| 摘要 |
Compositions and methods for lowering the pH of soil are provided wherein t he compositions comprise ammonium sulfate, elemental sulfur, and a micronutrien t selected from the group consisting of zinc, iron, manganese, copper, boron, cobalt, vanadium, selenium, silicon, nickel, and mixtures thereof. In the preferred embodiment , the compositions are in granulated form and are applied to the soil so as to cre at lower pH microenvironments within the soil without decreasing the pH of the overall bulk soil surrounding the microenvironments. In the microenvironments, the micronutrients are readily available to the roots of plants and are taken up by the plants with increased efficiency, thus reducing the quantity of micronutrients required to be applied to the soil.
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