Influence of Inorganic Fertilizers and Organic Amendments on Plant Nutrients and Soil Enzyme Activities under Incubation

Authors

  • R. Srinivasan National Bureau of Soil Survey and Land Use Planning, Sector-II, Block-DK, Salt Lake, Kolkata, West Bengal (700 091), India
  • K. Jeevan Rao ANGRAU, College of Agriculture, Rajendranagar, Hyderabad, Telengana State (500 030), India
  • S. K. Reza National Bureau of Soil Survey and Land Use Planning, Sector-II, Block-DK, Salt Lake, Kolkata, West Bengal (700 091), India
  • Shelton Padua National Bureau of Soil Survey and Land Use Planning, Jamuguri Road, Jorhat, Assam (785 004), India
  • D. Dinesh ICAR-Indian Institute of Soil & Water Conservation, Ooty, Tamil Nadu (643 001), India
  • S. Dharumarajan ICAR-NBSS&LUP, Regional Centre, Hebbal, Bangaluru, Karnataka (560 024), India

Keywords:

Nutrients, manures, fertilizer, urease, phosphatase, dehydrogenase activity

Abstract

An incubation experiment was carried out in the department of Soil Science and Agricultural Chemistry, ANGRAU, Hyderabad, India during 2013−14 with 12 treatments including control to study the mineralization pattern and timely release of nutrients (N, P, K and soil enzymes) to plant from different sources and periods. Mineralization of nitrogen (NH4+-N and NO3--N), phosphorus (P2O5) potassium (K2O) and soil enzymes (urease, acid and alkaline phosphatase and dehydrogenase) activities from different treatments were evaluated. During initial period 7 to 21 days after incubation (DAI), the recommended dose of fertilizer (RDF) had maximum release of NH4+-N and NO3--N  and later on decreased in the succeeding days but manures combination treatment has taken lead to release the N from 1 DAI  to 70 DAI than control. Similar trends were followed in available P2O5 and K2O. The maximum quantity of urease and DHA were reached 203 to 227 µg NH4+-N g-1 soil h-1 and 10.6 to12.4 µg TPF g-1 soil h-1 from combination of poultry manure and neem cake at 70 DAI, respectively. Maximum released of acid and alkaline phosphatase were observed in 21 DAI and 35 DAI  in RDF respectively. Among the manures treatment, PM+NC had superior in releasing of alkaline phosphatase over other, followed by poultry manure and FYM+PM. Correlation study between nutrients (N, P and K) and enzymes activity showed that a significant (p<0.05) positive relationship with each others.

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Published

2023-06-09

How to Cite

1.
Srinivasan R, Rao KJ, Reza SK, Padua S, Dinesh D, Dharumarajan S. Influence of Inorganic Fertilizers and Organic Amendments on Plant Nutrients and Soil Enzyme Activities under Incubation. IJBSM [Internet]. 2023 Jun. 9 [cited 2025 Sep. 13];7(Aug, 4):924-32. Available from: https://ojs.pphouse.org/index.php/IJBSM/article/view/916

Issue

Vol. 7 No. Aug, 4 (2016)

Section

Articles

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