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大名县是中国花生之乡,常年种植花生面积50万亩,面积、产量均居河北省第一。近年来随着花生新品种新技术的开发应用以及花生良种补贴政策的实施,在食用油价格刚性攀升的形势下,花生面积不断扩大,花生主产区受耕地面积的限制重茬种植现象十分普遍,特别是在一些沙质薄地上种植小麦玉米远不如种植花生效益好,在很大程度上也推进了春花生重茬种植的规模发展。但花生忌重茬,重茬花生不仅减产而且品质变差。据研究,花生连作2年,平均减产
Daming County is the hometown of Chinese peanut perennial perennial planting area of 500000 mu, area, output ranked first in Hebei Province. In recent years, with the development and application of new peanut new technologies and the implementation of peanut seed subsidy policy, with the rising price of edible oil, the area of peanut continues to expand. The planting area of peanut is limited by the area of cultivated land. In particular, the cultivation of wheat and corn on some sandy thin soils is far less effective than the planting of peanuts, and to a large extent also promoted the large-scale development of stubble planting of spring peanuts. However, peanuts avoid heavy crop, heavy crop peanut not only reduce production and quality deterioration. According to the study, peanuts even for 2 years, the average yield