How to manage eggplant during the high yield period in May is very important.

May is the high-yield period of eggplant in the greenhouse, so the management work should be done well, if you don't pay attention to it, it will reduce eggplant production, so what is the management of eggplant in May?

Eggplant in greenhouse

1. Topdressing technology

During the high yield period of eggplant in May, there is a great demand for fertilizer and water. Eggplant likes water, should pay attention to maintain sufficient moisture in the soil, such as lack of water can be used to irrigate and furrow irrigation. During watering, the fertilizers monoammonia phosphate, potassium sulfate and ammonia bicarbonate were dissolved in water with concentrations of about 0.3%, 0.15% and 0.2%, respectively. During furrow irrigation, the heavy water fills a ditch, and the above fertilizers are evenly sprinkled in the ditch water to melt, and the dosage per mu can be 10 kg, 10 kg and 15-30 kg respectively. If there is no shortage of water, you can dig a hole in the middle of every four eggplants and put fully mature farm manure in the hole. Attention: increase the ventilation rate after topdressing to prevent eggplant from fertilizer damage and disease.

Second, picking old leaves in the later stage of management

Except for removing the axillary buds and retaining one or two pieces of the lowest (largest) leaves of the eggplant, all the other old leaves of the eggplant were removed.

Third, dig deep trenches

Raising the soil used to dig trenches on the border surface can prevent flooding, increase soil permeability and reduce soil temperature.

IV. Prevention of diseases

After May, eggplant diseases and insect pests are mainly gray blight, cotton blight and powdery mildew. Grey blight showed that light brown to brown spots appeared on the mature eggplant, slightly sunken, when the disease was aggravated, the whole eggplant was dark brown, if the humidity increased, the eggplant surface produced gray-white frost-like mold layer, gradually softened and rotted, giving off a stench. Grey blight can also occur in eggplant transportation and in shop stalls. High temperature and high humidity are beneficial to the growth and development of Phytophthora infestans and other bacteria. High temperature and rainy summer, a large number of eggplant rot and quickly grow white hair, about to mature eggplant, infected by Phytophthora infestation, soon form rotten eggplant.

Prevention and control methods:

The diseased plants in the destruction center should be removed immediately and sprayed for prevention and control. From the beginning of the rainy season, spray 200 times Bordeaux solution with 1 rime and 1 dip Bordeaux every 7 days for protection, the effect is very good. Once the disease occurs, the drug must be administered immediately. The medicament has 500 times 600 times 75% chlorothalonil, 800 times 50% methyl topiramate wettable powder, 200 times 40% ethyl phosphorus aluminum wettable powder, 500 times 64% poisonous alum, etc., generally sprayed every 7-10 days for 3-4 times. Tianda-2116 special type of melon and eggplant fruit can be mixed with the above medicament, and the effect is better. In order to prevent the formation of eggplant drug resistance, different kinds of drugs should be used each time.