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为了探讨红花留种田春季短期灌水,对治螟的作用与红花的影响,1965年我们在江西省丰城县段潭、老圩、董家等地,于4月26日至5月1日,选择前作二季晚稻,越冬三化螟虫口密度较大的红花留种田,红花处于结荚初期(平均青荚占21.5％,花占65.5％,未开花占13％),越冬三化螟醒眠以后,羽化之前,分别灌水三天、四天和不灌水三种处理,水深保持3—4寸,浸后排干。灌水前后定期
In order to explore the short-term spring safflower stay farming irrigation, the role of governance borer and the impact of safflower, we Fengtai County in Jiangxi Province in 1930, Lake, Lao Wei, Dong and other places, from April 26 to May 1 In the early season, the safflower was kept in the early stage of podding (the average pod accounted for 21.5%, the flower accounted for 65.5% and the unwashed flower accounted for 13%), and the winter over-winter After awakened, the stems were irrigated for three days, four days and three days without irrigating respectively. The depth of water was maintained at 3-4 inches and then drained to drain. Regular irrigation before and after