Agronomic performance of high-yielding rice variety grown under alternate wetting and drying irrigation

Yao, Fengxian; Huang, Jikun; Cui, Kehui; Nie, Lei; Xiang, Jing; Liu, Xiaojin; Wu, Wei; Chen, Mingxia; Peng, Shaobing

doi:10.1016/j.fcr.2011.09.018

Cited by 242 publications

(186 citation statements)

References 18 publications

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“…Esses resultados estão próximos aos obtidos por MACHADO et al (2006) no uso de água, chegando a 24 e 38% nas safras de 2009 e 2010, respectivamente, comparado com a irrigação contínua (YAO et al, 2012), pois ele permite armazenar grande parte da água advinda das precipitações pluviais. Embora a época de semeadura não tenha infl uenciado no volume de água aplicado nas duas safras avaliadas, ela interferiu no rendimento de grãos da cultura (Tabela 1).…”

Section: Resultsunclassified

“…Estratégias visando à maior efi ciência de água em arroz estão sendo estudadas em diversas partes do mundo por diversos pesquisadores (TOESCHER et al, 1997;BOUMAN & TUONG, 2000;MACHADO et al, 2006;AHMAD et al, 2008;JALOTA et al, 2009;MAHAJAN et al, 2009;YAO et al, 2012). Entre as estratégias, está o uso de diferentes sistemas de irrigação (contínuo e intermitente), densidades de plantas, cultivares de diferentes ciclos (curto, médio e tardio), híbridas e convencionais, diferentes momentos de supressão da irrigação e épocas de semeadura do arroz.…”

Section: Introductionunclassified

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Rendimento de grãos e eficiência no uso de água de arroz irrigado em função da época de semeadura

et al. 2013

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Section: Resultsunclassified

Section: Introductionunclassified

Rendimento de grãos e eficiência no uso de água de arroz irrigado em função da época de semeadura

et al. 2013

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“…During the four growth stages of water control, NH 4 + -N, NO 3 --N, and TP concentrations under CID reached the peak in the fi rst day of fl ooding and then dropped to stable values as fl ooding times went on, except that NH 4 + -N concentration under CID-2 at the tillering stage obtained peak value in the third fl ooding day. NH 4 + -N, NO 3 --N, and TP concentrations of CID-1 treatment in the fi rst fl ooding day at four growth stages for CID-1 treatment were higher than of CID-2 treatment (34.0%, 24 --N, and TP on the fi fth day of fl ooding for CID-1 treatment were higher than for CID-2 treatment at each growth stage in two years. However, for NH 4 + -N and TP signifi cant differences (P<0.05) only existed at the tillering and jointing-booting stages, yet for NO 3 --N signifi cant differences were observed at the former three growth stages (Table 4).…”

Section: Nitrogen and Phosphorus Concentrations And Losses In Surfacementioning

confidence: 99%

“…Research on AWD confi rmed that high watersaving potential does exist [24][25]. However, rainwater harvesting, storage, and use for AWD were signifi cantly lower than CID due to the lower-fi eld water depth [26].…”

Section: Effect On Water Usementioning

confidence: 99%

Impact of Alternate Drought and Flooding Stress on Water Use, and Nitrogen and Phosphorus Losses in a Paddy Field

Mei¹,

Yu²,

Shao³

et al. 2018

Pol. J. Environ. Stud.

