金县向应公社关家九队,1981年种花生190,5亩,平均亩产402斤.其中地膜覆盖46,2亩,经市花生验收领导小组验收,平均亩产干果为890.8斤,比相同条件下未覆膜亩产514.5斤,增产73.1%一、基本情况这块覆膜高产田为黑黄土,中砾质轻壤,全土层1米以上,是从 Jinxian to the commune Guan nine teams in 1981 190.5 acres of peanuts, an average yield of 402 kg, of which 46,2 mu mulching, acceptance by the leading group of peanut acceptance inspection, the average per mu dry fruit yield of 890.8 kg, compared with Under the same conditions, mucilage 514.5 kg, an increase of 73.1% per mu, the basic situation of this piece of film high yield field of black loess, gravel light soil, the entire soil layer of more than 1 m, from