INFLUENCE OF COIR PITH APPLICATION ON SOIL MOISTURE DISTRIBUTION WITH DIFFERENT IRRIGATION REGIMES OF AEROBIC RICE CULTIVATION UNDER TRICKLE IRRIGATION SYSTEM
DOI:
https://doi.org/10.59797/ija.v69i1.5325Keywords:
Coir pith, Aerobic rice, Soil moisture distribution, Trickle irrigation, Irrigation regimesAbstract
A field experiment was conducted during the summer of 2019 and 2020 at the AICRP Water Management field, Tamil Nadu Agricultural University, Madurai. Tamil Nadu, India. To study the effect of coir pith application on soil moisture distribution with different irrigation regimes viz., I1 - Trickle irrigation of 120 % Pan Evaporation (PE), 100 % PE, and 80 % PE. Separately, maintained the surface irrigation of IW/CPE 1.20. The making of soil moisture slope is basic to investigate the gainful impacts through the use of coir substance and it very well may be conceivable to water holding capacity and spreading area of water distribution from the emitter of trickle irrigation system. Accordingly, formed raised beds manually with 90 cm top bed width and 30 cm furrow width. The well-composed coir pith @ 375 kg/ha was spread over the raised beds and leveled well with surface soil. The lateral was laid out in the center of each bed and paddy seeds (var CO-51) were dibbled manually at 20 × 10 cm spacing. Soil samples were collected in vertical and horizontal directions and determining soil moisture by gravimetric method. Soil moisture appropriation was plotted graphically as contour maps used by the surfer. Revealed, trickle irrigation at 120 % PE with coir pith application improved the growth and yield attributes of aerobic rice compared to surface irrigation (IW/CPE 1.20) due to coir pith has favorable hydrological and physical properties to hold and spread the water in the raised bed area of aerobic rice cultivation under trickle irrigation system.
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