What are the causes of abnormal fruit and cracked fruit in watermelon planting?

During the development of watermelon fruit, due to environmental impact, improper adjustment of plant spacing, unscientific fertilizer management and other reasons, it is easy to form deformed fruits such as flat fruit, eccentric family, deformed family, pericarp, dark green or yellowish white, dark color and so on. In the process of fruit development, low temperature and dry weather will lead to fruit dysplasia and fruit deformity. When the fruit swells, when it encounters high temperature and dry weather, it is easy to cause plant physiological imbalance, the fruit can not fully absorb building materials, and thick or thin white or yellow fibers are formed from the fruit pedicle to the raw meat part of the fruit, that is, large yellow fruit, which reduces the quality of the fruit and makes it unusable. Scientific fertilization, insufficient or excessive fertilizer is easy to produce "gourd handle" fruit, the soil is dry in the early stage of fruit expansion, and abnormal fruit often appears in the late stage of excessive water supply. In the process of planting and watermelon fruit development, deformed fruits should be formed, so that the fertilizer is sufficient and uniform to avoid overnutrition.

Water imbalance will produce abnormal fruits. Whether it is insect water or artificial water, only when the three female stigmas are filled with water can the related ovaries develop well and form normal fruits. If only L or 2 pollen surfaces are given, this part of the ovary will be stimulated by pollen and develop well. The other ovary is not stimulated by hormone, which is stunted and forms collateral branches. Therefore, it is best to artificially pollinate watermelons, and scatter male pollen evenly on the heads of three female columns to reduce the occurrence of partial eclipse. Deformities and mechanical injuries caused by mechanical injuries and diseases and insect pests are mostly man-made and should be reduced or avoided as much as possible. Fruit deformity caused by diseases and insect pests, especially bracken leaf virus disease is the most serious. Its new leaves are wrinkled and twisted, its firearms are underdeveloped, it is difficult to sit up, and it is always deformed when sitting up. Anthracnose in fruits often distorts fruits.

The water quality is not good, the water content is insufficient and uneven, there are many seeds in the front of cucumber, few basic seeds, uneven nutrition supply and uneven expansion speed. That is to say, in the same melon, the surfaces of all seeds are enlarged, crisp and sweet; On the side with fewer melon seeds, the melon noodles and pieces will not become bigger, harder and less sweet. Neither temperature nor humidity is suitable. In case of fruit swelling period, early water shortage (or watering too late) or low temperature, flat watercress with flat top (small watercress), late water shortage (or early water shortage) or low temperature (such as cold current), the fruit surface of "Gourd" watermelon with swollen top and narrow shoulders will directly contact the soil, and there is no liner under the fruit surface, which leads to the fruit surface in contact with the ground being stunted. Therefore, when cucumber continues to expand, its lateral growth is greatly affected and it is deformed into Labiatae.

Artificial auxiliary water, increase water quantity, improve water quality and ensure water quality integrity. Ensure the uniform supply of fertilizer and water to prevent negligence. In order to prevent the low temperature or cold current when fruit is set, measures are taken to erect the shaped gourd, and the big head of the melon is placed on the ground, which can narrow the size difference between the upper, lower, lower and both ends of the melon. To stop the poor quality cucumber field, put a cushion under the cucumber surface in time, put the melons in order, turn them over in time and tidy them up.