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You searched for: Journal Agricultural water management Remove constraint Journal: Agricultural water management Publication Year 2009 Remove constraint Publication Year: 2009 Source 2009 v.96 no.11 Remove constraint Source: 2009 v.96 no.11
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1. Characterisation of evaporation and drift losses with centre pivots

Author:
Ortíz, J.N.; Tarjuelo, J.M.; de Juan, J.A.
Source:
Agricultural water management 2009 v.96 no.11 pp. 1541-1546
ISSN:
0378-3774
Subject:
spray drift; sprinklers; water use efficiency; height; equipment design; evaporation; center pivot irrigation; diurnal variation; wind speed; field experimentation; Spain
Abstract:
... The objective of this paper is to study evaporation and drift losses (EDLs) with two types of sprinklers: rotating spray plate sprinklers (RSPS) and fixed spray plate sprinklers (FSPS), both installed at two different heights (1 and 2.5m above the ground). A field test was carried out during three seasons at an irrigated plot with a centre pivot, in Albacete (Spain). The results show that EDLs wer ...
DOI:
10.1016/j.agwat.2009.06.015

2. Comparing rice production systems: A challenge for agronomic research and for the dissemination of knowledge-intensive farming practices

Author:
Stoop, Willem A.; Adam, Abdoulaye; Kassam, Amir
Source:
Agricultural water management 2009 v.96 no.11 pp. 1491-1501
ISSN:
0378-3774
Subject:
cultivars; rice; irrigation water; soil water content; Oryza sativa; innovation adoption; water use efficiency; extension education; cropping systems; flood irrigation; technology transfer
Abstract:
... This article is a commentary on several research studies conducted on the prospects for aerobic rice production systems that aim at reducing the demand for irrigation water which in certain major rice producing areas of the world is becoming increasingly scarce. The research studies considered, as reported in published articles mainly under the aegis of the International Rice Research Institute (I ...
DOI:
10.1016/j.agwat.2009.06.022

3. Effect of temporal variability in soil hydraulic properties on simulated water transfer under high-frequency drip irrigation

Author:
Mubarak, Ibrahim; Mailhol, Jean Claude; Angulo-Jaramillo, Rafael; Bouarfa, Sami; Ruelle, Pierre
Source:
Agricultural water management 2009 v.96 no.11 pp. 1547-1559
ISSN:
0378-3774
Subject:
temporal variation; soil water storage; evapotranspiration; root systems; soil water content; plant available water; microirrigation; crops; loam soils; irrigation scheduling; water uptake; accuracy; hydrologic models; prediction
Abstract:
... The effect of changes in the hydraulic properties of a loamy topsoil on water transfer under daily drip irrigation was studied over a cropping cycle. Soil water contents were measured continuously with neutron probes and capacitance sensors placed in access tubes (EnviroSMART) and were compared to predications made by the Hydrus-2D model. Three different sets of hydraulic parameters measured befor ...
DOI:
10.1016/j.agwat.2009.06.011

4. Effects of drip irrigation levels and planting methods on yield and yield components of green pepper (Capsicum annuum, L.) in Bako, Ethiopia

Author:
Gadissa, Takele; Chemeda, Desalegn
Source:
Agricultural water management 2009 v.96 no.11 pp. 1673-1678
ISSN:
0378-3774
Subject:
sweet peppers; evapotranspiration; Capsicum annuum; microirrigation; fruit set; height; irrigation rates; planting; yield components; field experimentation; branches; Ethiopia
Abstract:
... A field experiment was conducted to investigate the effects of different levels of drip irrigation and planting methods on yield and yield components (number of fruits per plant, number of primary and secondary branches per plant, and plant height) of green pepper (Capsicum annuum, L.) in Bako, Ethiopia. Three irrigation levels (50, 75 and 100% of ETc) and two planting methods (normal and paired-r ...
DOI:
10.1016/j.agwat.2009.07.004

