The fruit tree hole storage fertilizer and water-spreading film fertilization method buries a certain number of grass handles in the concentrated distribution area of ​​the fruit tree absorption roots and covers the plastic film so that the applied fertilizer water is temporarily stored to reduce the loss and gradually release nutrients and moisture. The annual fruit tree fertilizer supply will be stable, and the growth and development of fruit trees will be significantly improved to achieve the objective of increasing production and tree growth. It usually takes place every year from budding to after flowering.
The specific operations are: large trees can be set up 4 to 8 points, saplings set up two points, the general diameter of the hole is 25 to 30 cm, the depth of the hole is 35 to 45 cm, and the bundled straw handles are used as straws or weeds. However, the grass bundles 15 to 25 centimeters in diameter, 30 to 35 centimeters in length, and is immersed in water before being buried). Apply superphosphate at the bottom of the hole, 50 to 100 grams per hole. When backfilling the soil, it should be practical. When the top of the grass is covered with soil to 1cm, apply 50~100g of urea, such as ammonium bicarbonate, in the backfill soil. The ground is applied at 20 cm. Then fill the soil, then water, and then cover the soil. After the hole is buried, it is 1-2 centimeters below the ground and a small amount of water is formed. After that, it is covered with a plastic film and a small hole is put through the film in the center of the hole to press a small stone to collect rainwater and water.
Greenhouse Wet Pad For Cooling System
"Wet curtain - fan" of the vertical ventilation cooling combination is the most economical and effective measures to cool the greenhouse in summer.
Years from the application of a real show, even in the heat of the day reported, the rational design and installation of a fan of wet curtain cooling system can still control the greenhouse temperature at 30 °C, in order to heat the greenhouse to reduce the adverse effects minimum. In the summer, your production needs Jienuo wet curtain to help.
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JIANGSU SKYPLAN GREENHOUSE TECHNOLOGY CO.,LTD , https://www.skyplantgreenhouse.com