Reasons Why Winter Melon Does Not Grow New Roots and Control Measures

Winter melon is not only eaten as a vegetable, but can also be made into many candies and snacks, the most common of which is winter melon candy, and because winter melon has strong adaptability, it is grown in all major regions of our country. During the process of growing winter melon, the situation of not growing new roots often occurs, which makes many growers worried sick, so what causes winter melon not to grow new roots? Are there any control measures? Let's take a look together on Qinnongwang.

1. Temperature too low

Although winter melon has the character for winter in its name, it is not a vegetable planted in winter; it is actually a temperature-loving, heat-tolerant vegetable that grows well under high temperatures, and in environments with low temperatures and insufficient light it is prone to freezing and poor growth. The suitable growth temperature is 25-30 degrees. If the growth temperature is lower than 12 degrees, then its root differentiation will be seriously affected, emergence will be difficult, and it will not grow new roots. If it is kept at low temperature for a long time, it may lead to what looks like dead seedlings.

Control measures: when the temperature is relatively low, the temperature needs to be raised and the duration of light increased to promote root differentiation and growth. If there is cloudy and rainy weather, artificial heating and supplemental lighting can be carried out.

2. Improper fertilization

When fertilizing with unrotted fertilizer, a large amount of heat is released during the decomposition of the fertilizer, causing symptoms of root burning and seedling burning in the seedlings. When fertilizing, applying a large amount of chemical fertilizer will cause the soil concentration to increase, causing the winter melon root system to lose a large amount of water and thus not grow new roots.

Control measures: when fertilizing, pay attention to whether the fertilizer is fully rotted. When fertilizing, it should not be too close to the root system. When fertilizing, apply organic fertilizer and farmyard manure as much as possible, apply less chemical fertilizer, and water promptly after fertilizing to reduce the concentration.

3. Improper watering

Winter melon likes a moist environment, but it is averse to waterlogging. If too much water is given during planting or there is long-term cloudy and rainy weather, the soil will absorb too much water, causing the soil to be relatively sticky, resulting in hardening, making permeability poor, affecting the respiration of the winter melon root system, hindering the root system's absorption of nutrients, affecting the normal growth of the root system, and causing the phenomenon of not growing new roots.

Control measures: water frequently in small amounts. Each watering should not be too much. In cloudy and rainy weather, drain water promptly, carry out regular intertillage, loosen the soil, and enhance permeability.

4. Diseases and pests

Winter melon root-knot nematode disease is also a cause of not growing new roots. After the root system is infested by root-knot nematodes, they bite through the root tissue, and the secreted saliva chemically reacts with the root tissue, causing the root system to form tumor-like root knots, making the root system unable to absorb water and nutrients and affecting normal growth.

Control measures: disinfect the seeds and soil before sowing, promptly remove diseased and residual roots, and when the disease occurs, use agents to drench the roots to kill the root-knot nematodes.

The above are the reasons why winter melon does not grow new roots and the control measures brought to you by Qinnongwang. After reading them, we hope they can help you. For more agricultural knowledge, please stay tuned to Qinnongwang.