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连续2年试验结果表明,在大白菜播后20~30d、长有8~11片叶时,喷洒郑州汉翔农药化工有限公司生产的5.001%芸薹素内酯·胺鲜酯水分散粒剂750~2000倍药液,可促进大白菜生长,增加单株重量,提高产量,增产效果显著,且对大白菜安全。不同用药时期增产效果表明,以播种后30d、大白菜10~11片叶时用药增产幅度较大,浓度以1000倍为佳,最终增产达15.73%。
The results of two consecutive years showed that after cabbage 20-30 days after sowing and 8-11 leaves long, spraying 5.001% of tratalanolide and urethane fresh water dispersible granules produced by Zhengzhou Hanxiang Pesticide & Chemical Co., Ltd. 750 ~ 2000 times liquid, can promote the growth of Chinese cabbage, increase the weight of single plant, increase yield, increase yield is obvious, and the safety of Chinese cabbage. The results showed that increasing the yield of different dosage periods showed that after 30 days of sowing, the yield of Chinese cabbage was increased by 10 ~ 11 leaves with the concentration of 1000 times better, and the final yield increased by 15.73%.