Planting techniques of summer eggplant in July

Summer eggplant in open field

Eggplant likes water and should replenish water and keep the soil moist when there is no rain for a long time in July. During watering, fertilizers ammonia bicarbonate, monoammonium phosphate and potassium sulfate are dissolved in water with concentrations of about 0.3%, 0.15% and 0.2%, respectively. After filling a ditch with heavy water during furrow irrigation, the above fertilizers are scattered evenly 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 shortage of water, you can dig a nest among every four eggplants and put fully mature farm manure in the nest. Pay attention to topdressing according to plant growth and daily yield, strictly prevent fertilizer damage.

Eggplant is prone to powdery mildew in summer, so special attention should be paid to it. During the onset of the disease, a little white powdery mildew spot appeared on the leaf surface, the mildew spot gradually enlarged and the color deepened. In serious cases, the whole leaf is covered with white powder. At the same time, mildew spots appeared on the back of leaves, petioles, fruit pedicels and calyx. The disease is easy to occur when the temperature is 25 ℃-28 ℃ and the humidity is 50% and 80%, and the disease decreases when the humidity reaches 100%. In Sichuan area, the main disease is easy to be serious in high temperature and drought, and less in Rain Water period. Special agents for powdery mildew should be sprayed at the initial onset, such as triadimefon (triadimefon), Fuxing, polysulfide suspension, nitrile, Cuibei and so on. As the eggplant leaves have a lot of fur on the surface, in order to increase the adhesion and development of the agent, 0.1% 0.2% washing powder can be added or mixed with 27% high-fat membrane emulsion 300 times, the fog point should be fine, the amount of water should be sufficient, and the spray should be uniform.

Kandelia Candel sowing

It is the sowing time for eggplant cultivated in autumn before July 20. When sowing, we must pay attention to Rain Water and the scorching sun. Seeds can be sown directly without accelerating germination. After sowing, build a small arch shed on the seedbed, cover it with a thin film when there is rain, and cover it with a sunshade net with a shading coefficient greater than 80% (double layers can be covered in the early stage). Keep the facade ventilated, cool and moist. When eggplant seedlings have two true leaves, fake planting can be carried out. It is better to use nutrition cups of more than 9 × 9 centimeters, and square seedlings of 10 centimeters can also be bred. After about 20 days, they can be transplanted.