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1984年在珍汕97A抽穗10％、15％、20％时分别开始喷施“920”,以每亩总用量12克连续三天分三次施用:第一次3克,兑水120斤;第二次4克,兑水120斤;第三次5克,兑水125斤,使浓度分别为50、70、80ppm。试验重复三次,小区面积0.1亩。制种组合为珍汕97A×IR26。父
In 1984, when the Zhenshan 97A heading 10%, 15% and 20% respectively, they started to spray “920” at a rate of 12 grams per acre for three consecutive days in three batches: the first 3 grams and the watered 120 pounds; The second 4 grams, watered 120 pounds; the third 5 grams, watered 125 pounds, so that concentrations were 50,70,80 ppm. Test repeated three times, the plot area of 0.1 acres. Seed combination for Zhenshan 97A × IR26. father