Precautions administration of ferrous sulfate

What it should be noted that when administered ferrous sulfate. See today's article. If watering basin, although some effect concentration of 0.2% to 0.5% ferrous sulfate solution, but buried in the water soluble iron will soon be fixed and become insoluble iron-containing compounds and failure. To avoid soil iron is fixed, can be 0.2% ~ O.3% solution of ferrous sulfate spray to the foliage of the method, the effect is better than watering method. However, due to iron in the body mobility small flowers, only the iron solution after spraying puffing near the leaves turn green, the foliage should be continuous spray 2 or 3 times, in order to obtain better results. Flower growing season in ferrous sulfate mixed with organic fertilizer retting maturity formulated as alum fertilizer application diluted 10 to 15 times, the effect is good. Note also that the administration of ferrous sulfate, which can not be spread in the basin surface, it will easily be oxidized into ferric failure. Ferrous sulfate soluble in water, should be used with the distribution, should not go far to oxidation and failure. In addition, if administered ferrous sulfate concentration is too large, not only for the flowers useless, but harmful. We must pay more attention to family. Articles are selected from: http: //www.zbliusuanyatie.com