Chemistry: fertilizers – Processes and products
Reexamination Certificate
2005-08-26
2009-08-04
Nguyen, T. (Department: 3644)
Chemistry: fertilizers
Processes and products
Reexamination Certificate
active
07569091
ABSTRACT:
The present invention provides 1) a convenient and novel method for prescribing constituent nutrients in a compound fertilizer that takes into account ambient concentrations of one or more of the nutrients in the irrigation water; 2) a convenient and novel method of prescribing the constituents of compound fertilizers based on predetermined ratios between a desired final concentration of an index nutrient and a desired concentration of at least one non-index nutrient; and, 3) a convenient and novel method of formulating compound fertilizers by providing a graduated series of stocks that accommodate wide variation in ambient concentrations of an index nutrient in local irrigation waters.
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Nguyen T.
O'Brien Denis
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