Rice and Water

Bouman, B.A.M.; Humphreys, E.; Tuong, To Phuc; Barker, Randolph

doi:10.1016/s0065-2113(04)92004-4

Cited by 520 publications

(320 citation statements)

References 83 publications

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“…In this circumstance, the highest WUE was registered under D 4 treatment. Thus, several water-saving methods have been developed (Belder et al, 2004;Bouman et al, 2006), surrounded by deficit irrigation and may possibly to improve agricultural water use. Our results are in agreement withthose of Rao and Bhardwaj (1981);Zhang et al (2001); Nasseri and fallahi, (2007) and Qiu et al, (2008).…”

Section: Discussionmentioning

confidence: 99%

Does Deficit Irrigation Affect the Relation between Radiation Interception and Water Consumption for Durum Wheat (Triticum durum Desf)?

Rezig

M’hamed

Naceur

2015

EER

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Total Dray Matter (TDM), Photosynthetically Active Radiation Intercepted (PARabs), Water Consumption (WC), Water use-(WUE), Radiation use efficiency (RUE) and the relationship between Radiation Interception and Water Consumption for Durum Wheat were investigate under different irrigation amount (D 1 = 100 % ETc; D 2 = 70 % ETc; D 3 = 40 % ETc and D 4 = pluvial) and during three growing seasons (2005-2006, 2006-2007 and 2007-2008). Results showed that, the cumulative PAR abs decreased with deficit irrigation. In fact, D 1 treatment recorded the highest cumulative PAR abs and the lowest marked underD 4 treatment. Similarly, TDM and RUE were decreased with deficit irrigation. The highest RUE observed under the D 1 (from 1.32 to 1.43 g MJ -1 ) and the lowest under D 4 (from 1.17 to 1.29 g MJ -1 ). However WUE increased with deficit irrigation. The highest WUE were obtained under the D 4 (from 3 to 4 kg m -3 ) and the lowest were observed under D 1 (from 2.8 to 3.1 kg m -3 ). Significant linear relationship was found between cumulative PAR abs and cumulative water consumption with a high correlation coefficient (R 2 ) only under the two treatments D 1 and D 2 .

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Section: Discussionmentioning

confidence: 99%

Does Deficit Irrigation Affect the Relation between Radiation Interception and Water Consumption for Durum Wheat (Triticum durum Desf)?

Rezig

M’hamed

Naceur

2015

EER

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“…However, several studies have emphasized the differential effects of minimum and maximum temperature (Yin et al 1996;Peng et al 2004;Welch et al 2010), the importance of including radiation (Sheehy et al 2006;Welch et al 2010), and the differential effects across phases of the growing season (Welch et al 2010). In addition, there has been extensive research on water requirements for rice production in irrigated (Bouman et al 2005(Bouman et al , 2007 or rain-fed settings (Xu and Mackill 1996;Sharma et al 1994;Wade et al 1999).…”

Section: Methodsmentioning

confidence: 99%

Early Warning Techniques for Local Climate Resilience: Smallholder Rice in Lao PDR

Behnke

Heft-Neal

Roland‐Holst

2017

Climate Smart Agriculture

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As part of the Regional Rice Initiative Pilot Project, UNFAO has committed resources to support policy dialog and decision capacity related to climate change adaptation and mitigation in agriculture, with particular attention to food security and the rice sector in Asia and the Pacific. This initiative includes sponsorship of research to deliver information and knowledge products for policy makers to better manage climate risks to the rice sector and identify adaptation needs for the rice sector in Lao PDR. In the following pages, we report on progress of one component of this activity, econometric estimation of long term impacts that climate change can be expected to have on rice yields. The work reported here is preliminary and should not in its current form be used as a basis for policy.

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“…Rice production under flooded conditions is highly sustainable. However, rice production needs to increase in coming decades to meet the food demand on growing populations to meet dual challenges of producing enough food and alleviating poverty (Bouman et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Drip Irrigation to Enhance Water Productivity of Rice under Climate Change

Dias¹,

Schütze²,

Lennartz³

2017

International Conference on Climate Change

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Abstract:Despite the high-water requirement of rice plant, paddy farmers grow rice mainly under flood irrigation. Irrigation in rice plays a major role in improving water productivity. Water productivity is the amount of yield produced per unit amount of water used by crop. Nevertheless, it depends on soil, climate, agronomic practices and method of irrigation. This study evaluates the water productivity of rice grown under the drip irrigation in comparison to flood irrigation. A container experiment was carried out in summer 2015, inside a constructed climate chamber at Dresden University of Technology, Germany. Three large PVC containers were used and in each 18 rice plants were grown (variety Bg300). Three soil matric potential based irrigation treatments were imposed from 14 days after seed establishment until 14 days before physiological maturity. Treatment T1 was maintained with a ponded depth of 3cm water. Treatments T2 and T3 were drip irrigated maintaining soil matric potentials at -150 mbar and -300mbar respectively. ) water productivities. In conclusion, water productivity of rice variety Bg300 shows very good results under drip irrigation in comparison to flood irrigation. Drip irrigation is the most efficient method of water application to crops including rice. However, its acceptance and implementation is relatively low among farmers due to technology involved in design, operation and maintenance. Still, it is a promising technology in rice cultivation in water scarce conditions under climate change.

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Rice and Water

Cited by 520 publications

References 83 publications

Does Deficit Irrigation Affect the Relation between Radiation Interception and Water Consumption for Durum Wheat (Triticum durum Desf)?

Does Deficit Irrigation Affect the Relation between Radiation Interception and Water Consumption for Durum Wheat (Triticum durum Desf)?

Early Warning Techniques for Local Climate Resilience: Smallholder Rice in Lao PDR

Drip Irrigation to Enhance Water Productivity of Rice under Climate Change

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