5. Estimating the impacts of water pricing on smallholder irrigators in North West Province, South Africa

Author:
Stijn, Speelman; Jeroen, Buysse; Stefano, Farolfi; Aymen, Frija; Marijke, D'Haese; Luc, D'Haese
Source:
Agricultural water management 2009 v.96 no.11 pp. 1560-1566
ISSN:
0378-3774
Subject:
estimation; irrigation water; profitability; small-scale farming; water use efficiency; cropping systems; irrigated farming; irrigation rates; water policy; input costs; economic impact; South Africa
Abstract:
... Worldwide growing water scarcity has increased the call for economic instruments to stimulate rational water use in agriculture. Furthermore, cost-recovery is now widely accepted as a cornerstone of sustainable water management. In many developing countries, where agricultural water use is often still subsidised, water pricing policies are developed for allocating water efficiently and achieving s ...
DOI:
10.1016/j.agwat.2009.06.014

6. Evaluation of surface water drainage systems for cropping in the Central Highlands of Ethiopia

Author:
Welderufael, W.A.; Woyessa, Y.E.
Source:
Agricultural water management 2009 v.96 no.11 pp. 1667-1672
ISSN:
0378-3774
Subject:
Vertisols; altitude; soil chemical properties; rhizosphere; nutrient uptake; dry matter accumulation; soil air; grain yield; furrows; surface water; plant growth; soil water content; agricultural land; drainage channels; arable soils; flooded conditions; saturated conditions; growing season; rain; raised beds; Ethiopia
Abstract:
... In Ethiopia vertisols cover about 10% of the total land area and is the fourth most important soil used for crop production, accounting for nearly 23% of the total arable land used for crop production. More than half of the vertisols are found in the Central Highlands of Ethiopia, with an altitude of more than 1500m above mean sea level. The unique physical and chemical properties of these soils a ...
DOI:
10.1016/j.agwat.2009.07.001

7. Implications of precipitation patterns and antecedent soil water content for leaching of pesticides from arable land

Author:
Lewan, Elisabet; Kreuger, Jenny; Jarvis, Nicholas
Source:
Agricultural water management 2009 v.96 no.11 pp. 1633-1640
ISSN:
0378-3774
Subject:
macropores; simulation models; soil water content; drainage systems; sorption; macropore flow; ecotoxicology; leaching; soil pore water; losses from soil; seasonal variation; drainage water; loam soils; groundwater; pesticides; moraine soils; Sweden
Abstract:
... An improved understanding of how precipitation patterns control pesticide leaching from structured soils prone to macropore flow could lead to practical mitigation strategies that would help farmers minimize losses by optimizing application timings. A sensitivity analysis of the macropore flow model MACRO was therefore carried out to examine the influence of antecedent soil water content and preci ...
DOI:
10.1016/j.agwat.2009.06.006

8. Increasing productivity in irrigated agriculture: Agronomic constraints and hydrological realities

Author:
Perry, Chris; Steduto, Pasquale; Allen, Richard. G.; Burt, Charles M.
Source:
Agricultural water management 2009 v.96 no.11 pp. 1517-1524
ISSN:
0378-3774
Subject:
crop management; irrigated farming; water use efficiency; irrigation water; evaporation; transpiration; drainage water; water reuse; irrigation systems; crop yield
Abstract:
... Irrigation is widely criticised as a profligate and wasteful user of water, especially in watershort areas. Improvements to irrigation management are proposed as a way of increasing agricultural production and reducing the demand for water. The terminology for this debate is often flawed, failing to clarify the actual disposition of water used in irrigation into evaporation, transpiration, and ret ...
DOI:
10.1016/j.agwat.2009.05.005

