A kind of seedling raising method of watermelon long-season cultivation

Abstract

The invention discloses a seedling cultivating method for the long season cultivation of watermelons, and relates to the technical field of watermelon cultivation. The method comprises the steps of (1) selecting a stock variety and a small fruit type scion watermelon variety suitable for being used in the long season cultivation; (2) cultivating a stock seedling and a scion seedling timely, grafting by adopting a double-root-cut-grafting method when the first main leaf of the stock seedling appears till the first main leaf just spreads, and more than one third of the cotyledon of the scion seedling turn green till the one third of the cotyledon spreads, then carrying out cuttage in a float breeding disc filled with a matrix; (3) floating a grafted seedling in a seedbed with clear water, healing and root growing; and (4) injecting a nutrient solution into the seedbed after the grafted seedling survives, and floating the grafted seedling in the nutrient solution for survival post-treatment. The watermelon seedlings cultivated by adopting the method grow strong are uniform, have extensive root systems and the strong vitality, are difficult to wane early, and are suitable for being used in the long season cultivation.

Description

technical field [0001] The invention belongs to the technical field of watermelon cultivation, and in particular relates to a seedling raising method for long-season cultivation of watermelons. Background technique [0002] Watermelon ranks fourth among the top ten fruits in the world. my country is a big producer and consumer of watermelon. The annual harvest area of ​​watermelon reaches 2.2125 million hectares, and the production area and consumption account for more than 1 / 2 of the world's total (Sun Xiaowu, Zhang Xian, Ma Yue, et al. Research and Application of Seedless Watermelon in China. Beijing: China Agricultural Press, 2009). Watermelon, as an important high-efficiency economic crop, plays an important role in the adjustment of planting industry structure in my country and the promotion of farmers' wealth and income. [0003] The watermelon stem can produce adventitious vines at every node, especially the adventitious buds latent at the base of the watermelon plant...

AI Technical Summary

Problems solved by technology

Its defect is that the healing and rooting stages of grafted seedlings have strict requirements on environmental conditions. If the temperature and water conditions in the healing and rooting stages are not suitable or the management is slightly negligent, the survival rate is low; if the cultivation medium is rich in nutrients, Grafted seedlings are not easy to root after cutting, which affects the survival rate; if the cultivation medium is poor in nutrition, it will affect the growth of grafted seedlings

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