Spring eggplant planting wants to improve the fruit retention rate, then do a good job of rainy weather management!
Eggplants are grown in many areas, and nowadays eggplants are common. In the early spring of 2-4 months, the greenhouse temperature experienced a gradual increase from low temperature to late temperature. The plant nutrient accumulation decreased, the growth and development accelerated, the falling flowers and fruit fell frequently, and the diseased fruit increased. At this time, according to the temperature change law, the shed was divided into two stages. management. First, the first stage is 2-3 months At this time, the temperature is generally low, and the soil surface is dry. At this time, the main reason is heat preservation and antifreeze. The shed temperature is required to be 25°C~28°C during the day and 15°C at night. 1, ventilation during the day, sunny days can be opened after 9 o'clock, ventilation from small to large to 4 o'clock closed. Strengthen the cover insulation at night to prevent the temperature inside the shed below 10 °C. In the rainy days, small ventilation can be carried out around noon, not too big, and the time cannot be long to prevent the temperature in the shed from dropping too much. 2. Fertilizer management is mainly carried out by foliar application and root leaching. It can be carried out at noon on sunny days. This is the best time for plants to absorb nutrients. 3, do a good job of maintaining flowers and fruits, due to lack of nutrition, soil is dry or too wet, the temperature is too high or too low, excessive application of nitrogen fertilizer will cause the plant to grow long and so on. The effect of anti-falling on the young leaves and shoots can be sprayed. The concentration in the early low temperature stage is 30~50 mg/kg, and the concentration decreases with the increase of temperature. A small sprayer can be held, and the flower spikes are placed between the fingers and placed on the palm of the hand. If there are more spikes, the flowers that are open later can be sprayed again. Second, the second phase is April At this time, the temperature gradually rises, the temperature changes, the wet and dry alternate, the humidity in the shed is too large, the ventilation should be done in time, the humidity in the shed and the temperature in the shed are too high to reduce the occurrence of diseases. 1. Temperature and ventilation management The noon temperature in the shed is gradually higher than the normal temperature of the plant. Ventilation should be strengthened. Otherwise, the temperature inside the shed will be too high and the plant will be burned. The length of ventilation and the amount of ventilation can be controlled according to the temperature displayed by the thermometer in the shed. 2. Add the whole fertilizer and pruning in time. As the temperature rises gradually, the plant growth will gradually accelerate. It is urgent to supplement the nutrient fertilizer, from small to large, and increase the amount of fertilizer. Apply 5~7 kg of urea per mu, and apply once every 10 days; spray potassium dihydrogen phosphate solution 3~4 times. At the same time, combined with top dressing, timely watering, keeping the soil moist, ventilation after ventilation, to prevent the air humidity in the shed is too high. 3, strengthen pest control Because the humidity in the shed is large, the disease is common, dust or fumigant should be used to reduce the water dispersion in the shed. For gray mold, 40% of the bacteria and procymidone can be used for 2 to 3 times every 7 to 10 days. The main pests are aphids, red spiders, thrips, etc. with 70% imidacloprid, 43% biphenyl ester, 34% spirodecyl ester; thrips with 30% clothianidin, 5% doxorubicin and the like. 4. Timely harvesting and topdressing and harvesting should master the principle of “slighter time and slightly tenderer fruitâ€. Specifically, depending on the width and width of the white ring-shaped belt at the junction of the bract and the fruit, it is better to use a wider white ring. Also known as the eggplant eye). Not only can the morning market, the quality is tender, and the early yield is increased, which is conducive to the growth of the young fruit in the later period and increase the whole-term yield. Third, the management of rainy weather In the management of water, it is necessary to pay attention to ventilation. Firstly, the drainage ditch around the shed should be controlled to avoid causing too much humidity in the shed. The shed is made of high sorghum to avoid spraying and pouring water in rainy days. Under the condition of noon outside temperature, "two low, two small, two high and two long" ventilation: low temperature, small ventilation; low humidity, small ventilation; high temperature, long ventilation; high humidity and long ventilation. If the temperature in the shed is low and the humidity is high, short-term ventilation should be carried out, but it is necessary to keep the shed in time. For the wonderful pictures and popular comments on spring eggplant management, you may be interested in the following recommended content, welcome to read. Sarms Products,Lgd4033,Gw501516,Mk677 Shaanxi Hongbaiyi Biotech Co., Ltd. , https://www.sxhongbaiyi.com
