IMPACT OF SUBSURFACE DRAINAGE SYSTEM ON SOIL CHEMICAL PROPERTIES AND CROP YIELD IN UPPER KRISHNA COMMAND
Journal Title: International Journal of Agriculture Sciences - Year 2016, Vol 8, Issue 51
Abstract
A study was conducted to check the impact of subsurface drainage system on salt affected soils in the UKP command, Karnataka. The mean pH of samples ranged from 8.21 to 8.71 before sowing to 8.58 to 8.95 after harvesting and before sowing the electrical conductivity ranged from 8.84 to 12.09 dS m-1 and 7.25 to 12.06 dS m-1 after harvesting. Similarly, the Ca2++Mg2+, Na+ and K+ values were in the range of 34.68 to 39.76, 7.80 to 10.92 and 0.12 to 0.16 Meq/100g before sowing of crops, after harvesting of the crops results obtained were in range of 34.44 to 37.62, 7.10 to 9.40 and 0.20 to 0.27 Meq/100g. The ESP values were in the range of 17.99 to 21.45 before sowing and 17.07 to 19.90 after harvesting of crop. A glance at an results reveals that pH and K+ was observed to be increased due to sodic nature of soil and excess application of the fertilizer. ESP was noticed to be reduced in smaller amount as compared to pre-sowing conditions, gypsum needed to be applied in required amount in order to turn the soil from sodicity to saline or non-saline soils. Finally, the yield was observed to be 62.00 q ha-1 as compare to pre drainage conditions of 42.01 q ha-1.
Authors and Affiliations
RAHUL PATIL
Keywords
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