Eggplant is a crop that likes and fears water. Under the loose soil environment, eggplant can grow vigorously and set fruit normally. When the soil moisture is too high, it will not only make eggplant grow in vain, but also reduce the fruit setting rate of eggplant. Generally, the eggplant planted in the courtyard is watered too much or too often, which makes the eggplant grow vigorously, the jointing stage is too long, the leaves are too large, and it is vain, which affects the formation of flower bud differentiation in the later stage, so the seedlings are long and the fruits are not seen.

Top dressing should be done well, and top dressing should be started before flowering and after fruiting. For scientific experiments, nitrogen is 3.2kg, phosphorus pentoxide is 0.94kg and potassium oxide is 4.5kg per 1000kg eggplant, which refer to pure elements. Therefore, the selection of essential fruit setting agents for these large elements is slightly different. Round eggplant wants to be round and big, so the fruit-setting agent can't contain elongated auxin substances. Long eggplant hopes to be long and straight, so choosing fruit setting agent should consider growing fast, long and straight.

Long eggplant is relatively low, with slender rod-shaped fruit and purple, green or light green skin. Most varieties of long eggplant belong to middle and early maturity. Because long eggplant is more resistant to damp and heat, it can adapt to the growth in the north and south of China. In order to improve the ventilation and light transmission conditions of eggplant, the side branches below the first flower should be removed. When the first and second fruits of eggplant are harvested, too many yellow leaves and old leaves should be removed from the base to reduce the occurrence of diseases and consume nutrients and increase the stress resistance of the plant.

Before planting, seeds should be soaked to accelerate germination, and at the same time, the soil for planting eggplant should be selected. Soil management is also very important. Soil moisture should be controlled well. Finally, after sowing the treated seeds and covering the eggplant with film, seedlings will grow after a period of time. The suitable water temperature for soaking eggplant seeds is 25-30℃, and the seeds are soaked continuously for 10 hour. After soaking, the seeds are taken out and drained, wrapped with wet cloth and put at 28℃ to accelerate germination, which usually takes about 4 days. Sow in different seasons or directly.