Rice production with less irrigation water is possible in a Sahelian environment

Vries, Michiel E. de; Rodenburg, Jonne; Bado, Boubié Vincent; Sow, Abdoualye; Leffelaar, P.A.; Giller, Ken E.

doi:10.1016/j.fcr.2009.12.006

Cited by 111 publications

(55 citation statements)

References 40 publications

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“…Under the N-P-K fertilizer, Sahel 108 grain yield decreased about 0.4% while yield increase was 35, 29, 34 and 20% for Pusa Bamati, Sahel 328, Sahel 177 and Sahel 328, respectively. The results of this study are similar to the finding of de Vries et al (2010) whose data showed yield increase from HDS to WS from 24 to 230%, depending on treatments during experiments conducted at the same site. Traore et al (2010) reported that rice yield was affected by the growing season with the highest yield occurring in the dry season.…”

Section: Effect Of Growing Season On the Grain Yieldsupporting

confidence: 81%

“…Agronomic nitrogen use efficiency (ANUE) (yield increase due to N fertilizer application) was reported to be less than 10 kg kg −1 N (Peng et al, 2010;Fan et al, 2012). Previous study in the Senegal River Valley showed that yield of rice variety Sahel 108 increased significantly with applied rates of N with lower internal N efficiency at Ndiaye than at Fanaye (de Vries et al, 2010). The same authors indicated that other factors than N might have constrained rice yields at Ndiaye.…”

Section: Introductionmentioning

confidence: 84%

“…At Fanaye, the existing fertilizer NPK recommendation should be used under all rice genotypes except for the Sahel 177 and Pusa Basmati however; K can be omitted with no change in N and P. The comparison of five rice genotypes under similar fertilizer rate indicated that the check variety Sahel 108, is a confirmed high yielding variety with a yield potential of 12 Mg/ha that is the most popular variety used by producers in the Senegal River valley Dingkuhn and Sow, 1997;de Vries et al, 2010). However, Sahel 177 was the competitive genotype against Sahel 108.…”

Section: Rice Response Functions To Fertilizer Combinationmentioning

confidence: 99%

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Yield and nitrogen use efficiency of aromatic rice varieties in response to nitrogen fertilizer

Djaman

Vincent²,

Valere³

2016

Emir. J. Food Agric

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Section: Effect Of Growing Season On the Grain Yieldsupporting

confidence: 81%

Section: Introductionmentioning

confidence: 84%

Section: Rice Response Functions To Fertilizer Combinationmentioning

confidence: 99%

See 1 more Smart Citation

Yield and nitrogen use efficiency of aromatic rice varieties in response to nitrogen fertilizer

Djaman

Vincent²,

Valere³

2016

Emir. J. Food Agric

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“…The adoption of such alternative irrigation options is likely coupled with reduced productive performances [28] and to additional labor costs [10,29], given the enhanced presence of weeds [30]. More research is needed; this can provide sets of data to be used for quantifying the economics of rice production, to finally quantify the trade-offs between economic and environmental concerns.…”

Section: Introductionmentioning

confidence: 99%

Water Management Options for Rice Cultivation in a Temperate Area: A Multi-Objective Model to Explore Economic and Water Saving Results

Monaco

Sali

Hassen

et al. 2016

Water

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Due to the changing climatic and environmental conditions, modifications in agricultural and water policies have been made, and irrigated agriculture has to face the challenge of making a rational and optimal use of the water resource effectively available. This urges rice farming, strongly and traditionally linked to water, to change the modalities for the use of the resource. If on one hand water saving techniques should be preferred, a different water management in paddy fields may lead to lower yields and higher production costs, with consequent repercussions on farm incomes. The paper recognizes the disagreement between environmental and economic concerns and aims at contributing to the discussion about how to reconcile them by adopting alternative irrigation strategies. From this perspective, a multi-objective linear optimization model is used to explore the trade-offs between conflicting objectives in a rice-growing area in Northern Italy. The model returns the optimal allocation of land subject to three different irrigation strategies, as those previously performed in experimental fields; in addition, a scenario analysis is run to simulate reduced resource availability. Results demonstrate the key role of prioritizing one objective over the other, while introducing cultivars more suitable for dry cultivation enables enlarging the frontier of optimal solutions.

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“…Numerous studies have been conducted to reduce S&P (Sharma et al, 1995;Borrell et al, 1997;Roel et al, 1999;Bouman and Tuong, 2001;Pirmoradian et al, 2004;Mahrup et al, 2005;Kato et al, 2009;de Vries et al, 2010), and these studies finally resulted in higher water use efficiency (WUE). Although S&P is a major component in water loss, we focused on the suppression of surface water evaporation to achieve a high WUE in this study because a large amount of water loss also occurs during the early growth period by surface water evaporation (Adachi et al, 1995;Cabangon et al, 2002).…”

mentioning

confidence: 99%

Role of Canopy Coverage in Water Use Efficiency of Lowland Rice in Early Growth Period in Semi-Arid Region

Suzuki

Ohta

Izumi

et al. 2013

Plant Production Science

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An appropriate combination of rice cultivar and cropping system that maximizes water use efficiency (WUE) may improve yield of rainfed lowland rice. In the paddy field, a large amount of water is consumed by evaporation during the early growth period, and it can be reduced by canopy coverage especially in semi-arid regions. Therefore, we evaluated the role of canopy coverage in WUE of rice in the early growth period in semi-arid region. A pot experiment was conducted in Namibia to investigate the genotypic and species difference in WUE, and another pot and a field experiment were conducted to investigate the effects of planting density on WUE. Although no significant difference was observed among species, the mean WUE was in the decreasing order of Oryza sativa, and Oryza glaberrima followed by the interspecific progenies including NERICA. In contrast, there was a significant difference in WUE at the genotypic level. Highly tillering genotypes such as WAB1159-2-12-11-5-1 and WITA 2 showed a high WUE. Furthermore, WUE was significantly correlated with the number of tillers (R 2 = 0.453), and higher planting density resulted in a higher WUE. In contrast, stomatal conductance had no significant correlation with WUE (R 2 = 0.081). Thus, the physical conditions affected by number of tillers and planting density had greater impacts on WUE than physiological characteristics such as stomatal conductance. The suppression of surface water evaporation by coverage was significant, probably contributing to WUE improvement. To increase WUE in semi-arid regions, we recommend the increase of canopy coverage and higher planting density.

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Rice production with less irrigation water is possible in a Sahelian environment

Cited by 111 publications

References 40 publications

Yield and nitrogen use efficiency of aromatic rice varieties in response to nitrogen fertilizer

Yield and nitrogen use efficiency of aromatic rice varieties in response to nitrogen fertilizer

Water Management Options for Rice Cultivation in a Temperate Area: A Multi-Objective Model to Explore Economic and Water Saving Results

Role of Canopy Coverage in Water Use Efficiency of Lowland Rice in Early Growth Period in Semi-Arid Region

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