3月份的油菜价格在济南、天津、北京等地仍是居高不下,可利用塑料棚多层覆盖生产,在3月上旬上市,或用不加覆盖的单层棚生产,在3月下旬上市,经济效益都不错。实际上是在大棚主作蔬菜定植前抢收一茬油菜,因此,对春淡季蔬菜供应很起作用。选择良种油菜品种宜选择耐寒、高产和不易抽薹的优良品种五月蔓等。播种、收获期本茬油菜鲁 March rape prices in Jinan, Tianjin, Beijing and other places is still high, the use of multi-storey plastic shed cover production, listed in early March, or uncoated single shed production, listed in late March The economic benefits are good. In fact, a crop of rapeseed is harvested before planting in the greenhouse. Therefore, the supply of vegetables to the spring is very effective. Select varieties of rapeseed should choose cold, high yield and not easy to bolting the fine varieties of May and so on. Sowing, harvesting stubble rape Lu