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一种比2,4—D毒性小、药害轻、使用简便、节省劳力的新型激素——防落素,1985年11月27—29日在南京市召开的全国各地协作单位参加的应用推广鉴定会上得到充分肯定。自1982年全国推广以来,水溶性防落素在番茄、茄子、西葫芦,西瓜、冬瓜、荔枝、龙眼、柑桔、月桔、朝天椒、月季和油茶等经济作物上均获得增产效果。用水溶性防落素50ppm处理幼龄温州密柑,座果率比对照高3.83倍,其保果作用超过环剥保果19％,是当前最有希望的保果药剂。
A 2,4-D toxicity than the light, light harm, easy to use, labor-saving new hormone - anti-pigmentation, November 27-29, 1985 held in Nanjing City, the collaborative units across the country to participate in the application of the promotion Appraisal meeting fully affirmed. Since its popularization nationwide in 1982, water-soluble PSL has been boosted yield on cash crops such as tomato, eggplant, zucchini, watermelon, melon, lychee, longan, citrus, moonflower, asparagus, rose and camellia. With 50ppm water-soluble PSL treatment young Wenzhou citrus fruit set rate of 3.83 times higher than the control, the protective effect of more than 19% of the results of girdling, is currently the most promising preservation of pharmacy.