Tomato hollow fruit is a physiological disease, mainly manifested as poor placental development, peel and placental tissue separation, less flesh, seed cavity becomes hollow, the surface of the fruit has ribs, larger body, but lighter weight, juice Flavour. Professor Cheng Zhihui of the College of Horticulture, Northwest Agriculture and Forestry University believes that empty fruit has a certain influence on the yield and quality of the fruit. It is of great significance to prevent the occurrence of empty fruit in the spring. cause Improper selection of varieties Generally, early maturing varieties have a small number of ventricles, are prone to empty fruit, and late-maturing varieties have more ventricles, which can prevent the occurrence of empty fruit. When the same variety was grown in winter greenhouse and early spring, the fruit rate of tomato cavity was high; in autumn and winter and late spring, the fruit rate of tomato was low. If bad weather affects the tomato after flowering and setting, if it encounters continuous rain and snow, the light is insufficient, photosynthetic products are reduced, and the internal nutrient supply of the fruit is insufficient, resulting in incompatibility between skin growth and pulp growth, and easy formation of empty fruit. The improper management of fertilizer and water after watering and excessive fertilizer production, excessive nutrient growth, or the late stage of growth and the results of fertilizer and water can not keep up, leading to nutrient deficiency are easy to form empty fruit. Inappropriate application of growth hormone spraying hormones two days before flowering, rapid skin development, placental dysplasia, resulting in the formation of empty holes in the sub-house close to the peel, the concentration of fruit hormones is too large to use or in cloudy snow weather can also cause empty fruit. Prevention Select the appropriate varieties generally should choose the middle and late-maturing fruit-type varieties, large fruit-type varieties of ventricle number, fruit inside the partition more, should not produce empty fruit, such as hair powder 802, good powder 15 and other varieties. Improving environmental conditions Adjusting the lighting and temperature of winter sheds is an important condition for ensuring good fruit development. It is necessary to uncover the sheds in time according to the weather conditions, and do a good job of regulating the temperature of the light. Warming and supplementing the light can be used to create fruit growth and development. Suitable conditions. General requirements of the temperature in the greenhouse 20 ~ 27 °C, night temperature 8 ~ 14 °C, daylight hours and scattered light exposure time of not less than 6 hours, can effectively prevent the occurrence of tomato empty fruit. Strengthen the management of fertilizers and fertilizers Use the formula fertilization technique on the use of fertilizers, increase the application of organic fertilizers, the chemical fertilizers should have a reasonable mix of nitrogen, phosphorus, and potassium, and avoid using simple nitrogen fertilizers. At the same time, it is necessary to determine the amount of watering and the number of days between different growth periods and soil moisture conditions to ensure water supply. Proper use of plant growth regulators Proper use of plant growth regulators at concentrations and times can help prevent empty fruit. Canned Pineapple Slices In Syrup Canned Pineapple Slices In Syrup,Pineapple Slices In Syrup Canned,Pineapple Slices Canned,Pineapple Slices Tin ZHANGZHOU TAN CO. LTD. , https://www.zztancan.com