Yield and nitrogen use efficiency of rice-wheat cropping system in gypsum amended saline-sodic soil

It is critical to determine nitrogen use efficiency (NUE) to find to which extent higher rates of nitrogen can improve crop yield with effective management practices. Two-year field experiments were conducted to investigate yield and NUE of rice-wheat cropping system on saline-sodic soil. Treatments...

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Autores principales:	Murtaza,B, Murtaza,G, Imran,M, Amjad,M, Naeem,A, Shah,G. M
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2017
Materias:	Amelioration nitrate leaching saline-sodic soil nitrogen use efficiency gypsum
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162017000300011
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spelling	oai:scielo:S0718-951620170003000112017-10-13Yield and nitrogen use efficiency of rice-wheat cropping system in gypsum amended saline-sodic soilMurtaza,BMurtaza,GImran,MAmjad,MNaeem,AShah,G. M Amelioration nitrate leaching saline-sodic soil nitrogen use efficiency gypsum It is critical to determine nitrogen use efficiency (NUE) to find to which extent higher rates of nitrogen can improve crop yield with effective management practices. Two-year field experiments were conducted to investigate yield and NUE of rice-wheat cropping system on saline-sodic soil. Treatments included were two nitrogen (N) application rates, i.e. 15% (N115)and 30% (N130) higher than the recommended rates for normal soil, along with gypsum at the rates of 50% (SGR50) and 100% (SGR100) of soil gypsum requirement. Results revealed relatively highest NO3- leaching for rice (161 and 145 mg L-1) and for wheat (97 and 93 mg L-1) during 2011-12 and 2012-13, respectively in N130 + SGR100. In this treatment, crop yield and NUE were the highest as compared to the other combinations. This resulted in reduction of yield gap by two-fold (53% to 26%) between saline-sodic and normal soils for rice-wheat. Interestingly, N130 + SGR100 proved most effective during the first year, however, N100 + SGR100 became more profitable in the subsequent year. Pearson correlation coefficients predicted significant positive correlation (p < 0.01) of yield and NUE with soil organic matter, cation exchange capacity and infiltration rate while inverse relationship was observed with electrical conductivity, pH, CaCO3, and bulk density. Based on data, it is concluded that the recommended N application together with SGR100 would be environmental-friendly and economically viable option for rice-wheat cropping system in saline-sodic soils.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.17 n.3 20172017-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162017000300011en10.4067/S0718-95162017000300011
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Amelioration nitrate leaching saline-sodic soil nitrogen use efficiency gypsum
spellingShingle	Amelioration nitrate leaching saline-sodic soil nitrogen use efficiency gypsum Murtaza,B Murtaza,G Imran,M Amjad,M Naeem,A Shah,G. M Yield and nitrogen use efficiency of rice-wheat cropping system in gypsum amended saline-sodic soil
description	It is critical to determine nitrogen use efficiency (NUE) to find to which extent higher rates of nitrogen can improve crop yield with effective management practices. Two-year field experiments were conducted to investigate yield and NUE of rice-wheat cropping system on saline-sodic soil. Treatments included were two nitrogen (N) application rates, i.e. 15% (N115)and 30% (N130) higher than the recommended rates for normal soil, along with gypsum at the rates of 50% (SGR50) and 100% (SGR100) of soil gypsum requirement. Results revealed relatively highest NO3- leaching for rice (161 and 145 mg L-1) and for wheat (97 and 93 mg L-1) during 2011-12 and 2012-13, respectively in N130 + SGR100. In this treatment, crop yield and NUE were the highest as compared to the other combinations. This resulted in reduction of yield gap by two-fold (53% to 26%) between saline-sodic and normal soils for rice-wheat. Interestingly, N130 + SGR100 proved most effective during the first year, however, N100 + SGR100 became more profitable in the subsequent year. Pearson correlation coefficients predicted significant positive correlation (p < 0.01) of yield and NUE with soil organic matter, cation exchange capacity and infiltration rate while inverse relationship was observed with electrical conductivity, pH, CaCO3, and bulk density. Based on data, it is concluded that the recommended N application together with SGR100 would be environmental-friendly and economically viable option for rice-wheat cropping system in saline-sodic soils.
author	Murtaza,B Murtaza,G Imran,M Amjad,M Naeem,A Shah,G. M
author_facet	Murtaza,B Murtaza,G Imran,M Amjad,M Naeem,A Shah,G. M
author_sort	Murtaza,B
title	Yield and nitrogen use efficiency of rice-wheat cropping system in gypsum amended saline-sodic soil
title_short	Yield and nitrogen use efficiency of rice-wheat cropping system in gypsum amended saline-sodic soil
title_full	Yield and nitrogen use efficiency of rice-wheat cropping system in gypsum amended saline-sodic soil
title_fullStr	Yield and nitrogen use efficiency of rice-wheat cropping system in gypsum amended saline-sodic soil
title_full_unstemmed	Yield and nitrogen use efficiency of rice-wheat cropping system in gypsum amended saline-sodic soil
title_sort	yield and nitrogen use efficiency of rice-wheat cropping system in gypsum amended saline-sodic soil
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162017000300011
work_keys_str_mv	AT murtazab yieldandnitrogenuseefficiencyofricewheatcroppingsystemingypsumamendedsalinesodicsoil AT murtazag yieldandnitrogenuseefficiencyofricewheatcroppingsystemingypsumamendedsalinesodicsoil AT imranm yieldandnitrogenuseefficiencyofricewheatcroppingsystemingypsumamendedsalinesodicsoil AT amjadm yieldandnitrogenuseefficiencyofricewheatcroppingsystemingypsumamendedsalinesodicsoil AT naeema yieldandnitrogenuseefficiencyofricewheatcroppingsystemingypsumamendedsalinesodicsoil AT shahgm yieldandnitrogenuseefficiencyofricewheatcroppingsystemingypsumamendedsalinesodicsoil
_version_	1714206552471109632

Yield and nitrogen use efficiency of rice-wheat cropping system in gypsum amended saline-sodic soil

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