After entering July, vegetables in greenhouses planted in early spring will be gradually pulled into the shelter period. The end of vegetable production in early spring will also herald the beginning of the production of vegetables from the next crop. Then, what problems should be paid attention to before and after the spring and eel vegetables are pulled?
The first is to strengthen management and prevent disease. In the period of vegetable pull, the stems and leaves of plants are yellow, the roots are old, the photosynthesis of the leaves is poor, the root absorption capacity is poor, the taste of the vegetables produced becomes worse, the individual becomes smaller, and the market price is very low, the benefit is obviously degraded, and a lot of vegetable farmers Laid out on the vegetable fields and neglected normal field management. At this time, it often results in more susceptible plants and more insect pests before the vegetables are pulled. The lodging plants before pulling the plants become favorable hosts of diseases and insect pests, resulting in a large number of reproduction of diseases and insect pests, and will lead to the safe production of squat vegetables. It's a big threat. Before the vegetable is pulled, the management of fertilizer and water should be strengthened to delay the senescence of the plant, prevent and control the occurrence of pests and diseases, minimize the number of pathogenic bacteria and the base number of the insect population, and reduce the hidden dangers of the production of vegetables under the yam.
The second is to pull off the cockroach and remove it. For vegetable vegetables such as eggplant, cucumber, tomato, green pepper, pepper, summer squash, green beans, etc., these vegetable roots are more developed, deeper into the soil, and the root base is also very susceptible to pests and diseases, so the residual roots of many vegetable vegetables Accumulation of a certain number of pathogens to varying degrees, if these diseased plant residues can not be thoroughly cleaned out of the garden in time, it will spread pathogenic bacteria on the jaw. Before pulling the soil, if the soil moisture is not enough, it is necessary to water the soil first and then remove the roots. After the roots are completely removed, the stem and leaf fruits of the shoots must also be removed to the outside of the field, away from the cultivated fields, and buried or incinerated.
The third is deep plowing of farmland, high temperature stuffy shed. After cleaning the pastoral area, the farmland is thoroughly deep-turned, the depth of the ploughing is required to reach about 25 cm, and then the farmland is exposed. The high temperatures in the summer and sufficient ultraviolet rays are utilized to initially treat the remaining eggs in the soil. After 10 days, high temperature stuffy sheds were used to maintain a certain humidity in the soil. 100 kg of quick lime was uniformly applied to the soil, and the ground surface was covered with a layer of plastic film to rapidly increase soil temperature. Listen to the weather forecast in advance before the high-temperature stuffy shed, at least continuous sunny weather for more than 5 days. Through the high temperature stuffy shed, the temperature in the soil can reach more than 60°C, and the diseases, such as bacteria, eggs, and root-knot nematodes can be completely killed in the soil. This method uses less investment and does not pollute the soil.
1000Hz High Frequency LiDAR System
JRT High Frequency Range LiDAR Sensor is 2021 new product, that's a low-cost tof sensor but High frequency (up to 1000Hz). With 5cm high accuracy, the LiDAR Module can measure 80m.
Why the 1000Hz High Frequency LiDAR System:
* Widely used in many industrial automation system, like, UAV, delivery van, anti-lock break system, construction automation,intelligent toy robots etc.
* Small size: 43*35*21mm, can be easily integrated
* Invisible laser design: the laser type is 905nm,Class I
* High Frequency: 1000hz/1khz
* Low power design
Chengdu JRT Main Ranging Modules: Industrial Laser Distance Sensor, Laser Distance Meter Module, Tof LiDAR Sensor.
lidar sensor,tof sensor,lidar system
Chengdu JRT Meter Technology Co., Ltd , https://www.cdlaserdistancesensor.com