Slowrelease Fertilizers

Slow-release fertilizers are used primarily in the turf, sod and ornamental nursery industries. Since plants can take up nutrients continuously, it may be beneficial to provide them with a somewhat steady supply throughout their most active periods of growth. Perhaps the most efficient way to achieve this is to apply a slow-release fertilizer designed to release nutrients at rates matching the specific plant nutrient requirements. Slow-release fertilizers contain one or more nutrients. These elements are released or made available for plant use ov extended time period. The slow-release materials are generally too costl;

in agronomic cropping systems. Ongoing research efforts explore the potential for use of these materials as in-furrow starter fertilizers because of their relatively low salt index.

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