Causes of bad fruit setting of watermelon

Watermelon is favored and loved by many people in our country. The market demand is getting bigger and bigger, and the planting area is getting wider and wider. However, many novices encounter the same problem in the planting process, that is, poor fruit setting, which will seriously affect the yield of watermelon and the income of farmers. What is the cause of bad watermelon fruit setting? Why is watermelon fruit bad? Let's take a look below!

1. Temperature

Watermelon is a male and female double flowering crop, using bees and other insects for pollination, but if it encounters rainy and low temperature weather during flowering, it will affect the pollination and fertilization of watermelon, making watermelon poor fruit setting. If cultivated in the open air, rain drops on the style will cause the pollen to absorb water and break, making it impossible to pollinate. The high temperature environment will cause watermelon vines to grow wildly, affecting the nutrition and moisture of the fruit, resulting in poor fruit setting.

2. Light

Watermelon is a very watermelon fruit that requires a lot of light intensity and time throughout its growing period from sowing to ripening. If the light is too weak, it will make watermelon internodes long, leaves big and thin, resulting in unable to carry out strong photosynthesis, finally because of insufficient nutrition and fruit drop, fruit final sugar content will also decline, poor quality.

3. Moisture

Watermelon drought resistance is particularly strong, it needs to grow in the environment of relatively dry soil and air, if the relative temperature in the air is higher than 60%, watermelon growth will be small, fruit set rate will decrease, easy to produce diseases and insect pests. However, less than 50% will affect the growth of watermelon, pollen germination will also have a certain harm, soil water holding capacity needs to be maintained between 65%-75%.

4. Density

The planting density should not be too dense or too thin. Too dense will cause each watermelon to absorb nutrients evenly, which will not ensure that all watermelons can grow and develop normally, or even develop abnormally. Moreover, the permeability in the field is too poor, which seriously affects the growth of underground leaves and stems and causes poor fruit setting. Too thin will make watermelon nutrition surplus, lead to watermelon tiller growth, affect normal fruit development.

5. Nitrogen fertilizer

In order to increase the yield and quality of watermelon, many friends will use excessive nitrogen fertilizer, but it will backfire. Because although nitrogen fertilizer promotes growth, excessive fertilization will cause watermelon vines and leaf stems to grow excessively, plant vegetative growth and reproductive growth imbalance, fruit malnutrition, resulting in poor fruit setting or even flower drop.

Well, these are the main reasons for bad watermelon fruit set. Of course, there are more than these, for example, there are diseases and insect pests, etc., if not timely prevention of watermelon diseases and insect pests or treatment of sick melons, diseases and insect pests harm the growth of melons and fruits, will also cause watermelon flowers and fruits bad situation. Therefore, I hope that everyone will pay more attention at ordinary times to minimize or eliminate this situation.