蓖麻是一年生草本经济作物，具有抗旱、耐瘠薄、耐盐碱特性，适应山区薄地种植。井陉县旱作区农民利用丘陵缓坡地种植蓖麻，经济效益十分可观，一般６６７（亩）产１５０～２５０kg（公斤），产值４５０～８００元。其主要栽培技术是：一、选地、轮作选择土层深厚、疏松的山坡? Castor is an annual herb economic crops, with drought, barren, salt-tolerant properties, to adapt to the cultivation of thin mountain areas. In Jingtai County, the farmers in dry farming area use castrated grass with gentle hillside, so the economic benefits are very impressive. Generally 667 (mu) produce 150 ~ 250kg (kg) and the output value is 450 ~ 800yuan. The main cultivation techniques are: First, the election, rotation to choose the deep soil, loose slopes?