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1.种子处理 播种前做好发芽试验,要求发芽率达90％以上。并选择晴天,将种曝晒1～2天,以增强生活力。然后浸种催芽,浸种可采取以下方法:用冷水浸泡一夜:或用三份滚开水对一份冷水(水温约50℃)浸泡6～8小时;或用90℃的热水浸烫种子1分钟取出改用冷水浸种,此法可防治蓖麻枯萎病;还可用50％多菌灵,对水500倍稀释后浸种48小时,捞出后用冷水冲洗干净播种,亦可防治蓖麻枯萎病。
1. Seed treatment Sprout test before planting, requires germination rate of 90% or more. And choose sunny, the kind of exposure to the sun 1 to 2 days, in order to enhance vitality. Soak the seeds in the soaking and soaking for one night: soak one cold water (water temperature about 50 ℃) with three portions of boiling water for 6 ~ 8 hours; or soak the seeds with hot water of 90 ℃ for 1 minute Switch to cold soaking, this method can prevent castor wilt; also be used 50% carbendazim, soaked in 500 times diluted with water for 48 hours, remove and rinse with cold water after sowing, but also control castor wilt.