Summer eggplant in open field

Eggplant likes water, in July when there is no rain to supplement water, keep the soil moist. When irrigating, the fertilizers ammonium bicarbonate, monoammonium phosphate and potassium sulfate are dissolved in water, and the concentrations are about 0.3%, 0.15% and 0.2% respectively. When furrow irrigation, after a ditch is filled with large water, the fertilizer is evenly scattered in the ditch to melt, and the dosage per mu can be 15-30 kg, 10 kg and 10 kg respectively. If there is no water shortage, you can dig a nest in the middle of every four eggplant plants, and put fully decomposed farm manure in the nest. Pay attention to topdressing according to plant growth and daily yield, and strictly prevent fertilizer damage.

Summer eggplant powdery mildew, special attention should be paid. When the disease occurs, white powdery mildew spots appear on the leaf surface, and the mildew spots gradually become larger and deeper in color. In severe cases, the whole leaf is covered with white powder. At the same time, mildew spots appeared on the back of leaves, petioles, pedicels and calyx. It is easy to occur under the conditions of temperature 25℃-28℃ and humidity 50%-80%, and the incidence decreases when the humidity reaches 100%. In Sichuan area, the disease is mainly serious in high temperature and drought, and less in rainy period. Should be sprayed at the beginning of powdery mildew special agents, such as: triadimefon (triadimefon), Fuxing, polysulfur suspension agent, myclobutanil, Cuibei and other agents. Because eggplant leaves have many epidermal hairs, in order to increase the adhesiveness and spreading of the pesticide, 0.1%-0.2% washing powder can be added when spraying or mixed with 27% high lipid film emulsion 300 times solution, the mist should be fine, the amount of medicine should be sufficient, and the spraying should be uniform.