Why should we use the favorable weather in early spring to plant eggplant at the right time?

Under normal circumstances, after eggplant transplanting, it takes 3 ~ 5 days to return to the seedling stage before new roots appear, and the stress resistance gradually increases and the growth tends to be normal. Early spring in the south of the Yangtze River is dominated by rainy weather. At this time, although the soil temperature has rebounded, the weather is unstable, the temperature changes greatly, and there is often strong cold air going south, which is very unfavorable for eggplant planting. For example, on March 26th, 1986,/kloc-0, a strong cold air suddenly lowered the temperature in Shanghai and Hangzhou to below 3℃, and most of the vegetables that had been planted in the ground were frozen.

After more than three months of growth, seedlings have sprouted, and some have grown young eggplant. If the seeds cannot be rushed in time, the seedlings will age or grow white, which will affect the eggplant yield. Moreover, it is not easy to wait until the stable sunny and hot weather in early spring, and the planting period is often missed. Therefore, it is very important to grab seeds in time, which can be said to be the key to win early maturity and high yield of eggplant. Generally, it is necessary to prepare for planting in advance 10 ~ 15 days before the planned planting period, level the land, apply sufficient base fertilizer and tie up the film; Pay close attention to the weather forecast after reaching the seedling age suitable for planting. As long as it is sunny for more than 3 days, we should immediately grab the seeds and transplant the seedlings in the nutrition bowl to the ground in time. After transplanting, it is necessary to cover the large and small plastic film to keep warm, promote the growth of new roots and return to seedlings as soon as possible. If there is strong cold air in the short term, it will have to wait for cold air to colonize. Generally, after 3 ~ 5 days of heat preservation, the new roots of eggplant will grow normally and the plants will not be easily frozen.