The main weeds in the corn field include: crabgrass, setaria, gold green foxtail, chestnut grass, teff, goosegrass, valerian, alfalfa, barberry, gray-green alfalfa, black locust, kochia, salsola, acerola , Amaranthus, Amaranthus, Amaranthus, Amaranthus, Amaranthus, Amaranthus, Amaranthus, Hibiscus, Purslane, Iron Acacia, Castor, Wild Watermelon Seedling, Solanum nigrum and other weeds. Perennial weeds include flowers, reeds, and aconite. First, before seedling after sowing (1) When there is no weeds in the field, it can be used for closed treatment, commonly used pharmaceuticals: 40% isopropylgrass 250-300 g/mu; 40% Bacium 200-250 g/mu; 40% Dingling 200-250 g/mu; 52% isopropylate 200-250 g/mu; 60% isopropylgrass 180-230 g/mu; 40% Acetochlor 200-250 g/mu. (2) After the wheat is harvested, the fields with more annual weeds in the field are mixed and used as a “killer”: 40% isopropylate 200-250 g + 20% paraquat 150-200 g/mu ; 52% Propofol 150-200g + 20% paraquat 150-200g/mu. (3) After wheat is harvested, the fields with more perennial weeds in the field are mixed and used to carry out “one kill”: 40% isopropylate 200-250 g +41% glyphosate isopropylamine salt 250- 300 g/mu; 52% isopropylate 150-200 g +41% glyphosate isopropylamine salt 250-300 g/mu. Second, the corn growth period (1) corn 1-3 leaf stage weeds before weeding to weeds 1-2 leaf stage, commonly used agents: 40% Yufeng (isopropyl straw) 250-300 ml / mu; 40% jade Overcharged (Isoprocateol) 250-300 ml / mu; 52% of Xiyang Yang (isopropyl straw) 200-250 ml / mu; 60% Yu Jia (isopropyl straw) 180-230 ml / mu. (2) Maize 3-5 leaf stage is an important period for controlling weeds in corn field. If weeds are not controlled timely, it will directly affect the growth and yield of corn. Corn 3-5 leaf stage, grass weeds 2-5 leaves, broadleaf weeds 3-5 cm high. Common medicaments: 4% Nicosulfuron Suspension 100-120ml/Mu; 40% Jinyufeng (Nicosulfuron) Suspension 100-120ml/Mu; 53% Jade Sweet (Nicotine-Takijin) 90- 105 g/mu. (3) In the 3-4 leaf stage of maize, there are more plots in the field. Commonly-used pharmaceuticals: 40% happy event and more (smoke sore to Tianjin) 80-100 ml +56% 50g/mu mutric tetrachlorate; 4% Nicosulfuron 100ml/mu +56% methyl tetrachlorine 50-60 g/mu; 56% dimethyl sodium tetrachlorate 60-80 g/mu; 48% eucalyptus pine 150-200 ml/mu; 4% Nicosulfuron 120-150 ml/mu. (4) There are more plots of weeds in the 5-6 leaf stage of corn, and 40% of the happy events can be selected (120 to 150 ml/mu for haze and desflurence); 120 to 150 ml/kg for 40% Jinyufeng (Nicosulfuron). Mu; 40% fate (Sulfomito-Tazin) 250-300 ml/mu; 40% Happiness (halogenated torazine) 80-100 ml + 56% dimethyl tetrachlorosulphate 50-60 g/mu; 40% Fate (sulfamitazine) 100-150 ml + 40% happy event more than 80-100 ml / mu. (5) Maize 5-7 leaf stage, with lots of weeds such as Cyperus rotundus, field bindweed, peony, and grey vegetable, can be applied with 56% dimethyltetrachloro-sodium salt soluble powder 80-100 g/mu; 48 % Prunella 200-250 ml/mu; 40% Happiness (halogenated torazine) 80-100 ml + 56% dimethyl tetrachloro sodium 50-60 g/mu. (6) After the 8-10 leaves (80 cm in height) of the corn, more weeds will be plotted, and 20% paraquat aqueous solution 150-200 ml/mu will be sprayed between the rows. If the field weeds are sparse, add a close herbicide, such as 40% isopropylate 150-200 ml + 20% paraquat 200 ml/mu.

Laser Distance Meter Module is mainly designed for laser distance measurer. As the soul part of a laser rangefinder, our module can assure quick respond, high accuracy and long range measuring.

With different range measuring program, our modules can satisfy customers` different requirements, 40m, 60m, 80m, 100m, 120m, 150m, every distance can do multiple functions, like: Height/Distance/Area/Volume/Pythagorean Measurement. Voice, Bluetooth, angle measuring, beep, and any other functions can be customized.

We have been in this line for 10 years, with a strong R&D ability and hard working, we are now a leading supplier of Laser Distance Meter modules in China.

Laser Distance Meter Module

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Chengdu JRT Meter Technology Co., Ltd , https://www.cdlaserdistancemeter.com