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Citric acid loaded nano clay polymer composite for solubilization of Indian rock phosphates: a step towards sustainable and phosphorus secure future

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Title Citric acid loaded nano clay polymer composite for solubilization of Indian rock phosphates: a step towards sustainable and phosphorus secure future
Not Available
 
Creator Trisha Roy
Dipak Ranjan Biswas
Chandra Datta,
, Abhijit Sarkar,
Siddhartha Sankar Biswas
 
Subject Organic acid; nanoclay polymer composite; indigenous rock phosphates; inorganic P fractions; P solubilization
 
Description Not Available
Non-renewable nature of rock phosphate (RP) reserves coupled with open
ended nature of P cycle makes it imperative for maximum utilization of
available P resources. In this context, use of Indian RPs from Purulia and
Udaipur along with citric acid loaded nanoclay polymer composite (CA-NCPC)
as P source to costly diammonium phosphate (DAP) was investigated
through an incubation experiment followed by a greenhouse experiment
with wheat-rice cropping sequence in a Luvisol (pH 5.14, available P 13.5 mg
kg−1). Soil available P, crop yield parameters and dynamics of soil P fractions
were taken to judge the efficacy of CA-NCPC in solubilizing RPs. Application
of CA-NCPC and DAP resulted in 82% and 69% increase in available P over
control, respectively under incubation study. Direct effect of treatment receiving
CA-NCPC + RP on yield and P uptake by wheat was comparable with DAP
but residual impact of CA-NCPC + RP (16.7 g pot−1) was better than DAP
(13.8 g pot−1) in rice. The changes in inorganic P fractionswere also significant
as inclusion of RP increased calcium-P from 16.1 to 61.5 mg kg−1. Results
indicated potentiality of RPs treated with CA-NCPC as an alternate P source
which could prove promising amidst P scarcity.
Not Available
 
Date 2020-06-12T09:31:18Z
2020-06-12T09:31:18Z
2018-02-19
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/37110
 
Language English
 
Relation Not Available;
 
Publisher Not Available