1 精选基地实行空间隔离按照油菜制种规程,油菜制种的隔离距离在1500m 以上。在秋季油菜生产季节搞油菜制种,首先要选好油菜制种隔离区,1995年我们选择一处三面环山一面出口,隔离条件十分理想的制种区进行了三年制种,从隔离条件上首先保障了制种的需要,在隔离区出口地段,尽可能安排农民种小麦,如果农民种油菜,则必须种植华杂3号父本,利用山体自然 A selection base of the implementation of spatial isolation rape seed production rules, rapeseed species isolation distance of 1500m or more. In rapeseed production season in autumn rapeseed production, we must first select the rapeseed isolation zone, in 1995 we choose a three-sided mountain side of the export, isolation conditions are very good seed production area for three years of species, from the isolation conditions On the first to protect the need for seed production in the exit area of ​​the quarantine area, as far as possible arrangements for peasants to grow wheat, if the peasants planted rape, you must plant the Huazha No.3 paternity, the use of natural mountain