Why do tomatoes have empty fruits? How to prevent it?
The tomato is sweet and sour, which is what we call tomatoes. Sometimes we go to the market to buy tomatoes, we will buy a hollow, and taste bad, so this is the empty fruit of tomato. For farmers who grow tomatoes, this phenomenon is definitely not going to happen, but in general, planting tomatoes in greenhouses can easily cause empty fruits. What should we do? We can learn together. Reasons for tomato hollow fruit 1. Improper selection of varieties Generally, the number of ventricular chambers of early-maturing varieties is small, and voids are easy to occur; the number of ventricular chambers of late-maturing varieties is high and it is not easy to occur. According to the survey, the same varieties, the tomatoes cultivated in the greenhouse in winter and spring are higher than the autumn or late spring. 2, bad weather In the fruit expansion period, in the case of cold weather, low temperature, lack of care, tomato roots are cold and tight, root activity is reduced, water absorption is poor, in the short-term lack of water and nutrient supply, it is easy to appear local fruit Less meat. 3, improper use of hormones In the winter and spring, in order to prevent the low temperature from falling, the fruit setting rate is increased. In the flowering stage, the plant growth hormone is usually used for treatment. If the concentration is too high or the treatment is young, the inflorescence is stimulated by hormones, and the young fruit is poorly developed. It is easy to cause ovary voids. 4. Improper cultivation measures Excessive nitrogen fertilizer causes plant growth, or soil is poor, low temperature, insufficient light, excessive irrigation leads to weak growth, or excessive fruit retention, resulting in insufficient nutrient supply, can lead to the formation of empty fruit. How to prevent empty fruit? 1. Reasonable selection of varieties According to the different mouthwash and time of market in the greenhouse, the mid-late maturity varieties should be reasonably selected. In the winter, you need to do a good job in planting these tomatoes to avoid empty fruits! 2, strengthen lighting management In the middle and late stages of tomato growth, it is necessary to properly smash and pick leaves, enhance light and enhance ventilation. Usually, after harvesting the fruit on the branch, the side branches located below it should be destroyed in time to ensure the nutrient supply of the fruit branch, and all the leaves under the result branch are removed. The leaves on the ears are not removed to ensure that the upper layer is well developed. If the lighting is insufficient, the light can be compensated manually. 3. Strictly control the temperature The daytime temperature in the greenhouse is controlled at 25°C-30°C and 15°C-20°C at night to avoid the growth of the seedlings. Tomato is sensitive to temperature during flowering, especially 5 days before flowering and 3 days after flowering. Below 15 °C or above 30 °C is not conducive to flowering and pollination. In the result period, the daytime temperature should be controlled at around 25 °C, and at night at around 15 °C. 4. Rational administration of hormones When flowering results, it is necessary to increase the ability of pollination and fertilization as much as possible to form seeds, and artificial pollination can be carried out under conditions. On the day of flowering or 1-2 days before and after flowering, according to the temperature conditions, usually spray 15-20 mg / kg of anti-fallin to avoid fruit drop. 5. Scientific water and fertilizer management Watering the greenhouse tomatoes in winter, the water temperature must be increased by 10 °C or more in advance, and the water can be temporarily stored in the corner of the greenhouse to facilitate warming. Under the premise of ensuring normal growth, water control is the main. Before flowering, the soil maintains a moderate degree of moisture, and the soil moisture content is 65%-75%. In the result, the soil should be kept moist, and the soil moisture content is 75%-85%. When the tomato grows to the size of the walnut, it starts to be watered and fertilized, and the organic fertilizer or compound fertilizer can be applied with the water. After that, depending on the growth and meteorological conditions of the plant, a fertilizer is added to the fertilizer. The base fertilizer is usually applied with 4000 kg of decomposed piled manure, 40 kg of compound fertilizer and 30 kg of superphosphate. The top dressing should be applied thinly before the fruit is placed, and the fruit should be applied after the fruit is placed. The above is the reason and preventive measures for the tomato hollow fruit. The farmers who grow tomatoes can forward the collection and deal with the phenomenon of empty fruits in the tomato in time. I hope to help you. For the wonderful pictures and popular comments on the tomato hollow fruit, you may be interested in the following recommended content, welcome to read. Snacks usually refer to the food eaten outside the time point of three meals a day. Under normal circumstances, in people's life, except that three meals a day are called dinner food, the rest are called snacks. Canned fruit is a healthy snack. 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