Eggplant planted in greenhouse should pay attention to light and temperature and make good use of water

Eggplant likes temperature and is not resistant to cold, and planting eggplant in greenhouse requires suitable "microclimate" conditions. if the temperature is lower, flower bud differentiation is delayed, but there are many long styles, high seed setting rate and high yield. Eggplant likes light, the transpiration of leaves is large, and it is not resistant to drought, but it requires dry air. If it is not released for a long time, it will cause fruit rot and disease. In the management process of planting eggplant in the greenhouse, the following management measures should be taken according to the weather conditions: strengthen the temperature management in the greenhouse: keep the air temperature at 15: 20 ℃ as far as possible before blooming and fruiting, promote flower buds to form more make-up styles, and improve the seed setting rate. After flowering and fruiting, attention should be paid to raising the temperature in the shed, especially the ground temperature, preferably above 20 ℃ and the lowest above 15 ℃. The management of the temperature at noon can be increased by 2-3 ℃ to ensure a suitable temperature at night. After watering, in order to maintain the ground temperature, it is necessary to timely increase the greenhouse temperature, and keep the air in the shed dry, so as to reduce the incidence of eggplant fruit. Strengthen the fertilizer and water management of eggplant in different growth periods: because eggplant needs less water in the early stage, it basically does not need watering. However, it is necessary to use fertilizer and water (organic humic acid liquid fertilizer) to irrigate roots. As a result, the water demand in the period is large, and the watering times should be increased appropriately. The lack of water will cause small fruit, and the surface of the basal stem eggplant fruit will not be glossy, which will affect the yield and quality of eggplant fruit. During the flowering and fruiting period, eggplant must make full use of light and temperature conditions: keep the temperature in the shed suitable and the ground temperature stable, remove old leaves and side branches in time, and often clean the surface of the shed, keep clean and light, promote fruit growth and coloring, harvest and sell in time. From planting to slow seedling and fruit setting, eggplant should scientifically do a good job in fertilizer and water management: grasp the principle of "small fertilizer and water to raise roots, medium fertilizer and water to promote seedlings, and large fertilizer and water to raise fruit". The amount of fertilizer irrigated during the growing period of strong seedlings should not be too large, biological bacterial fertilizer should be selected for irrigation, and the method of interrow watering should be adopted.