Preservation note 1. No high-concentration fertilizers can be applied within 15 to 20 days after picking. Within 15 to 20 days after harvest, the tree's vitality is restored. When the tree's vitality is not restored, the application of high-concentration fertilizers causes the tree's normal life activities to be destroyed, and physiological defoliation is easily generated. 2. Before the restoration of the tree's vital energy within 15 to 20 days after the harvest, no chemical weeding shall be performed in the orchard, and in particular, weeds shall not be sprayed with glyphosate. After the weeds are sprayed with glyphosate, in order to survive, a pear is formed. The situation of grass struggles for water; secondly, weeds are sprayed by glyphosate to leave the surface of pear orchard exposed to sunlight, which affects the moisture absorption of pear trees and causes physiological water loss and defoliation. 3. Avoid sprays of high concentrations of pesticides at high temperatures at noon for 15 to 20 days after harvest to avoid scalding. 4, post-harvest conditional farmers can be covered with grass, green rice straw and other straw under the pear tree. Leaf protection measures 1. Immediately after fruit harvesting, foliar application of nutrient solution, ie 1 g of 2,4-D to 50 kg of water, plus 0.3% of urea and 0.3% of potassium dihydrogen phosphate. Every 10 to 15 days, 2 or 3 times in a row. 2, to do a good job in pest control, Pear brown spot, Pear spot disease, gray spot disease, rust, black spot disease and other pests will cause defoliation. Drug control optional 70% thiophanate-methyl WP 800 ~ 1000 times or 70% WP (manganese) potassium WP 600 times spray. Spray once every 10 to 15 days for 2 to 3 consecutive times. Insect pests, mainly locusts, pears, crickets, beetles. The frequency-vibrancy insecticidal lamp can be installed in a place convenient for power supply. A lamp of 100-200 watts can be installed. A large box is placed 40 centimeters from the bulb. The box is filled with an appropriate amount of water and a small amount of oil (vegetable or kerosene) is added. Insecticides.
temperature warning sensor
Temperature Sensor,Rtd Sensor,Temp Sensor,Infrared Temperature Sensor Zhejiang Haisheng Medical Device Co., Ltd , https://www.hisernmedical.com
Pear fruit after harvesting
A highly accurate sensor that features tear-resistant
bandages.
Offers high accuracy data during low saturation
conditions, 60% to 80% SpOâ‚‚+/-3.
Enable informed clinical decisions for patients in
low saturation range.