In some greenhouses, the plants grow robust after the colonization of cucumbers, but the stems and vines of the fruiting melons gradually become thin, and they are found only after falling. The degree of difference in the thickness of the stems and vines is more or less the same after a certain period of time. This is what cucumber farmers say: Waist phenomenon. What causes this?
1. The thinning of cucumber stems, the most direct reason is to sit too many melons, that is, too many La Guagua friends often say, affecting the growth of stems.
2. In the situation where the plants are sitting on a lot of melons, the fertilizer and water management of the vegetable growers, especially the fertilizers, will cause problems. It is more likely to cause thinning of stems and yellowing of leaves.
3. The sudden drop in temperature and cloudy days will further increase the phenomenon of "waxing".
When the cause is found, treat it symptomatically. First reduce the number of melons on the plant and promote the recovery of the plant growth. Then strengthen fertilizer management, especially top dressing. Here, to remind farmers friends to strengthen the management of fertilizer and water should pay attention to the following three aspects:
1. Pay attention to weather changes. The topdressing watering should be in sunny weather. If it is rainy, even if the cucumber is slightly dehydrated or defertilized, it should be delayed until the weather turns good. Otherwise it is not conducive to plant growth and development.
2. Pay attention to the dryness of the soil. Cucumbers have strict requirements for watering. Normally, under low temperature conditions in winter and spring, if it is not very arid, watering should be controlled as much as possible. The surface is dry and wet, and the soil is not agglomerated. When the soil surface has small cracks, pour small water and apply it with water and fertilizer.
3. Pay attention to reasonable fertilization according to cucumber growth. In general, the control of cucumber seedlings is controlled by watering from the seedling stage, and the seedlings from the early flowering stage are combined with the topdressing fertilizer and the water is poured. The result of the flood season is based on the condition of the seedlings and the topdressing fertilizer is watered in a timely manner.
In the selection of fertilizers, it is not a common misconception for many vegetable farmers to use high-potassium fertilizers. Actually, the supply of fertilizers for the growth of plant stems and the development of the melon body should be coordinated at the same time, that is, high-potassium-type water-soluble fertilizers and balanced-type water-soluble fertilizers should be alternately applied. After the temperature is lowered, it is necessary to supplement the biological bacterial fertilizer and maintain the root system. Only the strong root system can better absorb nutrient supply and plant growth and fruit growth.
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