After the planting of the open field eggplant, it will soon encounter the hot weather in July and August. The eggplant is like water and is not resistant to cockroaches. This kind of weather poses a great threat to the normal growth of eggplant, and it also makes the manual management more difficult. Therefore, the summer management of open field eggplant needs to pay special attention to the following three aspects: proper water control, reasonable fertilization, and timely prevention and control of pests and diseases.
One should pay attention to proper water control.
First of all, in the cultivation conditions, we should try to choose the sandy loam with higher terrain, and ensure that the soil is moist to ensure the normal growth of the eggplant. When the soil moisture is insufficient, the plant will grow slowly and cause the flowers to fall. Therefore, when rooting, the roots should be poured to make the roots grow rapidly. It should be re-grown once in the early harvest period to promote the rapid expansion of the fruit. In the middle growth stage, the soil can be kept moist.
Second, we should pay attention to reasonable fertilization.
Eggplant grows long, so it is necessary to re-apply the base fertilizer and timely topdress. Eggplant requires a lot of nitrogen, but it should not be applied too much during the hot season. “In the pursuit of ammonia fertilizer, many vegetable farmers will combine with irrigation. In fact, in the hot season, this method is not ideal.†Zou Zhirong said that because of the high temperature, it will not only cause ammonia fertilizer to volatilize, but also cause eggplant. Ammonia poisoning, so it is recommended to use ditch application. "Eggplant leaves are large, it is recommended to carry out foliar topdressing if necessary. Potassium dihydrogen phosphate works well, but pay attention to control concentration."
Third, attention should be paid to timely prevention and control of pests and diseases.
In summer, the temperature is high and humid, and the eggplant pests and diseases are serious, especially the verticillium wilt and the plague. Verticillium wilt is commonly known as "half-side madness" and is one of the main diseases of open field eggplant. Zou Zhirong said that the most direct way to treat verticillium wilt is to use Torumbamu as a rootstock during the seedling period and use the grafting method to solve it. For plants that have already developed disease, 77% of the WP can be used to irrigate 800~1000 times of liquid, usually about 10 days, and continuous control for 2~3 times. Of course, the particularly serious plots should be pulled out in time, and the quicklime is spread on the diseased plants after the removal.
Because eggplant is watery and not resistant to cockroaches, it is necessary to do well in the field to ensure that there is no water accumulation after the rain, and timely remove the diseased leaves, diseased fruit, reduce infection, strengthen the cultivating, increase the application of phosphorus and potassium fertilizer, and improve Plant disease resistance.
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