灌水抗旱是干旱季节蔬菜田间管理的一项重要措施。利用好一切可利用的抗旱条件搞好灌溉，是蔬菜生产获得优质高产的重要保证。蔬菜抗旱灌溉在具体操作时要注意“三防”。一防灌水后土壤缺氧。水是蔬菜的命根子，但水过多也有害。因为水多则氧少，而蔬菜一般不耐缺氧。有些蔬菜 Irrigation drought is an important measure of vegetable field management in dry season. Making good use of all available drought-resistant conditions for irrigation is an important guarantee for obtaining high-quality and high-yield vegetables. Vegetable drought irrigation in the specific operation should pay attention to “three defenses.” An anti-flooding soil oxygen. Water is the lifeblood of vegetables, but too much water is also harmful. Because water is less oxygen, and vegetables are generally intolerant of oxygen. Some vegetables