First, fertilizer technology
April is a period of high eggplant production, and there is a great demand for fertilizer and water. Eggplant hi water, we must pay attention to keep the soil moisture, water shortage can be watering and furrow irrigation. When watering, the fertilizers such as ammonium bicarbonate, monoammonium phosphate, and potassium sulfate were dissolved in water at concentrations of about 0.3%, about 0.15%, and about 0.2%, respectively. When furrowing, fill a ditch with large water, and then spread the above fertilizer evenly in the ditch to melt. The dosage per mu can be 15 to 30 kg, 10 kg and 10 kg, respectively. If there is no shortage of water in the vegetable fields, a nest can be dug in the middle of every four eggplants, and a fully cooked manure can be placed in the nest. Note: Increase the amount of ventilation after top dressing to prevent the occurrence of fertilizer and disease.
Second, late management picks old leaves
In addition to removing the axillary buds, the eggplant retains one or two leaves of the lowermost (largest) plant. All other old leaves should be removed.
Third, deep trenching
Raising the surface of the car with trenching soil can prevent flooding, increase soil permeability, and reduce soil temperature.
Fourth, prevent diseases
After May, eggplant diseases and insect pests are mainly gray/milk blight and powdery mildew. The ash blight showed brownish-brown lesions on mature fruits with slight depressions. When the disease was aggravated, the whole fruit was dark brown. If the humidity increased, the fruit surface produced a grayish, creamy layer of mildew that gradually softened and rotted, giving off odor, and sometimes , on the path of eggplant transport and shop stalls. Under high temperature and high humidity environment, the growth and development of M. blight isolates are most beneficial, of course, it is also beneficial to the infection of other pathogens. Therefore, in the summer when the temperature is high and rainy, you can see a lot of eggplant rot and quickly grow long and dense white hair, a large number of mature eggplant fruit, infected by M. dysentery, will soon form rotten eggplant.
Control methods: Central disease strains appear at the initial onset, and they should be immediately removed, destroyed and sprayed. From the beginning of the rainy season, a 1:1:200-fold Bordeaux mixture is sprayed every 7 days for protection. The effect is very good. Once the disease has occurred, it must be applied immediately. There are 75% chlorothalonil 500, 600 times night, 50% thiophanate-methyl WP 800 times, 40% EB aluminum WP 200 times, 64% antivirus 500 times, etc. 7 to 10 days spray 1, even spray 3 to 4 times. To prevent the development of drug resistance, different types of drugs should be used for each medication.
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