Dryland wheat cultivation techniques

First, select good varieties, pharmaceutical seed dressing selection of buckwheat 10, buckwheat 7, buckwheat 11, buckwheat 12, buckwheat no. 13 and other fine varieties, and grasp the key before sowing sun, pharmaceutical treatment and other key Technology to improve the quality of improved varieties.

Second, cultivation technology

1, site preparation and sowing. 1 Site preparation: The wheat-to-rice model was promoted in paddy field wheat and used a 2.33 m (7 ft) open car with 2 m wide face, 0.33 m (1 ft) wide and 0.33 m (1 ft) deep. Dry wheat wheat is promoted as Mai-Yu-Jin or Mai-Yu-Bean pattern. The middle box plant adopts a 2.0-meter (6-foot) specification to open the car, and the equal-division belt has a wheat belt width of 1 meter, planting 5-6 rows, and row spacing. 25x13.2 cm (7.5 x 4 inch); or planted with a cross slope to prevent soil erosion, ranking 7-8 inches. 2 Seed sowing: planting one week before and after the winter, using sparse plantlets or planting on the ditch. Due to the harvesting weather in 2010, the seed germination rate was slightly worse than in previous years, and the seeding rate should be increased slightly. Uniform seeding should be achieved, and the sowing of the seed should be avoided and the sowing phenomenon should be eliminated so as to ensure that the whole wheat seedlings, Miao Qi and Miao Miao Miao Zhuang. Generally, the net seeding rate is about 10 kilograms, and the basic seedlings per mu are controlled at 12 to 140,000. Zhongmu planted 1 to 12,000 litters of planted acres, 6 to 6.5 kilograms of mu, and 7 to 80,000 mu of basic seedlings.

2, soil testing formula fertilization technology. Fertilization should adhere to the principle of organic fertilizer, supplemented by chemical fertilizers, combined application of base fertilizer and topdressing fertilizer. 1 Paddy fields: generally, when planting mu, 13 kg of urea (6 kg of pure nitrogen/mu), 40 kg of superphosphate (5 kg/mu of phosphorus pentoxide), and 10 kg of potassium sulfate (5 kg/mu of potassium oxide); or Mushi 40% compound fertilizer 30 kilograms of fermented manure 2000 kilograms of base fertilizer. Early application of sub-fertilizer, see seedling supplement Shi grain fertilizer. In the wheat two-leaf one heart, 1000 kilograms of manure water and 7-9 kilograms of urea are used as topdressing to promote root growth. 2 dry land: General end-use Mushi urea 7.5 kg (3.5 kg pure nitrogen/mu), superphosphate 30 kg (phosphorus pentoxide 3.6 kg/mu), zinc sulfate 0.5 kg, potassium sulfate 5 kg (potassium oxide 2.5 kg/ Mu) or so, or 40% compound fertilizer Mushi 20 kg against 2000 kilograms of decomposed manure water as the base fertilizer. Early application of Miaofei at the 3rd leaf stage of wheat, about 3 kg of urea per mu, against litter or clear water. If the leaf color of the group is yellow and the growth is relatively weak, the joint fertilizer should be chased and applied, and 1 kg of mu urea should be used to remove the litter or shower.

3. Strengthen field management and prevent pests and diseases. Before wheat sowing, the seed dressing was used to control the bacteria source and reduce the incidence. From the earliest stages of flowering to flowering, the mu should be treated with 60% insects and insects to control wheat scab, powdery mildew, sheath blight, wheat spiders and wheat bran. When rust occurs, it can be treated with 15% triadimefin 100 grams per mu.

4, timely grab sunny harvest. When the flag leaves of wheat plants turn yellow and the stems turn yellow, more than 80% of the grains turn yellow, the thousand-grain weight is the largest and should be harvested and dried in time, and the rodents must be protected against moisture when stored.

Dome Lens

Dome windows are hemispheres. The two optical surfaces are an equal thickness apart, creating a naturally strong shape that gets tougher under pressure. This makes dome windows ideal for underwater environments and in applications such as camera dome ports and submersible windows.


BK7 or K9L domes are used primarily in meteorology applications. BK7 offers excellent transmission from 300nm up to 2µm. BK7 is a relatively hard material, with excellent chemical durability.


UV fused silica domes: For applications operating in the deeper UV range, Worldhawk offers a range of UV fused silica domes. Fused silica domes are commonly used in underwater applications at extremely high pressures.


Sapphire domes: For infrared applications we can provide sapphire domes. Sapphire is an extremely hard material with transmission of over 80% in the 2-5µm wavelength range. As with fused silica, sapphire is able to withstand extreme pressures, making it the perfect material for underwater camera and missile fairing applications.

dome lens

Dome Lens,Dome Spherical Lens,Glass Dome Spherical Lens,Spherical Glass Dome Lens

ChangChun Worldhawk Optics Co.,Ltd , https://www.worldhawk-optics.com