Delivery of bioactive molecules in coatings or surface layers of organically enhanced inorganic fertilizers
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United States of America Patent
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Jun 4, 2024
Grant Date -
May 14, 2020
app pub date -
Nov 13, 2019
filing date -
Nov 14, 2018
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Abstract
The invention is directed to coated fertilizer granules and methods for manufacturing granules and using organically enhanced inorganic fertilizer granules, which incorporate a coating of one or more concentric layers over a core such that the coating contains a bioactive agent such as a herbicide, pesticide, plant growth regulator, microorganism, or beneficial element. Application of the coating to the fertilizer granule preferably involves binding of the bioactive agent to the surface of granule or to the organic components within the granule. The release of the bioactive agent from the coating and or the surface of the granule preferably results in a two-phased release, a first fast release and a second extended or slow-release of the bioactive agent into the soil metering the bioavailability of the bioactive agent for crop growth or protection, and/or for controlling unwanted vegetation or pests.
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