Effect of organic manures and biofertilizers on soil enzyme activities under black pepper (Piper nigrum L.)

Abstract

The experiment was conducted to evaluate the effects of organic manures and biofertilizers on soil enzyme activities under Black pepper (Piper nigrum L.) cultivating soils at Horticultural Research Station (TNAU), Yercaud, Salem District. During the study period, the higher available nitrogen content of 168.19 kg ha-1 was recorded in the treatment T3. Higher avilable phosphorous content of 8.35 kg ha-1 was recorded in the treatment T2 and higher avilable potassium (224.32 kg ha-1) content was recorded in T5. Among all the treatments, T5 had significantly higher amount of urease, phosphatase and dehydrogenase activities. The combined application FYM, Azospirillum, Phosphobacteria and VAM have a great impact on soil nutrients and enzyme activities under Black pepper (Piper nigrum L.) cultivating soil.