由于蓖麻生育期长,具有无限开花结果习性,果穗成熟期不一致,在我国无霜期较短的北方地区种植,早霜前只能成熟60%～70%的果穗,致使产量低而不稳,影响农民种植蓖麻的积极性。地膜覆盖栽培蓖麻可增温保墒,抗旱保苗,丰产早熟,一般比露地栽培增产30%～60%。其栽培技术要点如下:1 深耕整地施足底肥蓖麻根系发达,主根入土深达60 cm 以上。因此,前茬作物收后及时深耕灭茬,熟化土壤,接纳雨 Due to the long growth period of castor, it has the habit of inflorescence and the ripening period of ear is inconsistent. It is planted in the northern area with short frost-free period in our country. Only 60% -70% of ear can mature before frost, resulting in low and unsteady yield, Planting castor enthusiasm. Castor mulched plastic film can increase soil moisture, drought seedlings, high yield of early maturity, generally more than open field cultivation yield 30% to 60%. The main points of its cultivation techniques are as follows: 1 deep tillage soil preparation foot castor plant developed roots, the main root into the soil depth of more than 60 cm. Therefore, the former crop timely and timely plowing stubble, maturity of the soil, to accept the rain