In the greenhouse tomato cultivation, it is very important to promote the orderliness of the fruits, reduce the inferior fruit, and improve the quality, which is directly related to the level of economic benefits. How to do this? The key is the application of integrated management. Practice shows that if you do the following four measures, you can achieve the goal.
One, lose "pawn" security "car." To learn from the principle of not leaving peppers in the cultivation of peppers, remove the first or two flowers or fruits with the earliest flowering on the flower spikes to reduce nutrient consumption and accumulate sufficient nutrients to supply other flowers and fruits above. The fruit can be the same size, maturity is basically close.
Second, spend more, spend less, choose the best. For each flower on the opening of the flower to be more points, generally leave 4-5 high quality fruit per panicle, must point to 8-9 flowers, wait until the young fruit diameter is about 1 cm long, and then choose to stay 4-5 fruits of similar appearance and size, and then eliminate large fruits, deformed fruit, defective fruit and pests and fruits. When it matures, the fruit, whether it is a head or a uniform appearance, can be sold at a high price.
Third, promote coloring before maturity. When the tomato fruit matures to 89, use 40% ethephon at a concentration of 100-200 times, and use a brush to point the apical branch at the spike above the pedicel at about 5-8 mm to facilitate early maturation and coloration. ,Increase production. But do pay attention to the following: First, do not point at the "joint" position (ie, the stem and branch junction), otherwise it will cause serious fruit drop phenomenon; second, do not spray ethephon or dip in the fruit. On the other hand, it will cause premature aging of the plant, but also affect the fruit's commercial nature, and the ripened fruit intolerant to transport; Third, the concentration of ethephon can not be too high, the time can not be too early, otherwise it will make the fruit premature, causing Reduced production and revenue, and not resistant to storage and transportation.
Fourth, topdressing potassium fertilizer. Tomato lacking potassium is poor in coloring, prone to tendon rot, and low in yield. Therefore, after the point of flowering, when the diameter of the fruit exceeds 3 cm and begins to enter the inflating stage, as the potassium fertilizer is applied to the water, it is applied every time. - 20 kg of potassium sulfate, can increase the weight of the fruit, no hollow fruit, taste good, bright color.
Having grasped the above four management measures, the tomato planted is not only of high quality, tidy and tidy, but also of high yield.
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