High-efficiency fertilization technology

Urea and ammonium bicarbonate are commonly used nitrogen fertilizers. They should be applied as a top dressing or a hole, with a depth of 5~10 cm.
Calcium, magnesium and phosphorus fertilizers are not easy to dissolve in water, and the fertilizer efficiency is slow. The effect of compound fertilizer and organic fertilizer is good; the utilization rate is lower and the effect is poor.
The superphosphate is very corrosive, and the top dressing should be applied deep in the trench; the seed fertilizer should be applied to the bottom or side of the seed 5-6 cm, and the soil should be separated from the seed by soil. Superphosphate should not be directly mixed with seeds.
The potassium fertilizer used in agricultural production is mainly potassium sulfate and potassium chloride, both of which are water-soluble quick-acting fertilizers, which have a weak physiological acid reaction. After being applied to the soil alone, the potassium ions are easily absorbed and fixed by the cations in the soil colloid. Crops are difficult to use. Therefore, it should not be applied alone, and should be applied in combination with nitrogen and phosphate fertilizers. Potash fertilizer should be concentrated in the application of fertilizer or acupoint application.
There is a enthalpy effect between zinc and phosphorus. For example, when zinc sulphate is mixed with superphosphate, the effect of zinc sulphate is inhibited. Therefore, the two should not be mixed.
The borax is sprayed after being dissolved in boiling water. It is wrong to dissolve borax in cold water commonly used in production. Borax will soon recrystallize in cold water, causing borax to precipitate out in solution and lose fertilizer efficiency. The correct method: first put the borax into the thermos bottle, add water to dissolve, cover the bottle stopper to the field, and then cool the water to the desired concentration.
【Comment】 【Print this article】 【Close this page】 【Large, medium and small】

Aluminum Spiral High Speed Door

The Spiral door offers high-speed operation for high-traffic situations and rigid aluminum slat construction that eliminates the need for a second security door. Crisp lines give the Spiral door a stylish look that's great for many types of commercial, automotive retail, government, institutional and industrial applications. The Spiral is ideal for automotive dealerships, government, parking and security. Benefits No metal-to-metal contact reduces wear on the door panel and offers fast, quiet operation.

Aluminum spiral High Speed doors are usually used wherever goods traffic occurs and where the doors have to fulfill special requirements. In the food and beverage industry, or Medical industry for example, special climatic conditions have to prevail; short opening and closing times reduce cooling loss, avoid airflow and enable a smooth operating procedure. They can also be designed in larger dimensions for the mining and aircraft industries.

Aluminum Spiral High Speed Door,Simple Hard Fast Door,High Speed Spiral Door,Metal Hard Fast Door

Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hfautodoors.com