Field management after replanting melons

1, fertilizer and water management

Because melons have lower temperatures at the time of colonization and less water transpiration, attention should be paid to keeping warm and controlling watering after planting water. After planting until the first female flower before flowering, adhere to the soil to see dry see wet, usually 7 ~ 10d (days) pouring 1 water, sprinkle water too much, easy to form plant leggy, postponed results.

Do not spray water during the flowering period to prevent overspray formation and fruit drop. After the fruit is set, sprinkle more water as appropriate, usually 5 to 7 days (days), pour 1 water, stick to see the soil dry see wet. Watering was stopped 10 days before harvest (days), and no drought or watering occurred during the harvest period in order to improve the sugar content of the fruit as much as possible.

After easing the seedlings, the cultivator is divided into secondary cultivars and sprayed with the plant growth regulator Shuofeng 481 (natural alizarin lactone) to promote the healthy growth of the wheat seedlings. In the period of extension, ternary compound fertilizer with higher nitrogen content can be applied in conjunction with spraying. In the expansion stage of melon, 15kg of potassium sulfate and 20kg of potassium dihydrogen phosphate are applied per 667m2, and nutritious supply of melon is added to promote rapid fruit enlargement. In the growing season, 0.2% potassium dihydrogen phosphate can also be sprayed for 2 to 3 times to promote plant growth and fruit development.

2, pruning fruit

Muskmelon is dominated by Sun Man Guagua, which uses multiple vine pruning methods. When the main vine leaves are picked, they will be picked again when the vine grows to 7-8 leaves to promote the growth of Sun vines and flowering. Sun vines in the 4th section of the vine vine should be removed early. Leave melons, leaving 6 to 8 fruits per plant. After the young melons are sitting on, they will then take heart to Sun Man to promote the delivery of nutrients to the young melons and promote the expansion of the young melons. After sitting in the melon, obeying its beauty grows no longer pruning.

3, artificial pollination

Muskmelon is a dichogamous crop of the same sex. Because of the low temperature in the early spring and the lack of insects, artificial pollination is generally required to improve the fruit setting rate of melons. After the female flowers were open, when the temperature rose to 20°C in the daytime, male flowers that were open on the day were selected for artificial pollination. General pollination

After 7 days (days), when the young larvae reach the egg size, the melons are selected to remove the remaining flowers and young larvae.

4. Pest control

Use the combined prevention, control and skills of agriculture, physics, and chemistry to minimize the use of low-toxicity, high-efficiency, and low-residue chemicals to avoid the formation of phytotoxicity and environmental pollution. Use high ridge culture to cover up the mulch and try to prevent cultivation in low-lying areas. Hanging yellow and frequency-vibration insecticidal lamps in the field to trap and kill pests.

The main diseases of melon are powdery mildew, wilt disease, epidemic diseases, etc. Powdery mildew can be controlled with 2% antimycotic 120 (Nongkang 120) water 200 times or 1% Wuyimycin water 100 ~ 150 times; withered The disease can be controlled with 50% carbendazim WP 600 times or 50% benomyl WP 1500 times; the disease can be controlled with 72% urea MnZn (Kelu) WP 800 times. Every 7 to 10 days (days), spray 1 to 2 or 3 times.

The main insect pests are aphids, whitefly, etc. The aphids can be controlled with 10% imidacloprid WP 2000 times solution or 40% dimethoate EC 1000 times solution; whitefly can be used with 10% buprofezin (Pentacloprid) EC 1000 times Prevention.

5, harvest

After 25 to 30 days (days) after general pollination, the fruit matures and can be harvested when the melons are harvested. Try not to hurt the fruit when harvesting, to avoid affecting the value of goods and economic benefits.

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