花生是北京地区主要食用油料作物,以春播花生为主,种植面积13,000余公顷,集中种植在密云、大兴两个县,占总面积的70%左右.近几年作物种植布局有所调整,怀柔、平谷、顺义、通县等主产粮食的产区县,花生种植面积有所增加.北京郊区花生产量不高,单产不足1.5吨/公顷,最高年份1984年单产1.8吨/公顷,比解放初期仅提高了一倍多,比起其它作物的提高相差很大(小麦单产提高7倍多),造成这种现象的主要原因之一是新品种没有及时更新换代, Peanut is the main edible oil crop in Beijing, with spring sowing of peanut mainly, planting area of ​​more than 13,000 hectares, concentrated in Miyun, Daxing two counties, accounting for about 70% of the total area .In recent years, crop planting layout has been adjusted, Huairou , Pinggu, Shunyi, Tongxian and other main grain producing areas, peanut acreage increased.Beijing suburbs of peanut yield is not high, yield less than 1.5 tons / hectare, the highest yield of 1.8 tons / hectare in 1984, compared with the liberation of the early Only more than doubled. Compared with the other crops, there was a big difference (the yield of wheat increased more than 7 times). One of the main reasons for this phenomenon is that the new varieties are not updated in time,