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Phosphorus Enriched Organic Amendments can Increase Nitrogen Use Efficiency in Wheat

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Title Phosphorus Enriched Organic Amendments can Increase Nitrogen Use Efficiency in Wheat
Not Available
 
Creator Siddhartha Sankar Biswas
Avijit Ghosh
Sunil Kumar Singhala,
sunil Kumar Singhala,
Trisha Roy
Abhijit Sarkar
Debarup Das
 
Subject Release kinetics; farmyard manure; rock phosphate enriched compost; nitrogen use efficiency
 
Description Not Available
Although nitrogen (N) has the highest requirement for plant growth, N use
efficiency (NUE) seldom exceeds 40%. NUE may be improved by integrated
application of fertilizer N and enriched organic amendments. The present experiment
aimed to test the extent of increase in NUE by integrated application of
fertilizer N farmyard manure (FYM) and rock phosphate enriched compost
(RPEC). Mineralization kinetics and N release from FYM and RPEC were studied
by an incubation experiment. Results revealed that maximumpotentiallymineralizable
N as well as N release (283.9, 186.7 mg kg−1 soil, respectively) were from
RPEC + fertilizer N treated soils, followed by FYM + fertilizer N. Maximum yield,
N uptake, and N recovery were obtained from RPEC + fertilizer N treated soils
followed by FYM + fertilizer N. Soils treated with RPEC had shown significantly
higher dehydrogenase activity than FYM treated soils. Thus, RPEC might increase
yield as well as NUE over FYM. N uptake by plant at maximumtillering stage and
flowering stage of wheat correlated positively (R2 > 0.85) with the decay rate
(k and kN0) parameter of incubation experiment suggesting their relevance as
indicators of plant available N.
Not Available
 
Date 2020-07-16T04:36:15Z
2020-07-16T04:36:15Z
2019-03-06
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/38159
 
Language English
 
Relation Not Available;
 
Publisher Not Available