为了探明蓖麻的生育特点和高产技术,我们采用育苗移栽、地膜覆盖和露地直播三种方式进行栽培试验,结果如下。 (一)蓖麻的生育进程 据定点观察:蓖麻的全生育期为87～97天,在水、肥、光、温适宜的情况下,一般播种到出苗为11～18天,出苗到现蕾为35～38天,现蕾到开花为7～8天,开花到成熟为45～51天,后期果成熟需 In order to prove the fertility characteristics of Castor and high-yielding techniques, we use three ways of transplanting seedlings, mulching and open-field planting for cultivation experiments. The results are as follows. (A) castor’s growth process According to the fixed observation point: castor’s full growth period of 87 to 97 days, in the water, fertilizer, light, temperature appropriate circumstances, the general sowing to the emergence of 11 to 18 days, emerge to the present Bud 35 to 38 days, budding to flowering 7 to 8 days, flowering to mature for 45 to 51 days, the latter mature fruit