The Prevention and Control Techniques of Tomato Green Peel
Detox Plum, Detox Orange, Detox Hawthorn, Slimming Detox Plum, Slimming Detox Orange, Master Cleanse Detox GUANGZHOU XIANGGUO BIO-TECHNOLOGY CO., LTD. , http://www.slimmanufacturer.com
The so-called "Peipi Guo" and "Tie Guo Guo" are common names. Their scientific name is rot and rot. The specific symptoms are: browning or peeling on the surface of the fruit, individual fruits appearing dark brown and becoming hardened or showing necrotic spots. The cut fruit can be seen in the peel. The flesh of the fruit is "squeaky" and the vascular tissue of the flesh is dark brown or brown. The skin of the browned part does not turn red. It is often greenish or rust-colored. The flesh is hardened and of poor quality, and tastes no taste. First, the cause of the disease: The disease is a physiological disease depends on the degree of damage depends on the species and the local sunshine time and light intensity and soil nitrogen, phosphorus, potassium ratio, especially sunny days after sunny suddenly this kind of disease can easily occur. In addition, the physical and chemical properties of the soil and the degree of application of human excrement are also affecting the occurrence and damage of the disease. Insufficient illumination, low temperature, high humidity, insufficient carbon dioxide, high night temperature, easy to cause nutrient deficiency in tomato, partial absorption of potassium fertilizer caused by partial application of nitrogen fertilizer, especially when ammonia nitrogen is too much, it will cause the ratio of carbohydrate and nitrogen. Falling, causing plant metabolism disorders, resulting in lignification of vascular bundles and induced tendon rot, in addition to excessive soil moisture, poor soil permeability, impede the absorption of roots, plant nutrient imbalance, so that the absorption of iron decreased, the incidence of disease. Second, the solution: 1, the selection of tomato varieties resistant to peel fruit: the current production of thin fruit on the peel-shaped fruit, plant leaves not too large varieties more resistant, skin thick varieties susceptible to disease. 2, increase organic fertilizer, the use of formula fertilization techniques, should not use more ammonium, to adjust the proportion of soil nitrogen, phosphorus, potassium, and promote plant absorption and utilization of potassium. 3, in case of a sunny day after the sunny days, can not immediately remove the straw curtain. Half of the straw curtain should be uncovered, and all the straw curtains should be opened when the ground temperature reaches 15°C. This method can prevent the occurrence of green peel. 4, regular spraying of potassium dihydrogen phosphate, or other foliage fertilizer, etc., can reduce the occurrence of green peel to a certain extent. 5, other measures: increase the amount of carbon dioxide applied, use a good light transmission film, enhance light. Can effectively reduce the occurrence of peel.