一、温室中的蔬菜要及时拉秧 日光温室主要栽培有番茄、菜椒、黄瓜、西葫芦、菜豆等蔬菜。这些蔬菜要及时育苗,适时定植,精心管理,及时拉秧,为温室的夏季利用争取时间。北方地区温室蔬菜拉秧时间最迟不能晚于5月中旬,因为这时蔬菜植株已到衰老期,不会再产生多大效益。 First, the greenhouse vegetables in a timely manner Lao Yang greenhouse cultivation mainly tomato, pepper, cucumber, zucchini, beans and other vegetables. These vegetables should be timely nursery, timely colonization, careful management, timely pull seedlings, for the greenhouses summer use for time. Northern region of the greenhouse seedlings La seedlings no later than mid-May, when the vegetable plants have reached the age of senescence, will not produce much benefit.