9. In situ use of groundwater by alfalfa

Author:
Ayars, James E.; Shouse, Peter; Lesch, Scott M.
Source:
Agricultural water management 2009 v.96 no.11 pp. 1579
ISSN:
0378-3774
Subject:
Medicago sativa; alfalfa; drainage water; saline water; irrigated farming; water reuse; salt tolerance; evaporation; groundwater; water uptake; water quality; water table; electrical conductivity; soil salinity; leaching; crop yield; sustainable agriculture
Abstract:
... Disposal of saline drainage water is a significant problem for irrigated agriculture. One proposal is to recycle drainage water to irrigate salt tolerant crops until the volume has been reduced sufficiently to enable final disposal by evaporation. Part of this concept requires in situ crop water reuse from shallow groundwater; and data is needed to quantify the potential use of groundwater by alte ...
Handle:
10113/34755
DOI:
10.1016/j.agwat.2009.06.012

10. Integrated management of irrigation water and fertilizers for wheat crop using field experiments and simulation modeling

Author:
Behera, S.K.; Panda, R.K.
Source:
Agricultural water management 2009 v.96 no.11 pp. 1532-1540
ISSN:
0378-3774
Subject:
Triticum aestivum; wheat; crop management; irrigated farming; NPK fertilizers; nutrient management; integrated agricultural systems; field experimentation; soil water content; plant available water; crop models; simulation models; grain yield; meteorological data; decision making; water use efficiency; wheat straw; leaf area index; frequency; calibration; India
Abstract:
... The reported study aimed at developing an integrated management strategy for irrigation water and fertilizers in case of wheat crop in a sub-tropical sub-humid region. Field experiments were conducted on wheat crop (cultivar Sonalika) during the years 2002-2003, 2003-2004 and 2004-2005. Each experiment included four fertilizer treatments and three irrigation treatments during the wheat growth peri ...
DOI:
10.1016/j.agwat.2009.06.016

11. Modeling the potential for closing quinoa yield gaps under varying water availability in the Bolivian Altiplano

Author:
Geerts, S.; Raes, D.; Garcia, M.; Taboada, C.; Miranda, R.; Cusicanqui, J.; Mhizha, T.; Vacher, J.
Source:
Agricultural water management 2009 v.96 no.11 pp. 1652-1658
ISSN:
0378-3774
Subject:
irrigation water; plant available water; stomatal conductance; evapotranspiration; simulation models; economic analysis; water use efficiency; developmental stages; water management; irrigated farming; drought; deficit irrigation; dryland farming; water stress; grain yield; seasonal variation; Chenopodium quinoa; small cereal grains; Bolivia
Abstract:
... In the Bolivian Altiplano, the yields of rainfed quinoa are relatively low and highly unstable. We use a validated crop water productivity model to examine the potential of closing quinoa yield gaps in this region. We simulate the expectable yields under rainfed cultivation and under different deficit irrigation (DI) strategies using the AquaCrop model for the Northern, Central and Southern Bolivi ...
DOI:
10.1016/j.agwat.2009.06.020

12. Pathways to breaking the poverty trap in Ethiopia: Investments in agricultural water, education, and markets

Author:
Hanjra, Munir A.; Ferede, Tadele; Gutta, Debel Gemechu
Source:
Agricultural water management 2009 v.96 no.11 pp. 1596-1604
ISSN:
0378-3774
Subject:
development policy; household income; water conservation; irrigation systems; small-scale farming; rural population; investment planning; literacy; rural poverty; social welfare; villages; market access; socioeconomic status; agriculture; farm size; Ethiopia
Abstract:
... Investments in agricultural water management should complement or strengthen the livelihood and coping systems of the rural poor, and should thus be instrumental for breaking the poverty trap in Ethiopia. Underdeveloped water resources constrain progress towards poverty reduction. We examine linkages and complementarities between agricultural water, education, markets and rural poverty through an ...
DOI:
10.1016/j.agwat.2009.06.008

