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Utilization of Nano Rock Phosphate by Maize (Zea mays L.) Crop in a Vertisol of Central India.

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Title Utilization of Nano Rock Phosphate by Maize (Zea mays L.) Crop in a Vertisol of Central India.
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Creator Adhikari T., Kundu S., Meena V. D. and Rao A. S.
 
Subject Nano RP, P uptake, biomass yield, apparent phosphorus recovery
 
Description Not Available
An attempt was made in the present investigation to utilize the vast deposit of rock phosphate (RP) of India by preparing
nano RP using modern tool of nano-science and nano-technology for field application to maize crop (Zea mays L.). To evaluate the
efficacy of different nano RP, a field experiment was conducted during kharif season (June to September) of 2012 at India Institute of
Soil Science (IISS), Bhopal, taking maize as a test crop. The experiment consisted of five treatments (control, NK (100%), NPK
(100%), NK (100%) + 60 kg P2O5) as nano RP through Udaipur nano RP (34% P2O5) and Udaipur nano RP (31% P2O5) were tested
in randomized block design with four replications. The results showed that the shelling percentage, 1,000 grain weight, grain and
stover yield, etc., were significantly higher in the maize plant treated with Udaipur nano RP (34% P2O5) as compared to the control,
which was being at par with single super phosphate (SSP) treated plants. The total P content and its uptake were higher (0.65% and
40.29 kg/ha) in SSP treated plant, which was closely followed by Udaipur nano RP 34% (0.63% and 38.29 kg/ha) over the control
(0.60% and 27.82 kg/ha). The SSP treated plants had significantly highest apparent P recovery (47.98%) which was comparable to
Udaipur nano RP (34% P2O5), where as the Udaipur nano RP (31% P2O5) had the lowest. The additional N and K uptake by the plant
was also observed with application of P sources, which were ranged from 16.5 kg/ha to 37.2 kg/ha and 27.9 kg/ha to 64.7 kg/ha
under different P treatments. These results showed that crop utilization of P from nano RP was at par with that of P from SSP while
yield response to P from nano RP was marginally lower than to P from SSP but serve as a cheaper source.
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Date 2020-05-21T09:51:23Z
2020-05-21T09:51:23Z
2014
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/36064
 
Language English
 
Relation Not Available;
 
Publisher Not Available