Mukesh Kumar1*, Ram Naresh1, Sundeep K. Antil1, Kuldeep Singh1, Sanjay Kumar1
and R.K. Jhorar1
1Department of Soil and Water Engineering, CCS HAU Hisar
Email: mukeshdandi@yahoo.com
Received-07.01.2022, Revised-23.01.2022, Accepted-30.01.2022
Abstract: An experiment was conducted, during (Jan-May) 2018, to study the soil water dynamics in drip irrigated onion crop, subjected to treatments comprises of lateral spacing (two levels viz. 45 cm and 60 cm) and lateral placement depth (two levels viz. surface and subsurface) arranged in split-plot-design. With each treatment replicated thrice, the experiment laid in 12 micro plots, already filled with sandy loam soil. Periodic field observations were made to study the soil moisture distribution. During the study, it was observed that soil moisture content tended to decrease with increase in radial distance from the drip lateral at all soil depths and tended to decrease with increase in soil depth at all the radial distances, during whole crop period, in all treatments, irrespective of the lateral spacing and lateral placement depth. It may be concluded from the study that for cultivation of drip irrigated onion in sandy loam soils, closer lateral spacing (45 cm) offers better soil moisture distribution, as compared to wider lateral spacing (60 cm) where as shallow lateral placement depth (5 cm) didn’t much affect the soil moisture distribution.
Keyword: Lateral spacing, Lateral placement depth
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