近年来,随着重茬日益严重,土壤养分失调情况加重,各种生理性问题也日渐增多。尤其是到了寒冬或盛夏季节,温度过低或过高会严重影响蔬菜正常生长,出现多种生理性问题,如畸形花果、日灼病、青皮果、早衰、黄叶、裂果多、药害等。打好基础提高蔬菜抗逆性苗期是蔬菜栽培管理中最关键的一个阶段,需要为后期的开花结果打好 In recent years, with the increasingly serious stubble, soil nutrient imbalances aggravate, a variety of physiological problems are also increasing. Especially in the winter or mid-summer, the temperature is too low or too high will seriously affect the normal growth of vegetables, there are a variety of physiological problems, such as deformed flower, sunburn, green skin, premature aging, yellow leaves, cracked fruit, Wait. Lay a good foundation to improve the resistance of vegetables Seedling stage is the most critical stage of vegetable cultivation and management, need to lay the post-flowering results