Assessment of fertilizer management strategies aiming to increase nitrogen use efficiency of wheat grown under conservation agriculture
Sustainable crop production systems can be attained by using inputs efficiently and nitrogen use efficiency (NUE) parameters are indirect measurements of sustainability of production systems. The objective of this study was to investigate the effect of selected nitrogen (N) management treatments on wheat yields, grain and straw N concentration, and NUE parameters, under conservation agriculture (CA). The present study was conducted at the International Maize and Wheat Improvement Center (CIMMYT), in northwest, Mexico. Seventeen treatments were tested which included urea sources, timing, and methods of fertilizer application. Orthogonal contrasts were used to compare groups of treatments and correlation and regression analyses were used to look at the relationships between wheat yields and NUE parameters. Contrasts run to compare wheat yields or agronomic efficiency of N (AE(N)) performed similarly. Sources of urea or timing of fertilizer application had a significant effect on yields or AE(N) (p > 0.050). However, methods of application resulted in a highly significant (p < 0.0001) difference on wheat yields and agronomic efficiency of N. NUE parameters recorded in this study were average but the productivity associated to NUE levels was high. Results in this study indicate that wheat grew under non-critically limiting N supply levels, suggesting that N mineralization and reduced N losses from the soil under CA contributed to this favorable nutritional condition, thus minimizing the importance of N management practices under stable, mature CA systems.
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2018
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Subjects: | AGRICULTURAL SCIENCES AND BIOTECHNOLOGY, NUE, Nitrogen Recovery Efficiency, Nitrogen Physiological Recovery, Wheat Yields, Agrotain® Urea, CONSERVATION AGRICULTURE, NITROGEN, FERTILIZERS, WHEAT, CROP YIELD, |
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dig-cimmyt-10883-201002022-11-04T16:43:13Z Assessment of fertilizer management strategies aiming to increase nitrogen use efficiency of wheat grown under conservation agriculture Santillano-Cazares, J. Nuñez-Ramirez, F. Ruiz-Alvarado, C. Cardenas, M.A. Ortiz-Monasterio, I. AGRICULTURAL SCIENCES AND BIOTECHNOLOGY NUE Nitrogen Recovery Efficiency Nitrogen Physiological Recovery Wheat Yields Agrotain® Urea CONSERVATION AGRICULTURE NITROGEN FERTILIZERS WHEAT CROP YIELD Sustainable crop production systems can be attained by using inputs efficiently and nitrogen use efficiency (NUE) parameters are indirect measurements of sustainability of production systems. The objective of this study was to investigate the effect of selected nitrogen (N) management treatments on wheat yields, grain and straw N concentration, and NUE parameters, under conservation agriculture (CA). The present study was conducted at the International Maize and Wheat Improvement Center (CIMMYT), in northwest, Mexico. Seventeen treatments were tested which included urea sources, timing, and methods of fertilizer application. Orthogonal contrasts were used to compare groups of treatments and correlation and regression analyses were used to look at the relationships between wheat yields and NUE parameters. Contrasts run to compare wheat yields or agronomic efficiency of N (AE(N)) performed similarly. Sources of urea or timing of fertilizer application had a significant effect on yields or AE(N) (p > 0.050). However, methods of application resulted in a highly significant (p < 0.0001) difference on wheat yields and agronomic efficiency of N. NUE parameters recorded in this study were average but the productivity associated to NUE levels was high. Results in this study indicate that wheat grew under non-critically limiting N supply levels, suggesting that N mineralization and reduced N losses from the soil under CA contributed to this favorable nutritional condition, thus minimizing the importance of N management practices under stable, mature CA systems. 2019-04-02T22:49:38Z 2019-04-02T22:49:38Z 2018 Article 2073-4395 ISSN: 2073-4395 https://hdl.handle.net/10883/20100 10.3390/agronomy8120304 English CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the sutable license for that purpose. Open Access PDF Basel, Switzerland MDPI 12 8 Agronomy |
