As a base fertilizer, zinc fertilizer and organic fertilizer, physiological acid fertilizer and fine soil can be mixed and used. The ability of zinc to move in the soil is poor and should be turned into the soil with the arable land. Zinc has a long-lasting effect in soil and can be applied every other year. Roots are rooted with a solution of zinc oxide (0.1% to 0.2% concentration), but rooting time is not too long, usually 3 minutes, too long will produce phytotoxicity. Soaking the zinc sulphate into 0.02% to 0.05% of the solution, seeds and soaking liquid to 1:1 is appropriate, soaked 6 to 12 hours after the fish and dried (should not be exposed to sunlight, should be dry). The seed dressing uses a small amount of water to dissolve the zinc fertilizer, and then dilutes it with fresh water. When the seeds are seeded, all the seeds are soaked with the zinc liquid. The solution should not be too much. Finally, the entire solution can be completely absorbed. Outside the root dressing fertilizer with 50 to 100 grams per gram of zinc sulfate, dissolved in water and then weighed 50 kilograms, after 4 pm for foliar spray. During spraying, if the concentration is too high to damage the leaves, it is best to add 0.2% slaked lime to adjust the pH of the solution. Non Medical Mask,Personal Protective Mask,Earloop Protective Face Mask,Ladies Mask CE 0598 MA-009 Zhejiang Minan Medical Supplies Co.,Ltd , https://www.minanmask.com