The more summer melon, the "split fruit" is often caused by improper cultivation. Especially in July - August , after the drought, it is easy to produce cracked fruit, which affects the appearance of the fruit and affects the quality and yield of the fruit. It is the majority of growers. One of the headaches. The author combines some materials and experience to analyze and discuss this issue.
First, the reason for cracking fruit:
( 1 ) High temperature effects. From July to August , the fruit that grows on the surface of the melon in the west melon, due to the long sunshine time, causes sunburn, causing the physiological drought of the melon and fruit to produce cracked fruit.
( 2 ) The water supply is uneven. During the dry season, the transpiration of plants and soils increased, and the peels shrank, but the flesh grew faster and caused cracking. Especially in the case of heavy rain or long-term rainy weather, the fruit is rapidly inflated by the roots absorbing a large amount of water, and the peel and flesh are unbalanced, and the peel can't resist the pressure of the pulp tissue to expand and crack.
( 3 ) Lack of nutrients. In particular, potassium deficiency, fruit skin is thin and easy to cause cracking.
( 4 ) Variety characteristics. Anything that is thin and brittle is easy to crack. The fruit with thick peels has fewer cracked fruits. Generally, the top of the fruit is thicker than the fruit of the fruit stem, and the top is easy to crack.
( 5 ) Cracking of other plants, such as tomatoes and eggplants, is also related to the above reasons.
Second, prevention measures:
( 1 ) Select anti-cracking varieties, avoid the rainy and dry seasons in the results period, and reduce the occurrence of cracking.
( 2 ) Adding decomposed organic fertilizer or bio-organic fertilizer to increase soil water retention and water permeability, so that the soil water supply is uniform.
( 3 ) Watering in time in high temperature season, reducing surface temperature and reducing water evaporation; timely drainage in rainy weather.
( 4 ) Spray foliar fertilizer: such as humic acid liquid fertilizer and acid liquid fertilizer, or "guazu sour 2116 ". According to the development of melon, increase the dosage. In order to increase the thickness of the melon, enhance the toughness and fruit weight, reduce cracking.
( 5 ) Control pests and diseases in a timely manner.
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