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3.苗期管理秧苗青头后及时揭除地膜。秧苗一叶一心时,每平方米苗床喷3公斤1,500倍敌克松液和60克30倍20％敌稗乳油。秧苗两片叶时,每平方米苗床追35克硫酸铵(配成1％浓度肥液追施)。秧苗两叶一心时,每平方米苗床再喷1,000倍液敌克松1公斤。苗齐后即开始注意水分管理,视盘土墒情及时喷浇补水(不要灌水),随通风口扩大,适当增加补水次数。揭膜后,再追1次肥(用量同前次),此时水分蒸发量较大,每天早晚各浇1次水。
Seedling management of young seedlings in time to remove the film. Seedling leaves a heart, the seedbed per square meter spray 3 kg 1,500 times the enemy fleece-proof and 60 grams of 30 times 20% of the enemy barnyard EC. Seedlings two leaves, the seedbed per square meter to recover 35 grams of ammonium sulfate (dubbed 1% concentration of fertilizer topdressing). Seedlings two leaves one heart, the seedbed per square meter and then spray 1000 times the enemy fleece 1 kg. After Miao Qi began to pay attention to water management, depending on the soil moisture soil spraying timely replenishment (do not irrigation), with the vent to expand, the appropriate increase in the number of times. Uncover the film, and then chase a fertilizer (the same amount with the previous), then a larger amount of water evaporation, watering 1 day sooner or later each day.