夏季蔬菜,当出现38℃的异常高温时,不但其生长发育会受到抑制,而且还会不同程度地发生高温热害,对蔬菜的产量和品质带来严重影响。对蔬菜热害要重在预防,除选择适合本地栽培的耐热、抗病能力较强的蔬菜品种,搞好菜地水源环境、排灌设施建设外, Summer vegetables, when the abnormal temperature of 38 ℃, not only its growth and development will be inhibited, but also to varying degrees, heat damage occurs on the yield and quality of vegetables have a serious impact. The emphasis on the prevention of heat damage to vegetables, in addition to selecting suitable for local cultivation of heat-resistant, disease-resistant vegetables varieties, improve vegetable water environment, irrigation and drainage facilities,