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Effects of Alternate Wetting and Drying Irrigation Regime and Nitrogen Fertilizer on Yield and Nitrogen Use Efficiency of Irrigated Rice in the Sahel

The objectives of this study were to investigate water saving strategies in the paddy field and to evaluate the performance of some of the newly released rice varieties. Field experiments were conducted at Fanaye in the Senegal River Valley during two rice growing seasons in 2015. Three irrigation r...

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Main Authors: Djaman, K., Mel, V.C., Diop, L., Sow, A., El-Namaky, R., Manneh, B., Saito, Kazuki, Futakuchi, K., Irmak, S.
Format: Journal Article
Language:Inglés
Published: MDPI 2018
Subjects:
nitrogen fertilizers
yields
rice
biochemistry
Online Access:https://hdl.handle.net/10568/101384
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author Djaman, K.
Mel, V.C.
Diop, L.
Sow, A.
El-Namaky, R.
Manneh, B.
Saito, Kazuki
Futakuchi, K.
Irmak, S.
author_browse Diop, L.
Djaman, K.
El-Namaky, R.
Futakuchi, K.
Irmak, S.
Manneh, B.
Mel, V.C.
Saito, Kazuki
Sow, A.
author_facet Djaman, K.
Mel, V.C.
Diop, L.
Sow, A.
El-Namaky, R.
Manneh, B.
Saito, Kazuki
Futakuchi, K.
Irmak, S.
author_sort Djaman, K.
collection Repository of Agricultural Research Outputs (CGSpace)
description The objectives of this study were to investigate water saving strategies in the paddy field and to evaluate the performance of some of the newly released rice varieties. Field experiments were conducted at Fanaye in the Senegal River Valley during two rice growing seasons in 2015. Three irrigation regimes ((i) continuous flooding, (ii) trigging irrigation at soil matric potential (SMP) of 30 kPa, (iii) trigging irrigation at SMP of 60 kPa) were tested in an irrigated lowland rice field. Irrigation regimes (ii) and (iii) are alternate wetting and drying (AWD) cycles. Four inbred rice varieties (NERICA S-21, NERICA S-44, Sahel 210 and Sahel 222) and one hybrid rice (Hybrid AR032H) were evaluated under five nitrogen fertilizer rates (0, 50, 100, 150 and 200 kg N ha−1). The results showed that rice yield varied from 0.9 to 12 t ha−1. The maximum yield of 12 t ha−1 was achieved by NERICA S-21 under AWD 30 kPa at 150 kg N ha−1. The AWD irrigation management at 30 kPa resulted in increasing rice yield, rice water use and nitrogen use efficiency and reducing the irrigation applications by 27.3% in comparison with continuous flooding. AWD30 kPa could be adopted as a water saving technology for water productivity under paddy production in the Senegal River Middle Valley. Additional research should be conducted in the upper Valley, where soils are sandier and water is less available, for the sustainability and the adoption of the irrigation water saving practices across the entire Senegal River Valley.
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language Inglés
publishDate 2018
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spelling CGSpace1013842025-11-05T06:49:49Z Effects of Alternate Wetting and Drying Irrigation Regime and Nitrogen Fertilizer on Yield and Nitrogen Use Efficiency of Irrigated Rice in the Sahel Djaman, K. Mel, V.C. Diop, L. Sow, A. El-Namaky, R. Manneh, B. Saito, Kazuki Futakuchi, K. Irmak, S. nitrogen fertilizers yields rice biochemistry The objectives of this study were to investigate water saving strategies in the paddy field and to evaluate the performance of some of the newly released rice varieties. Field experiments were conducted at Fanaye in the Senegal River Valley during two rice growing seasons in 2015. Three irrigation regimes ((i) continuous flooding, (ii) trigging irrigation at soil matric potential (SMP) of 30 kPa, (iii) trigging irrigation at SMP of 60 kPa) were tested in an irrigated lowland rice field. Irrigation regimes (ii) and (iii) are alternate wetting and drying (AWD) cycles. Four inbred rice varieties (NERICA S-21, NERICA S-44, Sahel 210 and Sahel 222) and one hybrid rice (Hybrid AR032H) were evaluated under five nitrogen fertilizer rates (0, 50, 100, 150 and 200 kg N ha−1). The results showed that rice yield varied from 0.9 to 12 t ha−1. The maximum yield of 12 t ha−1 was achieved by NERICA S-21 under AWD 30 kPa at 150 kg N ha−1. The AWD irrigation management at 30 kPa resulted in increasing rice yield, rice water use and nitrogen use efficiency and reducing the irrigation applications by 27.3% in comparison with continuous flooding. AWD30 kPa could be adopted as a water saving technology for water productivity under paddy production in the Senegal River Middle Valley. Additional research should be conducted in the upper Valley, where soils are sandier and water is less available, for the sustainability and the adoption of the irrigation water saving practices across the entire Senegal River Valley. 2018-05-31 2019-05-25T11:07:43Z 2019-05-25T11:07:43Z Journal Article https://hdl.handle.net/10568/101384 en Open Access application/pdf MDPI Djaman, K., Mel, V.C., Diop, L., Sow, A., El-Namaky, R., Manneh, B., Saito, K., Futakuchi, K., and Irmak, S. 2018. Effects of Alternate Wetting and Drying Irrigation Regime and Nitrogen Fertilizer on Yield and Nitrogen Use Efficiency of Irrigated Rice in the Sahel. Water 10:711.
spellingShingle nitrogen fertilizers
yields
rice
biochemistry
Djaman, K.
Mel, V.C.
Diop, L.
Sow, A.
El-Namaky, R.
Manneh, B.
Saito, Kazuki
Futakuchi, K.
Irmak, S.
Effects of Alternate Wetting and Drying Irrigation Regime and Nitrogen Fertilizer on Yield and Nitrogen Use Efficiency of Irrigated Rice in the Sahel
title Effects of Alternate Wetting and Drying Irrigation Regime and Nitrogen Fertilizer on Yield and Nitrogen Use Efficiency of Irrigated Rice in the Sahel
title_full Effects of Alternate Wetting and Drying Irrigation Regime and Nitrogen Fertilizer on Yield and Nitrogen Use Efficiency of Irrigated Rice in the Sahel
title_fullStr Effects of Alternate Wetting and Drying Irrigation Regime and Nitrogen Fertilizer on Yield and Nitrogen Use Efficiency of Irrigated Rice in the Sahel
title_full_unstemmed Effects of Alternate Wetting and Drying Irrigation Regime and Nitrogen Fertilizer on Yield and Nitrogen Use Efficiency of Irrigated Rice in the Sahel
title_short Effects of Alternate Wetting and Drying Irrigation Regime and Nitrogen Fertilizer on Yield and Nitrogen Use Efficiency of Irrigated Rice in the Sahel
title_sort effects of alternate wetting and drying irrigation regime and nitrogen fertilizer on yield and nitrogen use efficiency of irrigated rice in the sahel
topic nitrogen fertilizers
yields
rice
biochemistry
url https://hdl.handle.net/10568/101384
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