Symptoms of Tomato Fertilizer In the early stage of tomato damage, there are chlorotic white or gray-white irregular spots on the surface of the leaves. As the disease progresses, the spots expand. The edge of the leaf on the leaf is grayish white, the inner mesophyll is not as green as it is, the dark green is darker, and the perforation is later. Unlike the disease, the dead spots do not expand indefinitely. Under high temperature and drought conditions, the disease develops very rapidly and the leaf margin is dry.
Control measures Tomato fertilizer damage is mainly caused by excessive application of chemical fertilizer, root damage, reduced absorption function, and affected leaves, resulting in fertilizer damage. The occurrence of fertilizer damage in tomato not only causes a lot of waste, but also affects the normal growth of tomato. Prevention and control of tomato diseases should be done in advance.
Soil testing and formula fertilization According to the different demand of fertilizer in different growth stages of tomato, soil testing and formula fertilization, avoiding the use of a single fertilizer, uniform fertilization, watering immediately after fertilization or fertilizing with water, so that the fertilizer dissolves into the soil as soon as possible, reducing The concentration of fertilizer is conducive to the absorption of tomatoes.
Adding organic fertilizers Try to reduce the amount of chemical fertilizers, increase the application of organic fertilizers, and conditionally apply biological fertilizers to organic fertilizers.
Improved fertilization method The method of layered application and full-layer deep application is adopted to integrate soil and fertilizer to avoid exposure of fertilizer to the surface.
Remedial measures Immediately after the occurrence of symptoms of fat damage, watering is usually carried out after 2 to 3 times of watering, and the plant nutrient solution such as “Tianda-2116†is sprayed to enhance the resistance of the tomato.
Author: Deming Source: Daily farmer
Control measures Tomato fertilizer damage is mainly caused by excessive application of chemical fertilizer, root damage, reduced absorption function, and affected leaves, resulting in fertilizer damage. The occurrence of fertilizer damage in tomato not only causes a lot of waste, but also affects the normal growth of tomato. Prevention and control of tomato diseases should be done in advance.
Soil testing and formula fertilization According to the different demand of fertilizer in different growth stages of tomato, soil testing and formula fertilization, avoiding the use of a single fertilizer, uniform fertilization, watering immediately after fertilization or fertilizing with water, so that the fertilizer dissolves into the soil as soon as possible, reducing The concentration of fertilizer is conducive to the absorption of tomatoes.
Adding organic fertilizers Try to reduce the amount of chemical fertilizers, increase the application of organic fertilizers, and conditionally apply biological fertilizers to organic fertilizers.
Improved fertilization method The method of layered application and full-layer deep application is adopted to integrate soil and fertilizer to avoid exposure of fertilizer to the surface.
Remedial measures Immediately after the occurrence of symptoms of fat damage, watering is usually carried out after 2 to 3 times of watering, and the plant nutrient solution such as “Tianda-2116†is sprayed to enhance the resistance of the tomato.
Author: Deming Source: Daily farmer
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