Journal of FARM SCIENCES, Vol 30, No 1 (2017)

Font Size:  Small  Medium  Large

Fertility status of soil along the water course of selected distributory-4 of Shahapur branch canal of UKP command area

CHANDRAGOUDA GIRIGOUDAR, H. V. RUDRAMURTHY, N. L. RAJESH

Abstract


Available nitrogen content was comparatively more in surface soils than in sub surface soils all along the watercourse of distributory-4. Available phosphorous status in soils at the tail reach was comparatively more than that of headreach. Irrespective of surface and sub surface soils available potassium status was medium and was comparatively low insub surface than in surface soils. However increasing trend of potassium from head to tail via middle reach along the watercourse was observed. Available sulphur status was medium in surface and low in sub surface soils all along the water course.Available nitrogen, phosphorous, potassium and sulphur were strongly correlated with organic carbon (0.950, 0.989, 0.986and 0.989), CEC (-0.838, -0.925, -0.970 and 0.948) and dehydrogenase activity (0.934, 0.979, 0.980 and 0.982). Higherconcentration of DTPA extractable micronutrients namely, Fe, Cu and Zn in surface than in sub surface soils was observedall along the water course. However fertility status of soils along the water course was low with respect to both availableN and P, medium with respect to available K, S, Fe and Zn while high with respect to available Cu and Mn.

Full Text: PDF