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用50％辛硫磷乳油闷种,是当前取代有机氯防治地下害虫较好的农药。为了充分发挥药剂的防虫效果,在闷种时须掌握以下要点。1.用药量要准确。辛硫磷闷种的有效浓度为0.08～0.1％,即1斤药拌500～600斤种子。浓度太低,起不到防虫作用;浓度太高,对种子发芽会有抑制作用。2.对水量要适宜。使用辛硫磷乳油,要先加水稀释,再拌种。加水的比例是按种子量来确定的,一般100斤干种子加水10斤为宜,为了使药液尽快被种子吸收,也可用7～8斤水。药、水、种子的配比应为:1:40
With 50% phoxim boredom species, is currently replacing organic chlorine prevention and treatment of underground pests better pesticides. In order to give full play to the pesticide effect of insecticide, in boredom to master the following points. 1. The dosage should be accurate. Phoxim bored species effective concentration of 0.08 to 0.1%, that is, 1 kg of medicated mix 500 ~ 600 kg seed. Concentration is too low, can not play the role of pest control; concentration is too high, there will be inhibition of seed germination. 2. The amount of water should be appropriate. Phoxim EC, the first dilution with water, and then seed dressing. The proportion of water is determined by the amount of seeds, the general 100 kg dry seeds add water 10 kg is appropriate, in order to make the liquid absorbed by the seeds as soon as possible, but also available 7 to 8 pounds of water. Medicine, water, seed ratio should be: 1:40