Soil testing formula fertilization. According to 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, Conducive to the absorption of tomatoes. Add organic fertilizer. Minimize the amount of chemical fertilizer, increase the application of organic fertilizer, and conditionally apply the biological fertilizer to organic fertilizer. Improved fertilization methods. Stratified administration, deep full-thickness application of the method to make fusion soil and fertilizer, the fertilizer avoid exposure surface. Remedy. Immediately after the occurrence of symptoms of fat damage, watering should be carried out. After 2 to 3 times of watering, the fertilizer can be removed, and “Tianda-2116†is sprayed to enhance the resistance of the tomato.
Water quality chlorophyll content refers to the concentration of chlorophyll in water. Chlorophyll is a green biopigment that widely exists in plants, algae and some protists and is a key molecule in photosynthesis. The chlorophyll content in the water body can reflect the biomass in the water body and the health of the ecosystem. High chlorophyll content usually indicates eutrophication of the water body and may lead to eutrophication phenomena such as cyanobacterial blooms and hypoxia. The online chlorophyll analyzer adopts the advanced principle of fluorescence method, which can reduce the influence of stray light and has excellent repeatability and stability. RS485 digital interface, supports Modbus protocol, the Chlorophyll Sensor adopts an environmentally friendly design, with an automatic cleaning brush, and the cleaning time and interval can be set on the Chlorophyll Controller. Chlorophyll analyzers are of great significance to the protection of water environments and ecosystems. Daruifuno online chlorophyll meter is used for measuring the chlorophyll a in water, it is widely use for surface water monitoring.
Chlorophyll Analyzer,Chlorophyll Meter,Fluorescence Sensor,Chlorophyll A Sensor Suzhou Delfino Environmental Technology Co., Ltd. , https://www.daruifuno.com
The occurrence of fertilizer damage in tomato not only causes a lot of waste, but also affects the growth of tomato. Prevention and control of tomato diseases should be done in advance. 
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