Summer eggplant top cracking prevention
In summer, the top of the eggplant (navel) is cracked and the seeds are exposed and the fruit is no longer inflated. Some lands are seriously affected, affecting production and commodity value. Some of the reasons for the top cracking are caused by uneven watering. During the early period of fruit development, the soil was dry, causing the fruit skin to be lignified. After heavy rain or watering in the later period, the fruit inside quickly expanded, and the peel did not grow accordingly, but split. However, the main cause of the cracking of the top of most eggplants is the lack of calcium in the plants. There are six reasons for the lack of calcium: 1. The lack of calcium in the soil. In particular, continuous cropping plots do not pay attention to the use of calcium fertilizers and cause calcium deficiency. This phenomenon is more prominent in greenhouses and greenhouses. 2. Too much water or heavy rain leaching, the loss of effective calcium in the soil loss caused by calcium deficiency. It is serious when it is rainy in summer. 3. Excessive application of nitrogenous fertilizer in the soil caused excessive accumulation of ammonium nitrogen and inhibited the absorption of calcium. 4. The ground temperature is low in winter, and the accumulation of iron nitrogen in the soil is too much, which inhibits the absorption of calcium. This phenomenon is common in winter greenhouses. 5. Obstruction of water circulation in plants. This phenomenon is divided into two cases: First, the soil is dry, the plants lack of water supply, calcium can not be absorbed and supplied; Second, after heavy rain or watering in summer, the air humidity is very high, inhibiting the transpiration of the plant, the root can not Normal absorption of water and calcium, resulting in the lack of calcium. 6. In the late growth period, due to management negligence, serious pests and diseases, especially the occurrence of Verticillium wilt, blight, root rot, root knot nematode disease, diseased plants, and excessive yield, plant aging and other reasons, the root absorption function Decreased, causing a lack of calcium. Calcium deficiency in summer is mainly due to soil calcium deficiency, heavy rain leaching, excessive nitrogen fertilizer, excessive air humidity, and serious diseases. The measures to prevent cracking on the top of eggplant are: 1. Increase calcium fertilizer: Apply calcareous fertilizer with higher calcium content such as ammonium, calcium, magnesium, etc. in the soil; 2. Watering properly: water in time with drought, but do not pour too much. The rain will be drained in time to prevent flooding. 3. Strengthen management: In addition to doing a good job of pest control, spray natural alizarin solution once every 20 days to promote root growth and development and improve the absorption capacity; 4. Exogenous fertilization: When the air humidity is high in the rainy season, every 3~ After 7 days, 0.3% ammonium calcium magnesium solution was used for extra-root dressing. Butt Plugs,Vibrator Butt Plug Anus Sex Toy,Sex Butt Plug,Butt Plug For Women Shenzhen Dongchen Hey E-commerce Co.,Ltd. , https://www.xxsexytoy.com