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Paddy is the most important grain crop in China. In addition, water is one of the most important components for sustainable paddy production, and the quantity of irrigation for paddy fi elds accounts for approximately 70% of its total agricultural water resource consumption [1]. However, water supply is limited because of serious regional and seasonal water shortages, and paddy production is impaired by increasing water shortage [2]. Meanwhile, China is the largest producer and consumer of synthetic fertilizers in the world. Fertilizer and pesticide overuse in order to achieve high paddy yields might result not only in poor grain yield but also low N use Pol. J. Environ. Stud. Vol. 27, No. 1 (2018), 345-355 AbstractAlternate drought and fl ooding stress has become more prevalent during paddy growth stages as a result of climate change, especially in southern China. This study aims to assess the effect of alternate drought and fl ooding stress on water use, and nitrogen (N) and phosphorus (P) losses in paddy fi elds. Two controlled irrigation and drainage (CID) managements (namely drought at the beginning of growth stages followed by fl ooding (CID-1), and fl ooding at the beginning of growth stages followed by drought (CID-2) and one alternated wetting and drying (AWD) management were designed in specially designed experimental tanks with three replications in 2015 and 2016. Results showed that CID increased effective irrigation quantities and rainwater storage ability with a signifi cant decrease in water use effi ciency compared with AWD. For surface water, CID-1 signifi cantly improved possible losses of nitrogen and phosphorus during the fertilizer application period over CID-2. For subsurface water, CID can signifi cantly reduce the leaching losses of nitrate N and P compared with AWD. Meanwhile, CID-1 signifi cantly inc reased the leaching losses of nitrate N at the former two growth stages compared to CID-2, yet no signifi cant difference was found for ammonia N and P. Therefore, the application of controlled irrigation and drainage -especially for CID-1 -was an effi cient method for obtaining high water quality and reducing eutrophication.

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“…Los estudios sugieren que el AWD reduce el número de horas de riego sin una reducción significativa del rendimiento, aunque se utilicen variedades de alto rendimiento desarrolladas para el sistema de riego continuo (36). Colombia busca mapear las áreas adecuadas para el uso del AWD y en complemento, el Programa de Adopción Masiva de tecnología de FEDEARROZ promueve el cultivo con suelos bajo saturación, ya que se alcanzan rendimientos similares al arroz bajo el SC, buscando regar más área con el agua disponible.…”

Section: Tecnologías Disponibles Para La Optimización Del Recurso Hídunclassified

Tecnologías para ahorrar agua en el cultivo de arroz

Alonso²

2016

nova

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El uso eficiente del agua determina el futuro del cultivo de arroz en Colombia frente a los tratados de libre comercio, ya que es un factor que condiciona el área sembrada, el rendimiento de la cosecha y los costos de producción, además de su sostenibilidad en el tiempo. Por lo tanto, se presenta una revisión de las tecnologías desarrolladas a nivel mundial enfocadas al ahorro del agua en el cultivo de arroz en condiciones aeróbicas y anaeróbicas. Se resaltan tecnologías alternativas que superan al sistema convencional en rendimiento y en la cantidad de arroz cosechado por metro cúbico de agua invertido. En la reflexión para Colombia, se destacan aspectos importantes para la construcción de la agenda de investigación y la apropiación social de las tecnologías alternativas con miras a la optimización del recurso hídrico en el cultivo de arroz; se recomienda priorizar el arroz aeróbico y la medición efectiva del consumo de agua, indispensable para controlar su uso, planear, dirigir y entender cómo estas tecnologías alternativas conducen a la recuperación de la inversión de los agricultores y a la rentabilidad del cultivo.Palabras clave: Arroz, tecnologías, uso eficiente del agua, aeróbico, campo inundado. AbstractWater use efficiency, given that it conditions the sown areas, yield and production costs, as well as its sustainability, determines the future of rice production in Colombia against the FDA. This paper presents a review of the globally developed technologies for water saving in rice production under aerobic and anaerobic conditions. The authors highlight alternative technologies that surpass the conventional system in terms of yield and harvest per cubic meter of water used. In the reflection for Colombia, the authors highlight important features for the research agenda and the social appropriation of alternative technologies with a view to optimizing water resources usage for rice production. Recommendations include the prioritizing of aerobic rice and the effective measurement of water consumption, which is indispensable for its use, and for planning, directing, and understanding how these alternative technologies can lead to the recovery of the investment made by agricultural workers and crop profitability.

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Agronomic performance of high-yielding rice variety grown under alternate wetting and drying irrigation

Cited by 242 publications

References 18 publications

Rendimento de grãos e eficiência no uso de água de arroz irrigado em função da época de semeadura

Rendimento de grãos e eficiência no uso de água de arroz irrigado em função da época de semeadura

Impact of Alternate Drought and Flooding Stress on Water Use, and Nitrogen and Phosphorus Losses in a Paddy Field

Tecnologías para ahorrar agua en el cultivo de arroz

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