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1981—1985年,由北京农业大学土化系提供研制合成的整形素B乳油(9—羟基—芴—9—羧酸正丁酯),在河北昌黎和石家庄,对白凤、大久保桃进行了田间疏果试验,已取得初步结果。 1.盛花后一周喷布30—60ppm整形素B药,对不同树龄的大久保桃有一定的疏除作用,喷布50—60ppm药液,对白凤桃有明显的疏除效果,均接近生产上的要求。
1981-1985, the Department of Chemistry, Beijing Agricultural University to provide the development of the synthesis of synthetic B plasticine B (9-hydroxy-fluorene-9-carboxylic acid n-butyl ester), Changli and Shijiazhuang in Hebei, Thinning test, preliminary results have been achieved. 1. Bloom one week after the spray spray 30-60ppm plasticine B drugs, Okubo peaches of different ages have a certain effect of sparse, sprinkle 50-60ppm liquid, white Feng-peach significantly sparse effect, are close to production Request.