The causes of the latest ginseng fruit leaf curling and its control measures

Leaf curling is a common phenomenon in the production of ginseng fruit, especially after entering the fruiting stage, the leaf curling phenomenon is particularly serious, generally only the edge of the leaf is rolled up, and when serious, the leaf is rolled into a tube. Leaf curling not only affects the normal photosynthesis of ginseng fruit, but also the fruit is not shielded by leaves, which is prone to sunburn, which seriously affects the fruit quality and commodity value. So what is the reason for rolling leaves of ginseng fruit? What should I do with it? Let's take a look.

I. the reasons for the rolling leaves of ginseng fruit

The main results are as follows: 1. when the soil is dry and the water supply is insufficient, the leaf transpiration consumes a lot of water and can not be replenished, the phenomenon of leaf curling will occur.

2. The strong sun in summer often causes the leaf temperature to rise higher, resulting in rapid water loss and leaf curling, so the cultivated ginseng fruit in summer is more prone to leaf curling.

3. When the plant has a large amount of fruit, there is no timely fruit thinning, which leads to the imbalance of fruit leaf proportion, a large amount of nutrients are used for fruit growth, and the leaves will curl because of malnutrition. In addition, in the case of picking the heart too early or not enough leaves when picking the heart, leaf curling will also occur easily.

4. After the use of fruit-setting hormone, the growth of fruit will be enhanced, and the competition for nutrients with leaves will also be enhanced. at this time, if we do not supplement fertilizer and water in time to ensure the normal demand of leaves, it is bound to cause premature senescence of leaves and leaf curling phenomenon.

5. In the process of pest control, weeding and fertilization, improper operation will cause plant drug damage or fertilizer damage, which will cause ginseng fruit leaf curling phenomenon.

II. Prevention and control measures

The main results are as follows: 1. generally, ginseng fruit varieties with small leaves and thick leaves are more resistant to leaf curling, so this variety can be selected in production.

2, in the high temperature period to strengthen temperature control, so as not to cause high temperature caused by curling leaves, try to control the temperature not to exceed 30 degrees, once more than 30 degrees, will not be conducive to the growth and development of ginseng fruit.

3. During cultivation, close planting should be reasonable and ridges should be closed before the arrival of midsummer, so as to avoid strong light shining on the ground, resulting in rapid evaporation of soil water and insufficient water supply.

4. Plastic film mulching cultivation can be adopted, so that the cultivated plants grow strongly, the utilization rate of fertilizer and water is high, and the leaf curling phenomenon is not easy to occur.

5. When spraying foliar fertilizer and pesticide, we must pay attention to the concentration and timing, dispensing medicine and fertilizer strictly according to the required concentration, and should not spray fertilizer at noon when exposed to strong light.

The above is the introduction of the causes and control measures of ginseng fruit curling leaves. I hope I can help you. If you want to know more about it, please follow us.