Cowpea is a high-temperature crop that requires more carbon dioxide. There are four major problems in protected cultivation: low ground temperature, carbon dioxide deficiency, serious diseases and pests, and soil compaction. Application of straw bioreactor and plant vaccine technology, winter ground temperature increased by 46C 46C, carbon dioxide concentration increased by 46 times, reducing the amount of fertilizer 60%, reducing the amount of 80% of pesticides, can not use chemical fertilizers for 3 years, the cost reduction of more than 60%, the average increase in production More than 50%, 15 days ahead of maturity, 30 days longer harvest period. The specific usage is as follows: The amount of straw and other materials: 3 000-4 000 kg of straw for straw, 100 kg of cake fat, 34 m of feces of cattle, horses and other herbivores, prohibiting the use of chickens, pigs and humans that transmit nematodes and diseases. And other non-herbivore feces. The amount of strains and vaccines used: 68 kg of mu bacteria and 23 kg of vaccine. Strains and vaccines were developed by the Straw Biotechnology Research Center in Shandong Province. Treatment of strains and vaccines before application: 1 kg of bacteria mixed with 20 kg of wheat bran and 18 kg of water. The three were mixed and accumulated for 45 hours. If the day is not finished, spread out in a dark place with a thickness of 58 cm. Continue on the second day. One kilogram of vaccine was mixed with 20 kilograms of wheat bran and 18 kilograms of water. The treatment method was the same as above. Operating time: built-in type, 15 days before planting; built-in between rows, after planting. Operation of the built-in straw bioreactor: Before planting, the ditch is formed in a small row, the width of the ditch is equal to that of the small ditch, the ditch depth is 1520 cm, the length of the ditch is the same as the length of the ditch, and the excavated soil is divided into two sides, and the ditch is filled after the ditch is finished. Straw, filled with practical straw thickness of 30 cm, two stalks of the trench exposed 10 cm, in order to enter oxygen. After the straw is filled in, the amount of bacteria in each furrow is evenly spread on the straw. After the shoot is done with a mortar, the soil will be backfilled on the straw, and then the water will be poured through the straw. After 34 days, the ridge will be leveled and the soil will be covered. Thickness is about 15 cm. Then dig a hole or open a small ditch, spread the vaccine in the planting hole and mix well with the soil, put the seedling watering. Finally, cover the membrane, punch the holes, and drill holes with 14 steel bars between the two lines in each row. The hole spacing is 15 cm, and the depth of the holes penetrates the straw layer. Operation of built-in straw bioreactors between rows: This method lands 1,520 centimeters between the large rows after planting, puts the straw to be practically filled, and has a thickness of 30 centimeters. Each of the two ends of the furrows exposes 10 centimeters of straw, and then presses each trench as required. The bacteria is spread evenly on the straw, and it is patted again. The soil is backfilled onto the straw, and then the water is moistened with small water. The built-in reactor between the rows only pours the water once, and watering is performed between the rows. After 67 days, the cover film was punched, and punching was carried out with 3 cm 1 row and 20 cm 1 hole, and the hole depth penetrated the straw layer. Built-in operation precautions: should be done three feet, one dew and three not. Three feet: The amount of straw should be sufficient, and the amount of bacteria should be sufficient. The first watering should be enough. One dew: 10 cm of exposed straw in the built-in groove. Third, not suitable: the ditch should not be too deep, 15-20 centimeters is appropriate; cover soil should not be too thick, about 15 centimeters is appropriate; punching should not be too late, timely punching after planting. 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.
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.infrareddistancesensor.com
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
