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全苗是丰产的基础。花生种子大,价格高,生产上历来都按需要苗数播种,不间苗。但在露地栽培的条件下,很难拿全苗,据1981年在金县有关社队调查,一般缺苗率达15～20％,甚至更高。实践证明,花生出土后再补苗,效果不大,因而缺苗成为减产的重要原因之一。 采用地膜覆盖栽培技术,花生生长发育环境条件有了相应的改变。1981年金县向应公社花生覆膜面积达2,800亩,平均亩产达到625斤。据苗期调查,大面积覆膜花生出苗率达92％,比不覆膜花生出苗率高10～20％。在覆膜条件下,花生一次播种出全苗完全有可能。
Full seedling is the basis of high yield. Peanut seeds, the price is high, the production has always been the number of seedlings planted, no seedlings. However, it is hard to get the whole plant under open field cultivation. According to the investigation of the relevant community teams in Jinxian County in 1981, the general lack of seedlings rate is 15-20% or even higher. Practice has proved that peanuts and then fill up after the emergence of the soil, the effect is not, and thus lack of seedlings to become one of the important reasons for the reduction. Using mulching cultivation techniques, the peanut growth and development of environmental conditions have been changed accordingly. In 1981, Jin County Xiangshan commune peanut coating area of 2,800 acres, the average yield reached 625 pounds. According to the seedling survey, the coverage of large areas of peanut germination rate of 92%, 10% higher than the non-coated peanut emergence rate of 10%. In the film conditions, a sowing of peanut seedlings is entirely possible.