Effect of muskmelon cracking on fruit appearance how to prevent melon cracking

Cantaloupe crack melon, physiological disease, muskmelon near the maturity of the high incidence, the disease, the melon surface appears large and deep cracks, gradually decay and deterioration, spread around. Cracked melons are completely rotten before they are ripe. Even if they are mature, the storage life is greatly shortened, the quality is reduced, the yield is reduced, and the sales and price are affected. Therefore, it is necessary to strengthen management to create an environment conducive to the growth of muskmelon and prevent cracking.

Muskmelon cracking

First, the cause of cracked melon

1. In the early stage of melon expansion, the lack of fertilizer and water caused the melon to expand slowly, and the pericarp aged and hardened. In the later stage, with sufficient fertilizer and water, the melon pulp expanded rapidly, and the peel was aging. When the flesh burst the epidermis, the melon cracked.

two。 When the melon is exposed to sunlight, the pericarp ages, hardens and shrinks, resulting in concentric tortoise cracks on the surface of the melon.

3. Late watering, large water absorption, pulp water absorption expansion, peel aging, poor flexibility, muskmelon cracking.

4. In the later stage of melon fruit setting, when the temperature is lower than 15 ℃, the tuyere opens wide and the temperature difference between day and night is large, which will cause melon cracking.

5. The lack of calcium and boron in the soil is easy to form cracked melon.

II. Preventive methods

1. A balanced supply of fat and water. According to the law of fertilizer and water demand of muskmelon, balanced supply of fertilizer and water, do not blindly water and fertilize. When fertilizing, we should apply sufficient base fertilizer to meet the needs of muskmelon growing in the early stage, and topdressing in time to meet the fertilizer requirements of muskmelon in the later stage of growth. When watering, water the melon well to promote the expansion of the melon. After watering the melon, do not pour water, especially about 10 days before picking, try not to water the melon to prevent cracking.

two。 Protect the leaves. Pay attention to protect the leaves near the melon to shield the melon from the sun, so as to prevent the melon from cracking due to the aging of the pericarp caused by sunlight.

3. Control the temperature. In greenhouse production, heat preservation measures, greenhouse temperature is kept above 15 ℃; during ventilation, a small opening is first cut, and then as the temperature increases, the tuyere is gradually enlarged; in case of a sudden cold current, cover with thermal insulation materials such as grass grass, etc., to prevent a sudden drop in temperature.

4. Spray trace elements. After sitting melon, combine watering with 0.3% calcium chloride and 0.12%-0.25% boric acid solution to spray melon leaves, spray once every 7 days, even spray 2 times 3 times, in order to supplement the deficiency of trace elements.