Vol. 9 (1) : January-February 2018 issue
Green Farming Vol. 9 (1) : 36-40 ; January-February, 2018
Changes in soil organic carbon content and enzymatic activities due to application of distillery spentwash R.O. Reject
ADIVEPPA MALLAPPA ASANGIa1*, C.A. SRINIVASAMURTHYb2 and B.C. MALLESHAc3
aDeptt. of Soil Sci. & Agricultural Chemistry, cDepartment of Agricultural Microbiology, College of Agriculture, University of Agricultural Sciences, GKVK, Bangalore - 560 065 (Karnataka),
bDirectorate of Research, Central Agricultural University, Imphal - 795 004 (Manipur)
1Ph.D. Scholar *(firstname.lastname@example.org), 2Director of Research, 3Professor
Subject : Soil Science & Agric. Chemistry; Soil Health & Soil Conservation Engg.
Paper No. : P-7119
Total Pages : 5
Received : 02 January 2018
Revised accepted : 25 January 2018
Buy this Article
ADIVEPPA MALLAPPA ASANGI, C.A. SRINIVASAMURTHY and B.C. MALLESHA. 2018. Changes in soil organic carbon content and enzymatic activities due to application of distillery spentwash R.O. Reject. Green Farming Vol. 9 (1) : 36-40 ; January-February, 2018
Distillery spentwash (DSW) R.O. Reject is a dark brown coloured liquid which contains major and micro-nutrients which are helpful for sustaining the soil fertility and the yield of crops. The dark brown colour of raw spentwash is due to the presence of melanoidin of cane molasses which is not decomposed effectively by yeast and methane bacteria in its activated sludge process. A field experiment was conducted to see the effect of this distillery spentwash R O reject on soil organic carbon content and enzymatic activity in soil during kharif 2013. The experiment consisted of seven treatments laid out in Randomized Complete Block Design with three replications. The experimental results indicated that the application of 150% N through distillery spentwash (DSW) R O reject increased the soil organic carbon content (0.83%) and activity of different enzymes like phosphatase (21.3 µg P-NPP g-1 of dry soil hr-1), dehydrogenase (9.1 µg TPF g-1 of dry soil hr-1) and urease (43.6 µg NH4-N g-1 of dry soil hr-1) compared to all other treatments. Significantly lower values of soil organic carbon content and activity of different enzymes were recorded in treatment receiving RDF only. It is concluded that application of distillery spentwash R O reject results in increased organic carbon content and enzyme activities.
Key words :
Dehydrogenase, Distillery, Maize, Organic carbon, Phosphatase, Urease.