冬春季蔬菜,常因防寒措施不力而导致较大的经济损失。现介绍以下防寒措施: 1.中耕培土 冰冻前结合中耕,将土墙于蔬菜根际旁,既可疏松土壤,又可保护根系,增强根系活力。中耕深度以7—10厘米为宜。 2.合理施肥 幼苗期适当控制氮肥用量,切忌偏氮素化肥,以免植株生长柔嫩,抗寒力差。追肥要 Winter vegetables, often due to poor measures to prevent cold caused greater economic losses. The following cold-proof measures are introduced: 1. Cultivated earth frozen before the combination of cultivation, the soil wall next to the vegetable rhizosphere, both loose soil, but also protect the root system and enhance root activity. Cultivation depth of 7-10 cm is appropriate. 2. Proper fertilization Seedling appropriate control of nitrogen fertilizer, avoid partial nitrogen fertilizer, so as to avoid plant growth, cold hardiness. Top dressing to