1, right amount. Eggplant requires the largest amount of nitrogen, but in the hot season, eat less. The application of urea per acre should be controlled within 30 kg. Because of the high temperature season, the rate of transformation of urea into the soil is relatively fast. After the plants meet their needs, the excess will be lost. Especially sandy soil, the proportion of loss will be greater. It is more appropriate for ammonium bicarbonate to not exceed 40 kg per acre. If the application amount is too large, besides causing loss of nutrients, it will also cause ammonia damage to leaves and fruits of eggplant. 2, law. It is customary for vegetable farmers to use chemical fertilizers with water, but this method should not be used in summer hot season. Because of the high temperature, a large amount of ammonia volatilizes will reduce the effect when chemical fertilizer is used. Especially ammonium bicarbonate is more likely to cause eggplant ammonia poisoning. The use of trenching or digging a hole to bury the best. The thickness of the buried soil after dressing should be not less than 5 cm to reduce the volatilization of the active ingredients of the fertilizer. 3, a reasonable match. Although eggplants require the greatest amount of nitrogen, phosphorus and potassium fertilizers are indispensable, and only nitrogen fertilizers can be applied topdressing each time. In the full fruit period, it is advisable to top-dress 2 times in total to not less than 40 kg in order to meet the needs of eggplant production and results. JRT OEM Digital Laser Range Finder can measure faster, easier, and more effectively! Our Professional R&D team has over 16 years of experience on the laser and measurement field , so we can supply perfect OEM/ODM service according to user requirement ,and we have made out the mini size module in the world. Handheld Laser Meter，Handheld Laser Distance Meter，Laser Range Meter，Laser Distance Measurer Chengdu JRT Meter Technology Co., Ltd , https://www.cdlaserdistancesensor.com
The handheld laser distance measurer can measure distance,area,volume and pythagorean, and can switch to meter/feet/inch mode as you like.
Specially, there is three best-sale styles:
* Mini: D30 with our mini module U81 in it achieved the smallest size Laser Distance Meter in the world, which outlook is the same as a key,quite portable and cute. USB chargable design.
* Bluetooth: Diy Laser Range Finder With Bluetooth has been used to measure distances accurately in the both daily usage and industry application. The handheld laser distance measurer is widely used in variety areas, like project surveying, construction measuring, railway application etc.
* Longest: 150m equipped with a precise,easy- to-read digital LED display, which metal case brings you great hand feel.Power Supply: 2 x 1.5V AAA batteries.
Eggplant in the summer with no fat blindness