Early spring gift watermelon early cultivation method in a large greenhouse

By adopting a two-stage seedling system and meticulous management, the problem of low-temperature stress on early spring gift watermelons in large arched greenhouses was solved, enabling earlier market entry and efficient growth, thus improving fruit quality and planting efficiency.

CN122397575APending Publication Date: 2026-07-17聊城市农业科学院
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
聊城市农业科学院
Filing Date
2026-05-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the cultivation of early spring gift watermelons in large arched greenhouses, low temperature stress leads to slow root development and weak growth in the seedling stage, making it difficult to market them at the same time as those grown in winter-warm greenhouses. This results in weak market competitiveness and reduced planting benefits. Existing heating equipment has high energy consumption and unstable temperature control, which affects fruit quality.

Method used

A two-stage seedling system is adopted, which combines small arched greenhouse environmental control and refined management. This includes selecting cold-resistant watermelon varieties, building small arched greenhouses, using LED supplemental lighting and geothermal wires to control temperature and humidity, carrying out grafting seedling cultivation and pre-treatment before transplanting, so that the seedlings can grow rapidly in the small arched greenhouses and avoid low temperature stress. After transplanting, staged temperature and humidity management and water and fertilizer regulation are carried out.

Benefits of technology

This allows gift watermelons grown in large arched greenhouses to be marketed simultaneously with those grown in winter-warm greenhouses, shortening the growth cycle, improving fruit quality and yield, reducing cultivation costs, increasing planting income, and meeting market demand.

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Abstract

The application provides a large-arched-shed early-spring gift watermelon promoting-early cultivation method, and belongs to the technical field of watermelon cultivation; comprising the following steps of pre-seeding preparation, primary seedling, secondary seedling, pre-planting pretreatment, planting, post-planting management and the like; the key growth stage of the gift watermelon from the seedling stage to the pre-stretching stage is transferred from the whole environment of the large-arched-shed to the small-range controllable seedling small-arched-shed, the influence of the low-temperature stress of the early-spring large-arched-shed is effectively avoided, the planting period does not need to be delayed, the large-arched-shed gift watermelon and the winter-warm greenhouse watermelon can be marketed at the same period, the marketing is 18-25 days earlier than the traditional large-arched-shed cultivation mode, the early-spring high-price market is occupied, and the planting income is greatly improved; after the cultivation of the robust large seedlings, the root system is developed, the stress resistance is strong, and there is no obvious seedling recovery period; meanwhile, the low-temperature resistance of the large seedlings is strong, the freezing injury and the dead seedling risk caused by the early-spring reverse spring cold, continuous cloudy, rainy and snowy weather are greatly reduced, and the planting stability is obviously improved.
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