rrigation Water Productivity and Potato (Solanum tuberosum L.) Yield in Different Planting Methods under Mulch Conditions
Journal of Agriculture and Ecology Research International,
To investigate the effect of planting methods i.e. drip irrigated beds (DIB+M), furrow irrigated beds (FIB+M) and ridge (R+M) methods under mulch condition at different irrigation regimes on irrigation water productivity and potato (Solanum tuberosum L.) yield, a field experiment was conducted in sandy loam soil at the Research Farm of Department of Soil Science, Punjab Agricultural University, Ludhiana. Three irrigation levels based on IW/PAN-E ratios of 1.2, 1.6 and 2.0 were tested under FIB+M and R+M, while 0.3, 0.4 and 0.5 were tested under DIB+M. The treatments were replicated thrice a time with split plot design. Paddy straw mulch was applied @ 6 t ha-1 in all the treatments. The potato tuber yield increases with increase in irrigation level for all the methods. The highest mean tuber yield of 26.5 t ha-1 was recorded in DIB+M at IW/PAN-E 0.5, followed by FIB+M (24.2 t ha-1) and R+M (22.6 t ha-1) at equivalent IW/PAN-E ratio 2.0. Potato biomass yield and irrigation water productivity (IWP) was also observed to be highest under DIB+M. The IWP decreases with increase in irrigation level. The results revealed that DIB+M at IW/PAN-E ratio of 0.5 could successfully be used for potato cultivation with water saving and higher productivity.
- water productivity
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