Chemistry: fertilizers – Processes and products – Inorganic material
Patent
1998-09-28
2000-10-17
Langel, Wayne
Chemistry: fertilizers
Processes and products
Inorganic material
71 63, 71 6413, C05D 902
Patent
active
06132485&
ABSTRACT:
Compositions and methods for lowering the pH of soil are provided wherein the compositions comprise ammonium sulfate, elemental sulfur, and a micronutrient 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 create 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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Follett et al., Fertilizers and Soil Amendments, pp. 357, 365, 371, 377, 390 (1981), (no month).
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