The appearance of tomato face disease in tomato is closely related to the unfavorable conditions such as temperature and nutrient supply. Control methods: 1, the application of humic acid fertilizers or biological fertilizers or fully cooked organic fertilizer, pay attention to the proportion of nitrogen, phosphorus, potassium should be coordinated, less nitrogen fertilizer, appropriate increase in the amount of potassium fertilizer, especially in fruit growth and development . 2. Keep the soil dry between the soil and “eat less mealsâ€. 3, pay attention to increase the temperature of the shed, and to ensure a certain temperature difference, but not too large, the general daytime shed temperature control at 30 °C, at night to 12 ~ 18 °C is appropriate. 4, the plant density should not be too large, we must ensure that the shed ventilation and light transmission, so that the chance of plant rot tend to decrease. 5, can spray boron, calcium compound fertilizer. Non-Medical Face Mask,Disposable Face Mask,Disposable Medical Face Masks,Non Sterile Medical Masks Henan Xianghe Medical Materials Co., Ltd. , https://www.xiangheweicai.com