What if the eggplant leaves turn yellow? What caused it?

Eggplant is a fruit and vegetable that we often eat in our daily life, and it has a wide planting area. some people have yellowing leaves in the process of planting, which not only seriously affects the photosynthesis of eggplant, but also reduces the yield and quality of eggplant. What about the yellowing of eggplant leaves? What caused it?

The reason for the yellowing of eggplant leaves

1. Fertilizer damage effect

Fertilizer damage usually occurs on cloudy days or when it turns sunny. Farmers use a large amount of unripe farm manure, which is improperly used, resulting in a large amount of ammonia in the field. When the amount of ammonia is too large, it will affect the growth of eggplant. If there is no timely ventilation, it may lead to eggplant ammonia poisoning.

two。 Drug damage effect

When using medicament on eggplant, the variety and dosage of medicament should be controlled according to the problems occurred in eggplant, the weather and the growth of eggplant. Special attention should be paid to the use of Shijiale and other medicaments. Although the control effect is good, attention should be paid to the concentration and time of use. It should not be used in the morning and evening, because the stomata of eggplant in these two periods are small, and the efficacy will be inhibited to a certain extent, and the use in the evening will increase humidity. Increase the incidence of diseases.

3. Lack of nutrients

The growth of eggplant has a great demand for nutrition, and it is necessary to meet the nutrition demand of eggplant when planting. If lack of nutrition or lack of certain nutrition will lead to a variety of symptoms of eggplant deficiency, magnesium deficiency and iron deficiency are the main causes of eggplant yellow leaves, and some other trace elements will also cause eggplant leaves to yellowing.

Second, what if the eggplant leaves turn yellow

1. Watering and scouring fertilizer in time

After the occurrence of fertilizer damage, it is necessary to water in time, wash fertilizer, restore the physiological function of plants, control the temperature in the planting shed, properly spray foliar fertilizer, and add appropriate amount of potassium dihydrogen phosphate to foliar fertilizer. If there is a phenomenon of root burning, it is necessary to properly spray rooting agent to promote the occurrence of new roots. when topdressing, farm manure should be fully mature, and a certain fertilizer should not be applied alone.

two。 Timely spraying foliar fertilizer to relieve drug damage

After the occurrence of drug damage, it is necessary to spray foliar fertilizer to relieve drug damage in time. If it is found early, clear water can be sprayed on the leaf surface to alleviate the drug damage, and the use of the chemical should be controlled according to the growth of the plant and various factors. Special attention should be paid to the concentration of the chemical, which is the main cause of yellowing of eggplant leaves. After the occurrence of drug damage, the temperature in the greenhouse can be properly increased to protect the root of eggplant.

3. Replenish nutrition in time

When eggplant appears yellow leaf phenomenon due to element deficiency, there will be different yellow leaf phenomenon, for example, when magnesium deficiency occurs, the middle and lower leaves of eggplant will begin to yellowing and gradually develop upward, while iron deficiency will lead to yellowing of young leaves at the top of the plant. Generally, iron deficiency in the soil will lead to iron deficiency, so yellow leaves caused by element deficiency should be supplemented according to the specific lack of elements.

The above is the introduction of the causes and control methods of eggplant leaves yellowing in Tuliu.com. Eggplant yellow leaves are mainly based on prevention, and management should be strengthened in the process of planting to avoid some unnecessary losses caused by eggplant yellow leaves.