First, top-dressing technology May is the high-yield period of eggplant, 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, the late management of the old leaves of eggplant in addition to the removal of axillary buds, keep the plant's bottom (largest) leaves one or two pieces, all other old leaves should be removed.
Third, deep trenching with trenching of the earth will raise the surface, can prevent flooding, increase soil permeability, lower soil temperature.
Fourth, after the disease prevention in May, eggplant pests and diseases are mainly gray / cotton blight, 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 developed a grayish white frosty mold layer, which gradually softened and rotted, giving off a bad odor. , 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:
The initial onset of a central disease strain 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 to 600 times night, 50% thiophanate-methyl WP 800 times, 40% EB aluminum WP 200 times, 64% anti-virus 500 times, etc. 7 to 10 days spray 1, even spray 3 to 4 times. The above-mentioned medicaments are used in combination with Tianda-2116 melon quill fruit for better effect. To prevent the development of drug resistance, different types of drugs should be used for each medication.
Second, the late management of the old leaves of eggplant in addition to the removal of axillary buds, keep the plant's bottom (largest) leaves one or two pieces, all other old leaves should be removed.
Third, deep trenching with trenching of the earth will raise the surface, can prevent flooding, increase soil permeability, lower soil temperature.
Fourth, after the disease prevention in May, eggplant pests and diseases are mainly gray / cotton blight, 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 developed a grayish white frosty mold layer, which gradually softened and rotted, giving off a bad odor. , 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:
The initial onset of a central disease strain 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 to 600 times night, 50% thiophanate-methyl WP 800 times, 40% EB aluminum WP 200 times, 64% anti-virus 500 times, etc. 7 to 10 days spray 1, even spray 3 to 4 times. The above-mentioned medicaments are used in combination with Tianda-2116 melon quill fruit for better effect. To prevent the development of drug resistance, different types of drugs should be used for each medication.