Grape fruit ear bagging can significantly improve fruit quality, prevent diseases and insect pests, reduce pesticide residues, improve fruit flavor, improve fruit quality and commodity value, and is an important measure for producing pollution-free, high-quality, high-grade fruits. First, handle the ear before bagging. Before the grape is blooming, a portion of the extra, poorly developed flower spikes are sparse, according to the quantity and quality of the flower spikes, so that the nutrients are concentrated and supplied to the remaining quality flower spikes to improve the fruit quality and the fruit setting rate. When sparse spikes, poor flower buds with poor flower development, small spikes, and fine stems are often removed. In order to make the appearance of flower spikes consistent, the results become standardized, standardized high-quality goods, but also need to trim the spike, first remove the spike, remove the 2-3 spikelets from the upper part of the spike, and remove the tip of the spike at the bottom. 1-2 cm. 14-15 spikelets were left throughout the panicle to make the ear tidy and beautiful. After 15-20 days of flowering, the fruit particles are about the size of the soybean when the soybeans are thin. Due to differences in ear weight and fruit size of different varieties, the number of residues is not the same. If Kyoho should leave 35-40 grains per panicle, 30-35 grains per panicle should remain. The sparse grains should be firstly decontaminated by pests and diseases, fruit cracks, sun-dried fruit and malformed fruits, and then the large fruit and seed-free small fruit should be sparse, and the same size and outwardly arranged grains should be reserved. Before bagging, it is necessary to carefully spray the ear with high-efficiency, low-toxic bactericide and insecticide. Pharmacy can be used 40% asparagus blue powder 500 times, 70% thiophanate-methyl 800 times and so on. Second, the choice of fruit bags. The selection of fruit bags should be based on the variety and climate conditions of the regions, the condition of the trees in the park, and the economic capacity. (Special bags can be purchased, but also self-made.) The Kyoho grape is generally suitable for Kyoho's special pure white, treated polyethylene paper bags. When the fruit is ripe, it is a red variety, and it can be made of perforated cellophane paper bags or plastic film bags. The paper bag requires a light texture of the base paper, and after fortification, it has no adverse effect on fruit enlargement, high transparency, strong air permeability and moisture permeability. Specifications can be selected based on the size of the ear of different varieties. There are several types such as 175mm 245mm, 190mm 265mm, 203mm 290mm. Third, bagging period. Usually after the physiological fruit drop (15-20 days after fruit set), the bag is bagged immediately after the fruit is grown to the bean size. End before the rain to prevent early infestation of diseases and prevent sunburn. To avoid the hot weather after the rain or the continuous rain after a sudden sunny weather bagging. Otherwise, it will make it worse. Usually after 2-3 days until the fruit is slightly adapted to the high temperature environment. Bagging time should be sunny 9-11 am and 2-6 pm. Fourth, bagging operation technology. Before putting the bagging, put the whole bag of fruit bags in the tidal temperature to make it moist and flexible. After selecting the young panicles, carefully remove the debris attached to the young panicles, hold the paper bag in the left hand, and open the bag mouth with the right hand so that the air vent holes in the two corners of the bag are opened, and the 2-3 cm below the handle pocket The bag mouth up into the ear, and then from the bag mouth in order by the "folding fan" way to stack bag mouth, tied with a strapping bag in the fold at the top of the line from the connection point of the tear will be reversed At 90 degrees, the pouch is rotated one turn along the mouth of the bag, so that the ears are in the center of the bag and are left unconnected in the bag. The tying wire can be tied to the result stick on the spike handle. The bag should be tightly closed to prevent pests from crawling into the bag to harm the ear and prevent the bag from being blown off by the wind. The average number of bags per mu is about 1,600. Fifth, picking bags. Whether the grapes are picked after bagging depends on the species and species. Red varieties can be bagged about 10 days prior to harvesting to increase fruit light and promote coloration. Kyoho generally does not need to go bags, but also can go through batches of bags to achieve the purpose of staged harvest. In addition, if the fruit bag used has a high light transmittance to meet the coloring requirements, it may not be bagged. When removing the bag, do not remove the paper bag at one time. Open the bottom of the bag so that the upper part of the bag remains on the ear to prevent bird damage and sunburn. The bag-down time should be before 10 o'clock in the morning and after 4 o'clock in the afternoon. Cloudy days can be performed throughout the day. After picking the bag, it is generally unnecessary to spray the drug. The aged leaves and the overlying branches near the ear can be removed in batches in appropriate stages to improve the ventilation and light transmission conditions of the shelf and promote fruit coloring. After harvesting, the spent fruit bags will be burned in a timely manner to eliminate the source of the diseases and insects latent on the bags. Http://
Long distance LiDAR sensor series are particularly easy to communication thanks to their fixed connector, which can be plugged it up and off by yourself. Voltage is wider from 8v before to 36v. Low power consumption feature makes it beceome a very competitive, high performance-price ratio, long range Laser Distance Sensor.
Highlights:
> Measurement frequency: 400 Hz (Max 60m 3000Hz)
> Long range: 200m
> High temperatures: -10~+50℃
> UART output
> Connector design: easy to use
Parameters:
Accuracy |
±10cm(<50m) /±1%(>50m)* |
Measuring Unit |
cm |
Measuring Range (without Reflection) |
0.1-200m |
Interface options |
Serial/usb/rs232/rs485/bluetooth |
Measuring Frequency |
400 Hz |
Laser Class |
Class I |
Laser Type |
905nm |
Weight |
About 20g |
VInput Voltage |
8V-36V |
Resolution |
1cm |
Size |
43*35*21mm |
Operating Temperature |
-15℃~50℃ |
Storage Temperature |
-40℃~85℃ |
Chengdu JRT Main Ranging Modules: Industrial Laser Distance Sensors, Laser Rangefinder Sensor, Tof LiDAR Sensors.
Speed Laser Sensor,Long Range Lidar,Long Range 3D Lidar,Long Range Radar Sensor
Chengdu JRT Meter Technology Co., Ltd , https://www.irdistancesensor.com