Eggplant yellow leaves have new discoveries

The newspaper once wrote a detailed report on the current situation of eggplant yellow leaves in greenhouses. At that time, the specific symptoms of eggplant yellow leaves in the greenhouse were yellowing from the bottom of the leaves and veins, showing irregular clusters of yellow patches. The brown spots in the middle are mixed with brown spots. If it is more serious, the leaves will become lumpy and gradually spread upward. The color of the top new leaves will become lighter and fall off. After analysis by relevant experts, it was determined as a result of fertilizer damage, drug injury, and deficiency of nutrients. The prevention and control measures were rational fertilization, scientific drug use, and timely and appropriate supplementation of various trace elements required for eggplant.
Recently, Yang Guangming, agronomist of Jitai Township Vegetable Hospital of Jitai Township, Shouguang City, has updated this explanation. I also believe that this statement is closer to the actual production and is described in detail here so that the vegetable farmers can learn from it.
In the current production of eggplant, eggplant yellow leaves in the greenhouse production of eggplant is due to the unreasonable application of certain sensitive agents, continuous spray control of gray mold, such as prolonged or excessive spraying of pyrimethanil composition of the agent, as well as Shi Jiale, flutter虱 Ling, killing 螟 Dan, etc., if not properly applied, will be in the 5 to 7 days after the spraying will show adverse symptoms.
Inferior fertilizer and water management In the early winter season, vegetable growers in eggplant production often over-control their fertilizers due to their fear of plant growth, causing serious imbalances in the N, P, and K ratios in the soil around the roots of eggplant plants, plant growth potentials, and physiological metabolic disorders. Different degrees of yellow leaves.
The fruit setting rate and growth potential are inconsistent. Since the vegetative growth of the eggplant plant is controlled at a relatively weak stage in the early production period, the vegetable growers blindly pursue a high fruit setting rate, resulting in a disorder in the vegetative and reproductive growth ratio of the eggplant plant. The temperature dropped, and the appearance of yellow leaves in the greenhouse was even more serious.
According to Yang Guangming's prolonged production survey, another important reason for eggplant yellow leaves may be related to grafting. Because of a chance, he discovered that there was grafted eggplant and seedling eggplant in a vegetable shed at the same time (non-grafted The actual production shows that the non-grafted aubergine plants have relatively stable growth potential, good fruit color, high commodity rate, and more importantly, the live seedling eggplant has almost no yellow leaves, and the eggplant grafted with Tolubemu It is accompanied by yellow leaf, and leaf mold occurs from time to time. Because this kind of argument is not yet conclusive, so if farmers in the shed without root-knot nematodes, you can try, seedling eggplant production, or grafting eggplant with unbridled evergreen as the rootstock, may have unexpected results . The newspaper will continue to pay attention to this focus issue....

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