In-season nitrogen prediction for the quality protein maize using the pocket hand-held NDVI sensor on farmers’ field around Ilu-Gelan and Bako-Tibe, Ethiopia
Abstract
121 words
The “pocket” hand-held Normalized Difference Vegetative Index (NDVI) sensor for inseason
highland quality protein maize nitrogen rate determination for side-dressing was
conducted in 2013cropping season on seven farmers’ field around Bako-Tibe and Elu-Gelan
districts. Six rates of N ranging from 0-150 kg ha-1were applied to a long season quality
protein maize (QPM) hybrid, Webii (AMH-760Q). Increased mean grain yield of was obtained
with increasing application rate of Nitrogen. Mean grain yield of quality protein maize
positively correlated with mean in season estimation of yield (INSEY). Significant relationship
was observed between mean leaf area and NDVI reading. Promising result was obtained in
current study, but further investigation needed for side dressing of nitrogen determination
and N use efficiency of quality protein maize.
Subjects
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