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夏菜定植做到等距全苗是夺取高产的重要一环。我们大队的做法是,在选用良种、培育适龄壮苗的基础上,定植前抓好“一炼三预防”;定植时掌握“四看七环节”;定植后做到“四防一补”。 1.一炼三预防“一炼”是在定植前7～10天,逐渐加大苗床放风量,进行低温炼苗,使秧苗适应露地定植初期的生长条件。低温炼苗期间的苗床温度,瓜类、茄子、辣椒,白天保持20℃左右,夜间12～13℃;番茄,白天16～17℃,夜间10℃;甘蓝、苤蓝,白天14～
Summer planting vegetables to achieve equidistant whole seedlings is to capture an important part of high yield. The practice of our brigade is to grasp “four preventions and seven links” when planting, and to achieve “four defenses and one supplement” on the basis of selecting elite seeds and nurturing young seedlings of the right age before planting. 1. A refining three prevention “a refining” is 7 to 10 days before planting, and gradually increase the amount of seedbed blower, cold hardening, the seedlings to adapt to the initial growth conditions of open planting. The seedbed temperature, melons, eggplant and peppers during low temperature tempering are kept at about 20 ℃ in the daytime and 12-13 ℃ at night; tomatoes, 16-17 ℃ at daytime and 10 ℃ at night; cabbage,