How to cultivate and plant watermelon seedlings

Watermelon seedling cultivation: seed dressing with new lipid membrane, seedling cultivation in plastic film arch shed, seeds buried in soil about 2 cm deep. Apply enough base fertilizer: apply enough base fertilizer before planting, apply decomposed fertilizer 1500-2000 kg after planting, and apply compound fertilizer special for watermelon 25-30 kg. Reasonable topdressing: reasonable topdressing urea and organic fertilizer in tendril extension period and young fruit period. Control of pests and diseases: the use of Shi Baoling, Dixong, dimethoate, trichlorfon, dichlorvos and other pest control.

1. Cultivate watermelon seedlings

1. Select full seeds before sowing, choose to dress seeds with new lipid membrane, which can effectively reduce the occurrence of underground diseases and insect pests, isolate bacteria infection, and will not affect the germination and imbibition function of seeds, which is conducive to strengthening respiratory intensity and improving seed germination rate.

2, during the period can be used for seedlings in the greenhouse, and then sown to loose fertile soil, seeds buried in 2cm deep soil, and fill watering, in the middle and late seedling needs more exposure less cover, during the day exposed at night cover, 3-5 days before transplantation, can be opened all day long seedlings, conducive to the cultivation of healthy watermelon seedlings.

II. Apply sufficient base fertilizer

1. Watermelon needs a large amount of fertilizer at the growth stage, so it is necessary to apply sufficient base fertilizer before planting, which is conducive to high quality, stable yield and high yield of watermelon. 1500-2000kg of decomposed fertilizer can be applied per mu, and 25-30kg of compound fertilizer for watermelon.

2. Generally, double ditch fertilization can be carried out. At both ends of 30-40cm in the middle of the compartment surface, a ditch with a depth and width of 20-30cm is opened, and then the prepared fertilizer is applied to the two ditches, covering the soil with about 5 cm, and the seedlings are planted in the middle of the two fertilizer ditches.

3. This fertilization method will not burn seedlings and prevent excessive growth. It can also spray appropriate amount of Huawang No.3, which is conducive to the transformation of plant nutrition into reproductive nutrition, inhibit the vigorous growth of main shoots, promote flower bud differentiation, improve pollen fertilization quality, and promote watermelon to bloom more and set more fruits.

III. Rational topdressing

1. Apply sufficient base fertilizer before planting. Only 3kg urea and 200kg human excrement need to be applied during vine extension period. Watermelon is sensitive to water and fertilizer during flowering and fruiting period. If there is too much fertilizer and water at this time, it will lead to excessive nutrition of plants, which is easy to cause excessive growth and is not conducive to plant sitting melon. Therefore, when young fruits have eggs, appropriate topdressing can be carried out.

2. At the same time, combined with spraying Zhuangguatiling, it is beneficial to thicken the fruit stalk, promote the rapid development of melon body, and during the growth period, there will be no flower drop, no melon drop, no cracked melon and no deformed melon. When the watermelon sits and expands, the rhizome just extends into the two fertilizer grooves. At this time, the soil nutrients are sufficient, which can effectively improve the quality and yield of watermelon.

IV. Prevention and control of diseases and insect pests

1, watermelon damping-off disease occurs, can be in the seedling stage seedbed should pay attention to timely ventilation, and control the amount of watering.

2. Watermelon blight and anthracnose need to be planted at an interval of 4-5 years. The ditch cleaning and drainage work should be done well. If the diseased plants are found, they should be pulled out in time. 20% Shibaoling, 70% Dexong and 75% Chlorothalonil WP can also be sprayed for control respectively.

3. Aphids, yellow cucumbers, ground tigers, red spiders, etc. occur in watermelon, which can be controlled by spraying dimethoate, trichlorfon, dichlorvos and furan dan.