First, bagging protection, seedling protection. The seedlings that have been planted in orchards can be covered with snakeskin bags or washed ammonium bicarbonate bags, and the seedlings are also covered; in addition, the growers who concentrate the seedlings cover the seedlings with a film in the form of arches and cover the straw under the canopies. Or mulch, etc., in order to keep the frost ice frozen.
Second, increase the temperature with smoke, insulation frost. Before the frost came, the orchards prepared chaff, sawdust, turf, leaves, dead wood, weeds, etc. as fuel, and set about 5 cigarettes per acre to ignite on the eve of the frost.
Third, cover. Cover 10-20 cm with straw, straw, etc. around the tree tray, or cover it with plastic film, and use straw to wrap the trunk to increase the soil temperature and protect the tree. The available thin film can cover the entire tree.
Fourth, irrigation method. Before the frost comes, watering the roots in the canopy drip line can transfer the temperature of the lower layer of the soil. At the same time, the water can absorb the low temperature in the air, so that the root system can be protected from frost.
Fifth, spraying plant power 2008. Plant power was sprayed in time before and after the frost, and sprayed 2 to 3 times every 5 to 7 days. In order to improve the ability of fruit trees to resist cold, timely restoration of tree vigor.
Hot-dip galvanization is a form of galvanization. It is the process of coating iron and steel with zinc, which alloys with the surface of the base metal when immersing the metal in a bath of molten zinc at a temperature of around 840 °F (449 °C). When exposed to the atmosphere, the pure zinc (Zn) reacts with oxygen (O2) to form zinc oxide (ZnO), which further reacts with carbon dioxide (CO2) to form zinc carbonate (ZnCO3), a usually dull grey, fairly strong material that protects the steel underneath from further corrosion in many circumstances. Galvanized steel is widely used in applications where corrosion resistance is needed without the cost of stainless steel, and is considered superior in terms of cost and life-cycle.
Galvanized Steel Pipes,Galvanised Pipe,Galvanised Steel Pipe
JIANGSU SKYPLAN GREENHOUSE TECHNOLOGY CO.,LTD , https://www.greenhousehydroponic.com