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我国南北各地冬春季蔬菜育苗正值气温低、光照弱、光时短的季节,若遇阴雨天更影响幼苗的生育,往往是苗龄长,生长弱,素质差。为改善育苗条件,培育健壮的幼苗,近年来在改善加温设备,确定温度管理措施等方面已进行了大量的研究工作,目前已确定了一些有效的补充加温技术及设备。但
Winter and spring vegetable nurseries in the north and south of our country are at a time when the temperature is low, the light is weak, and the season of light is short. In case the rainy days affect the growth of seedlings more, the growth of seedlings is often long and weak, and the quality is poor. In order to improve nursery conditions and nurture robust seedlings, a great deal of research work has been done in recent years on improving heating equipment and determining temperature management measures. At present, some effective supplementary warming technologies and equipment have been identified. but