冬季使用温床＂五注意＂蔬菜及部分农作物实行早熟栽培，提早收获，冬季往往需要用温床育苗。为了提高育苗质量，应做到以下＂五注意＂。一、注意选择地势。冬季低温，光照短，为此，应选在背风向阳，地势高燥的地方建床，无条件的可在北面建立一个风障，以利增加光照和提... Winter use of hotbed “five note” vegetables and some crops implemented precocious cultivation, early harvest, often need to use hotbed nursery winter. In order to improve the quality of nursery, should do the following “five note.” First, pay attention to choose the topography. Winter low temperature, light is short, therefore, should be selected in the leeward sunny, high dry places to build beds, unconditionally in the north to establish a wind barrier to facilitate the increase of light and mention ...