In modern farming systems,
fertigation is widely practiced as a cost effective and convenient method for
applying soluble fertilizers to crops. Along with efficiency and adequacy,uniformity is an important fertigation performance evaluation criterion.
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| Fertigation |
Fertigation uniformity is
defined here as a composite parameter consisting of irrigation and fertilizer
application uniformity indicators. The field and computational procedures for
sprinkler irrigation uniformity evaluation has been the subject of various
studies. The objective of the study reported in this paper, however, is the
development of an analytical framework for the evaluation and analyses of
test-plot scale fertilizer application uniformity under solid-set sprinkler
irrigation systems. Irrigation uniformity indices are adapted for use in
fertilizer application uniformity evaluation. Fertilizer application rate,
given as a function of irrigation depth and fertilizer concentration, is
identified as the appropriate variable to express fertilizer application
uniformity indices. Pertinent mathematical properties of the uniformity indices
along with their practical fertigation management implications are outlined. Read more>>>>>>>
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