International Journal of Chemical Studies
Vol. 5, Issue 3 (2017)
Long-term effects of organic manures and fertilizers on soil enzymes activity
Author(s): Sanjay KR Kashyap and Kiran K Khokhar
Abstract: A field experiment was conducted during 2014-15 at Agronomy Research Farm of CCS Haryana Agricultural University, Hisar (India) on an ongoing long term (29 years) experiment which was initiated in 1985. Seven treatments were laid out in randomized block design with three replications. The seven treatments were control (T1), 50% RDF through NPK (T2), 100% RDF through NPK (T3), 50% RDF through NPK+ 50% N through FYM (T4), 50% RDF through NPK + 50 % N through wheat straw (T5), 50% RDF through NPK+ 50% N through green manure (T6) and farmer’s practice (T7). The cropping system adopted was of pearl millet and wheat. Enzymes activity was found higher in organic manure amended treatments. The maximum urease (89 µg NH4+/g soil/hr) and alkaline phosphatse (711 µg PNP/g soil/hr) activity were found in wheat straw amended treatment. The dehydrogensae activity was higher in FYM applied plots which was 78 µg TPF/g soil/24 hr.
Pages: 449-452 | 753 Views 15 Downloads
How to cite this article:
Sanjay KR Kashyap, Kiran K Khokhar. Long-term effects of organic manures and fertilizers on soil enzymes activity. Int J Chem Stud 2017;5(3):449-452.