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

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Title Influence of Inorganic Fertilizers and Organic Amendments on Plant Nutrients and Soil Enzyme Activities under Incubation
Not Available
 
Creator R. Srinivasan, K. Jeevan Rao, S. K. Reza, Shelton Padua, D. Dinesh and S. Dharumarajan
 
Subject Nutrients, manures, fertilizer, urease, Nutrients, manures, fertilizer, urease
 
Description Not Available
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
Not Available
 
Date 2020-05-22T07:19:50Z
2020-05-22T07:19:50Z
2016-07-25
 
Type Research Paper
 
Identifier 2
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/36125
 
Language English
 
Relation Not Available;
 
Publisher International Journal of Bio-resource and Stress Management