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Effect of organic and inorganic sources of nutrients on soil microbial activity and soil organic carbon build up under rice in west coast of India

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Title Effect of organic and inorganic sources of nutrients on soil microbial activity and soil organic carbon build up under rice in west coast of India
Not Available
 
Creator Mahajan GR, Manjunath BL, Singh NP, Ramesh R, Verma RR, Latare AM, Ruenna D’Souza, Barnes Natasha, Kulkarni R
 
Subject Carbon build-up
microbial biomass carbon;
metabolic quotient
rice (Oryza sativa);
soil enzyme activities
 
Description Not Available
Not AvThe effect of medium-term (5 years) application of organic and inorganic
sources of nutrients (as mineral or inorganic fertilizers) on soil organic
carbon (SOC), SOC stock, carbon (C) build-up rate, microbial and enzyme
activities in flooded rice soils was tested in west coast of India. Compared
to the application of vermicompost, glyricidia (Glyricidia maculate) (fresh)
and eupatorium (Chromolaena adenophorum) (fresh) and dhaincha
(Sesbania rostrata) (fresh), the application of farmyard manure (FYM) and
combined application of paddy straw (dry) and water hyacinth (PsWh)
(fresh) improved the SOC content significantly (p < 0.05). The lowest
(p < 0.05) SOC content (0.81%) was observed in untreated control. The
highest (p < 0.05) SOC stock (23.7 Mg C ha−1) was observed in FYM-treated
plots followed by recommended dose of mineral fertilizer (RDF) (23.2
Mg C ha−1) and it was lowest (16.5 Mg C ha−1) in untreated control. Soil
microbial biomass carbon (Cmb) (246 μg g−1 soil) and Cmb/SOC (1.92%)
were highest (p < 0.05) in FYM-treated plot. The highest (p < 0.05) value of
metabolic quotient (qCO2) was recorded under RDF (19.7 μg CO2-C g−1 Cmb
h−1) and untreated control (19.6 μg CO2-C g−1 Cmb h−1). Application of
organic and inorganic sources of nutrients impacted soil enzyme activities
significantly (p < 0.05) with FYM causing highest dehydrogenase (20.5 μg
TPF g−1 day−1), phosphatase (659 μg PNP g−1 h−1) and urease (0.29 μg urea
g−1 h−1) activities. Application of organic source of nutrients especially FYM
improved the microbial and enzyme activities in flooded and transplanted
rice soils. Although the grain yield was higher with the application of RDF,
but the use of FYM as an organic agricultural practice is more useful when
efforts are intended to conserve more SOC and improved microbial activity.ailable
Indian Council of Agricultural Research
 
Date 2018-11-09T05:07:39Z
2018-11-09T05:07:39Z
2016
 
Type Research Paper
 
Identifier Not Ava Mahajan Gopal Ramdas, Manjunath B. L., Singh Narendra Pratap, Ramesh R, Verma R. R, Latare Ashish Marutrao, D’Souza Ruenna, Barnes Natasha & Kulkarni Rahul (2017) Effect of organic and inorganic sources of nutrients on soil microbial activity and soil organic carbon build-up under rice in west coast of India, Archives of Agronomy and Soil Science, 63:3, 414-426, DOI: 10.1080/03650340.2016.1213813 ilable
0365-0340
http://krishi.icar.gov.in/jspui/handle/123456789/9789
 
Language English
 
Relation Not Available;
 
Publisher Archives of Agronomy and Soil Science, Taylor and Francis