Open field cultivation technique
The cultivation of squash and squash is large in the area of ​​North China. Generally, in mid-March, seedlings are planted in wind-barrier impotence or plastic sheds. In mid-April, they are planted in open fields and harvested in early June. This cultivation method is more than 20 days longer than the morning market of melon, which supplements the blank period of melon supply, and the economic benefit is significantly higher than that of winter melon cultivation.
The seedling period of open field cultivation is from March to April, and the outside temperature is high, but occasionally frost will appear at night. Therefore, in the seedbed should also strengthen the temperature management, pay attention to ventilation and cooling during the day, to prevent high temperature, and be careful not to suffer from frost at night. 7 to 10 days before planting, gradually increase the ventilation, and finally remove the plastic film, so that the seedlings are in the open conditions, enhance their adaptability. Other matters of nursery management are cultivated early in the spring.
When the seedling age is 30 to 35 days, 3 to 4 true leaves, the outside night cream has been outdated for colonization. Field management and other reference spring ripening cultivation.
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