Abstract
The experiment was performed using beta radiation to estimate the water content (WC) of wheat (Triticum aestivum L.) having two nitrogen contents, i.e., 120 kgha−1 (N1) and 150 kgha−1 (N2), each at different irrigation regimes, i.e., irrigation at different stages of IW/CPE ratio 1.2 (I1), 0.9 (I2), and 0.6 (I3). Mass attenuation coefficient (μm) was used to evaluate WC and was more for dry leaves than for fresh leaves. The maximum WC was found in I2, followed by I1, and the minimum was in I3 for the both the nitrogen levels. It was shown that NI22 treatment would be the best management intervention for wheat crop because of the highest grain yield and minimal stress degree days. The radiation method is useful in WC estimation and can be effectively used in irrigation scheduling to conserve water.
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