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AGRICULTURAL SCIENCES AND BIOTECHNOLOGY NUE Nitrogen Recovery Efficiency Nitrogen Physiological Recovery Wheat Yields Agrotain® Urea CONSERVATION AGRICULTURE NITROGEN FERTILIZERS WHEAT CROP YIELD AGRICULTURAL SCIENCES AND BIOTECHNOLOGY NUE Nitrogen Recovery Efficiency Nitrogen Physiological Recovery Wheat Yields Agrotain® Urea CONSERVATION AGRICULTURE NITROGEN FERTILIZERS WHEAT CROP YIELD |
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AGRICULTURAL SCIENCES AND BIOTECHNOLOGY NUE Nitrogen Recovery Efficiency Nitrogen Physiological Recovery Wheat Yields Agrotain® Urea CONSERVATION AGRICULTURE NITROGEN FERTILIZERS WHEAT CROP YIELD AGRICULTURAL SCIENCES AND BIOTECHNOLOGY NUE Nitrogen Recovery Efficiency Nitrogen Physiological Recovery Wheat Yields Agrotain® Urea CONSERVATION AGRICULTURE NITROGEN FERTILIZERS WHEAT CROP YIELD Santillano-Cazares, J. Nuñez-Ramirez, F. Ruiz-Alvarado, C. Cardenas, M.A. Ortiz-Monasterio, I. Assessment of fertilizer management strategies aiming to increase nitrogen use efficiency of wheat grown under conservation agriculture |
description |
Sustainable crop production systems can be attained by using inputs efficiently and nitrogen use efficiency (NUE) parameters are indirect measurements of sustainability of production systems. The objective of this study was to investigate the effect of selected nitrogen (N) management treatments on wheat yields, grain and straw N concentration, and NUE parameters, under conservation agriculture (CA). The present study was conducted at the International Maize and Wheat Improvement Center (CIMMYT), in northwest, Mexico. Seventeen treatments were tested which included urea sources, timing, and methods of fertilizer application. Orthogonal contrasts were used to compare groups of treatments and correlation and regression analyses were used to look at the relationships between wheat yields and NUE parameters. Contrasts run to compare wheat yields or agronomic efficiency of N (AE(N)) performed similarly. Sources of urea or timing of fertilizer application had a significant effect on yields or AE(N) (p > 0.050). However, methods of application resulted in a highly significant (p < 0.0001) difference on wheat yields and agronomic efficiency of N. NUE parameters recorded in this study were average but the productivity associated to NUE levels was high. Results in this study indicate that wheat grew under non-critically limiting N supply levels, suggesting that N mineralization and reduced N losses from the soil under CA contributed to this favorable nutritional condition, thus minimizing the importance of N management practices under stable, mature CA systems. |
format |
Article |
topic_facet |
AGRICULTURAL SCIENCES AND BIOTECHNOLOGY NUE Nitrogen Recovery Efficiency Nitrogen Physiological Recovery Wheat Yields Agrotain® Urea CONSERVATION AGRICULTURE NITROGEN FERTILIZERS WHEAT CROP YIELD |
author |
Santillano-Cazares, J. Nuñez-Ramirez, F. Ruiz-Alvarado, C. Cardenas, M.A. Ortiz-Monasterio, I. |
author_facet |
Santillano-Cazares, J. Nuñez-Ramirez, F. Ruiz-Alvarado, C. Cardenas, M.A. Ortiz-Monasterio, I. |
author_sort |
Santillano-Cazares, J. |
title |
Assessment of fertilizer management strategies aiming to increase nitrogen use efficiency of wheat grown under conservation agriculture |
title_short |
Assessment of fertilizer management strategies aiming to increase nitrogen use efficiency of wheat grown under conservation agriculture |
title_full |
Assessment of fertilizer management strategies aiming to increase nitrogen use efficiency of wheat grown under conservation agriculture |
title_fullStr |
Assessment of fertilizer management strategies aiming to increase nitrogen use efficiency of wheat grown under conservation agriculture |
title_full_unstemmed |
Assessment of fertilizer management strategies aiming to increase nitrogen use efficiency of wheat grown under conservation agriculture |
title_sort |
assessment of fertilizer management strategies aiming to increase nitrogen use efficiency of wheat grown under conservation agriculture |
publisher |
MDPI |
publishDate |
2018 |
url |
https://hdl.handle.net/10883/20100 |
work_keys_str_mv |
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