Drain the dark water in the ditch when planting, so as not to lower the ground temperature. If the planting is late, the temperature in the shed is higher, and the water planting seedlings can be placed to meet the water requirement of the roots, promote the hair roots, increase the relative humidity of the air in the shed, and increase the high temperature resistance of the seedlings during the shed slow seedling period. After 5 to 7 days after planting, the seedling water is poured to ensure the water requirement of the roots before the roots are placed. During this period of lack of water, the leaves at noon wilting gradually increase, affecting the hair; but watering ( regardless of the amount of water ) is likely to cause excessive vegetative growth, affecting hair roots and root melon development, serious melon. After the seedling water is slowed down, it is necessary to control the water to promote the root control. If the mulch is not covered, the cultivating and loosening soil should be strengthened to ensure the temperature. After the root melon is sitting, it will enter the period of meloning. The soil should be kept moist, the water supply and nutrient supply should be ensured, and the principle of “small water and water pouring†and “water and fertilizer should be applied†should be mastered to manage the water and fertilizer, and the root melon water should be used for topdressing. When pouring seedling water, it is strictly forbidden to apply quick-acting nitrogen fertilizer to prevent the seedlings from growing and growing. In the early stage of melon, the application of ammonium nitrate is 15 to 20 kg per mu , or 7.5 to 10 kg of urea or 10 to 15 kg of diammonium phosphate . In the middle of the melon, the application of potassium fertilizer, such as potassium sulfate, is 10 to 20 kilograms per mu per acre ; in the late stage of the melon, the greenhouse should be released with a large amount of water, and the ammonium bicarbonate is about 20 kilograms per mu . The above fertilizer amount is the amount of topdressing fertilizer for “one clear and one turbid†( ie, one clear water, one with fertilizer water ) . If it is managed according to “water and water with fertilizerâ€, the above topdressing amount should be halved. Foliar topdressing can also be used for foliar application, such as sugar nitrogen solution (1% sugar + 0.2% to 0.5% urea + 0.2% to 0.3% potassium dihydrogen phosphate + 0.3% vinegar ) , spray Shibao, high Meishi, Green Wind 95 , double-protected plant nutrients, photosynthetic micro-fertilizers, and trace elements can promote fertility and promote early maturity and high yield.
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Watering should be taken at noon, afternoon, evening or rainy days, and should be carried out on a sunny morning or morning. After the water is warmed up, it is necessary to release the air at noon, and spray it in the afternoon or smoke the shed in the evening to control the disease. If you find that most of the plants have temporary empty space and no melon, you should control the water prevention and control, and then transfer to the normal watering management after sitting. Otherwise, it will still be watered in the case of empty space, which will cause madness and lead to serious melons in the upper node. Watering should be carried out before picking melons, so that the water can attack more melons, which is beneficial to increase the weight of melons and increase the freshness of melons, and avoid the madness caused by empty watering, if the plant growth is weak or If there are too many melons, it is advisable to water the melons after picking the melons, so that the water can be attacked and the relationship between the fruits can be coordinated.
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Female-type varieties such as Zhongnong No. 5 or dense-thorn type planting plants are prone to topping. After planting, there is no seedlings. It is advisable to use water and fertilizer to attack and promote melons to ensure the coordination of fruit and fruit, and to obtain early maturity and high yield. Otherwise, if you control the water seedlings, there will be problems such as not growing the tree and turning the cucumbers.
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