 545 mm, frost-free period of 221 days. The whole community of 18 brigade, 95 production teams, 23,155 people, 54,439 acres of arable land (of which 31,175 acres of water), an average of 2.35 acres, the main production of wheat, corn, sorghum, cotton. In January, under the leadership of the commune party committee, we conducted a soil survey through field interviews, field surveys and laboratory analyzes. We took a total of 1,275 soil samples and plotted the status quo of the soil nutrients and soil classification of the communities and teams.