How to treat Tomato tendon Rot

Tomato tendon rot is a common and serious physiological disease in greenhouse tomato. Except for the slightly diseased fruits, they have no commercial value. There were no obvious symptoms in the stems and leaves of the diseased plants. So, how to prevent and cure tomato tendon rot?

First, how to treat tomato tendon rot?

The main results are as follows: (1) choose the varieties which are not easy to get sick.

(2) reasonable close planting, timely pruning, improving ventilation and light transmission conditions, increasing light; strengthening the control of temperature and humidity, paying attention to heat preservation in early spring and late autumn, preventing temperature from being too low, preventing high temperature from overgrowing in summer, and preventing flood irrigation when watering. It is best to use infiltration irrigation or drip irrigation to prevent excessive humidity, soil consolidation, resulting in bad soil environment.

(3) reasonable temperature, fertilizer and water management to prevent the aggravation of the disease caused by adverse factors such as too high and low temperature in the greenhouse, too dry and wet soil water, unbalanced application of nutrient elements and so on. In the early and middle stages of tomato growth, we should pay attention to the control of aphids and whitefly, prevent tomato virus disease and reduce the occurrence of gluten rotten fruit. The fertilization of tomato in protected field should be light nitrogen, less phosphorus, heavy potassium and calcium and magnesium. Nitrogen, phosphorus, potassium, calcium and magnesium should be applied in combination with nitrogen, phosphorus, potassium, calcium and magnesium. In flowering, peak fruiting period and fruit expansion period, Shijiamei per mu is profitable, and Neitrode 10-15kg 2-3 times. Fertilization should be base fertilizer plus topdressing, mainly organic fertilizer and organic activated nutrition package fertilizer.

(4) balanced fertilization. Do not apply too much nitrogen fertilizer, in the full fruit period of tomato to increase the application of phosphorus, potassium and calcium fertilizer Jiamei profit, inner potassium Germany, should apply more fully mature organic fertilizer. Enhance plant resistance, prolong light time, increase chlorophyll content, apply organic activated nutrition package fertilizer Jiamei Halibao, and increase the yield of photosynthate and the amount of photosynthate transported to the fruit. Potassium, boron and other elements alone and early foliar supplement (it is not recommended to use fertilizers containing potassium and boron alone, because it will cause potassium loss, boron fixation and soil acidification, humic acid fertilizers Jiamei bonus and inner potassium can be used to activate the soil and promote nutrient absorption), and Jiamei platinum and gold spots can be sprayed on the leaves.

(5) to avoid continuous cropping for many years, the rotation system should be implemented to alleviate the imbalance of soil nutrients.

(6) for tomatoes cultivated in greenhouse, heating and heat preservation measures should be taken when the temperature in the greenhouse is lower than 10 ℃, and ventilation and cooling should be carried out when the temperature in the greenhouse is higher than 30 ℃. The plastic film with strong light transmittance should be selected in the greenhouse film, and the tomato in the greenhouse had better be cultivated in wide rows to increase the light transmittance between rows and promote photosynthesis. The greenhouse also needs to apply more carbon dioxide gas fertilizer to meet the needs of photosynthesis.

(7) timely prevention and treatment, when the disease is found, 0.2% glucose and 0.1% potassium dihydrogen phosphate mixture can be sprayed immediately to increase the content of sugar and potassium in leaves and reduce the harm.

II. Conditions for the occurrence of tomato gluten rot

The main results are as follows: (1) Brown tendon rot mostly occurs under low temperature and low light, and the poor permeability of plants is more conducive to the occurrence of the disease. The density of overwintering cultivation must be reasonable, at the same time, reasonable pruning should be done to improve the light transmittance among plants.

(2) when the soil moisture is too large and the soil oxygen supply is insufficient, it is beneficial to the occurrence of the disease.

(3) when the amount of fertilizer application is too large, especially when the application of ammonia nitrogen is too much, the potassium fertilizer is insufficient or the absorption of potassium is blocked, the disease occurs seriously.

(4) the disease may be induced by the application of non-fully mature farm manure, close planting, seedling planting and strong coring.

(5) leukotypic gluten rot is related to tobacco mosaic infection. Varieties resistant to this virus disease should be selected.

Tomato tendon rot is mainly prevented, pay more attention to fertilization when planting in the early stage, and timely treatment measures should be taken if the disease is found.