(1) Selecting drought-resistant varieties and drought-resistant drought-resistant varieties have the morphological characteristics suitable for arid environments. For example, large seeds, strong root elongation, can be properly sowed; roots developed, rapid growth, deep into the soil, root to crown ratio, can use the deep soil moisture; leaf blade long, small leaf cells, dense veins, surface hair more Thick cuticle. The cytoplasmic virulence of the maize drought-resistant cultivars was very viscous, and the loss of water was low when drought occurred. Under drought conditions, the stomata could continue to open and maintain a certain level of photosynthesis. Before the seeding of corn, drought-proofing of seed is mainly used to treat the seed with dry and wet circulation method and improve drought resistance. The method is to soak the corn seeds in water at a temperature of 20-25[deg.] C. for two days and nights, remove them and let them soak. After the drought-resistant seed, the roots grow fast, the seedlings are short, the leaves are widened, and the water content is high. Generally, the yield can be increased by 10%. In addition, you can also use the agent soaking method, with calcium chloride 1 kg plus 100 kg of water, soaking (or boring) 500 kg, 5 to 6 hours to sow; soaking with succinic acid solution 12 to 24 hours, so that the corn sucking Water drying after sowing; or soaking with 20 ~ 40ppm naphthalene acetic acid, drought resistant seedlings of corn also has a good effect.
Laser Distance Measurer 100M
The Laser Distance Meter is precise measuring tools with high accuracy and 100m long distance. The laser distance measurer can be used indoor and outdoors. It's widely used in many areas, specially in construction industry, thanks to the IP54 dust and water resistant. The digital height measurement device
Why Our 100m Laser Distance Measurer?
1. Long range: 0.03-100m.
2. High Accuracy. The accuracy can achieve ±1.5 mm.
3. Multiple Functional Designs: can be used to measure distance, area, volume, angle, and Pythagorean measurement. Also can add function: Bluetooth, USB charge, voice, touch screen etc.
4. IP54 waterproof rating and dustproof
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