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义县农业科学研究所利用4年时间(1983—1986年)研究试验在棉田内种红花带招引天敌,结合化学防治方法,防治蚜虫,效果很好。红花是一种新兴油料,种子含油牢达30—40％,食用红花油具有降低血内胆固醇含量及软化血管作用,是经济价值较高的健康食品。一般在3月下旬至4月上旬,在整好地的棉田里每隔8—10行播种两行红花。播种深
Yixian Institute of Agricultural Sciences use of four years (1983-1986 years) research trials in the cotton field with red flowers to attract natural enemies, combined with chemical control methods, control aphids, the effect is very good. Safflower is a new fuel oil, seed oil fast 30-40%, safflower oil with lower blood cholesterol and soften blood vessels, is a high economic value of health food. Generally between late March and early April, two rows of safflower plants are sown every eight to 10 lines in well-dressed cotton fields. Seeding deep