合理安排茬口是提高塑料大棚种植效益的关键措施之一。近年来的实践证明,以下几种种植模式效益较高,各地可根据实际情况灵活选用。 一、冬茬黄瓜——夏茬豆角——秋冬番茄 冬茬黄瓜选用长春密刺、新泰密刺、津春4号等耐低温、耐弱光的品种,10月上旬播种,采用黑籽南瓜嫁接育苗,11月上旬定植于冬暖大棚。采用高垄栽培,地膜覆盖,大 Reasonable arrangements crop stubble is one of the key measures to improve the efficiency of plastic greenhouse planting. In recent years, practice has proved that the following planting modes have higher benefits and can be flexibly chosen according to actual conditions. First, the winter crop cucumber - Summer beans - autumn and winter tomatoes winter stubble Cucumber Changchun needles, Xintai stab, Jinchun 4 and other low temperature, light tolerance of low-light varieties, sowing in early October, the use of black-seed pumpkin Grafted nursery, early November planting in winter warm shed. High ridge cultivation, mulching, large