How to do watermelon seedlings
In the seedling stage and after the colonization, the watermelon was in a state of stagnant growth. The growth of the seedlings was small, the leaf spreading was slow, the leaf color was light, and the original cotyledons and true leaves turned yellow. The roots are yellow, even brown, and the new roots are few. Even if the conditions are right, the recovery is very slow and seriously affects the yield of the watermelon. Remedial measures are as follows.
Reduce field humidity Humidity is too large, root development is hindered, respiratory function is poor, and absorption of nutrients is small, resulting in a frozen seedling. It is necessary to promptly eliminate stagnant water in melon fields, remove moisture in cultivators, and promptly restore growth.
The soil of cultivating tillage soil is heavy, the soil compacted, and the air permeability is poor. To select a sunny day for cultivating loose soil, the cultivator has a depth of about 10 cm. Generally, two or more cultivators are used to improve the soil environment, raise the ground temperature, promote root growth, and enhance absorption.
Supplementary nutrients can be applied to the roots of watermelon ash, spreading about 100 grams per plant, can increase the temperature, protect the seedlings. After cultivating loose soil, apply 0.2% boron fertilizer solution and 0.3% urea solution to the root of watermelon. Can also spray 0.3% -0.4% potassium dihydrogen phosphate solution, is conducive to melon seedlings absorption, so that the frozen seedlings can be eased.
Spraying regulators may be selected from the group consisting of gibberellin and other plant growth regulators to spray on the leaves, spraying once every 7-10 days, and continuously spraying 2-3 times to promote the growth of seedlings.
50% carbendazim or 70% thiophanate-methyl can be used for disease prevention and pest control to prevent and treat various fungal diseases of watermelon. Application of poisonous soil and poisonous baits trap and kill underground pests. Ensure the normal growth of seedlings.
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