论文部分内容阅读
夏季温度高,土壤和植株水分蒸腾快,容易干旱,影响蔬菜生长并容易诱发病毒病,浇水可以起到补充水分和降低温度的作用,但若浇水不当,也会导致生理性病害的大发生,影响蔬菜的生产。夏季蔬菜浇水要注意以下几点:1.浇水要尽可能用冷水浇地夏季温度比较高,植株呼吸强度大,养分积累少,生长不旺,产量也低。在傍晚浇井水,有利于降低地温,增加昼夜
High summer temperatures, soil and plant water evaporate quickly, easy to drought, affecting the growth of vegetables and easy to induce viral diseases, watering can play a role in water and reduce the temperature, but if the improper watering can also lead to large physiological diseases Occurred, affecting the production of vegetables. Summer vegetable watering should pay attention to the following points: 1. Watering to be as cold as possible irrigated summer temperature is relatively high, plant respiration intensity, less nutrient accumulation, growth is not flourishing, the yield is low. In the evening pouring well water, is conducive to reducing ground temperature, increase day and night