13. Reductions in water use following rehabilitation of a flood-irrigated area on the Murray River in South Australia

Author:
Mosley, L.M.; Fleming, N.
Source:
Agricultural water management 2009 v.96 no.11 pp. 1679-1682
ISSN:
0378-3774
Subject:
water reuse; microrelief; pastures; water use efficiency; agricultural runoff; flood irrigation; water flow; surface water; environmental monitoring; South Australia
Abstract:
... Water use was monitored during rehabilitation of flood-irrigated farms in the lower Murray River of South Australia. Ten irrigation offtakes at six farms were monitored over a period of two years during the rehabilitation process. Full rehabilitation consisted of improved inlet structures, flow metering, elimination of water leaks, laser levelling of paddocks, and construction of re-use systems to ...
DOI:
10.1016/j.agwat.2009.06.001

14. Relationship between stable carbon isotope discrimination and water use efficiency under regulated deficit irrigation of pear-jujube tree

Author:
Cui, Ningbo; Du, Taisheng; Kang, Shaozhong; Li, Fusheng; Hu, Xiaotao; Wang, Mixia; Li, Zhijun
Source:
Agricultural water management 2009 v.96 no.11 pp. 1615-1622
ISSN:
0378-3774
Subject:
water uptake; harvest date; flowering; stomatal conductance; small fruits; water use efficiency; drought; water stress; deficit irrigation; carbon; fruit set; crop yield; photosynthesis; Ziziphus jujuba; stable isotopes; leaves
Abstract:
... To investigate the relationship between stable carbon isotope discrimination (Δ) of different organs and water use efficiency (WUE) under different water deficit levels, severe, moderate and low water deficit levels were treated at bud burst to leafing, flowering to fruit set, fruit growth and fruit maturation stages of field grown pear-jujube tree, and leaf stable carbon isotope discrimination (Δ ...
DOI:
10.1016/j.agwat.2009.06.009

15. Removing barriers to facilitate efficient water markets in the Murray-Darling Basin of Australia

Author:
Qureshi, M. Ejaz; Shi, Tian; Qureshi, Sumaira E.; Proctor, Wendy
Source:
Agricultural water management 2009 v.96 no.11 pp. 1641-1651
ISSN:
0378-3774
Subject:
mathematical models; profitability; water rights; policy analysis; water allocation; econometric models; water policy; water resources; markets; agricultural policy; Australia
Abstract:
... We discuss the role and characteristics of water markets in Australia in facilitating efficient water allocation. Administrative, regulatory and/or political barriers to effective functioning of water markets are reviewed with a focus on the southern Murray-Darling Basin (MDB) region of Australia. A mathematical model is developed to estimate the costs of existing restrictions and the benefits fro ...
DOI:
10.1016/j.agwat.2009.06.019

16. Runoff water harvesting for dry spell mitigation for cowpea in the savannah belt of Nigeria

Author:
Adekalu, K.O.; Balogun, J.A.; Aluko, O.B.; Okunade, D.A.; Gowing, J.W.; Faborode, M.O.
Source:
Agricultural water management 2009 v.96 no.11 pp. 1502-1508
ISSN:
0378-3774
Subject:
Vigna unguiculata; soil conservation; cowpeas; no-tillage; small-scale farming; conventional tillage; reduced tillage; water harvesting; agricultural runoff; developmental stages; irrigation; drought; water stress; crop yield; dryland farming; savannas; bunds; Nigeria
Abstract:
... Cowpea yields obtained by smallholder farmers in the savannah belt of Nigeria are often less than the maximum obtainable yields because water deficit during critical growth stages is a common occurrence. Runoff harvesting to supplement direct rainfall may prove beneficial in improving current smallholder farming systems in this region. We study the effects of macro- and micro-catchments runoff har ...
DOI:
10.1016/j.agwat.2009.06.005

17. Simulation of soil water dynamics under subsurface drip irrigation from line sources

Author:
Elmaloglou, S.; Diamantopoulos, E.
Source:
Agricultural water management 2009 v.96 no.11 pp. 1587-1595
ISSN:
0378-3774
Subject:
temporal variation; water uptake; simulation models; soil water content; loamy sand soils; silty soils; subsurface irrigation; microirrigation; soil depth; infiltration (hydrology); evaporation; hysteresis; irrigation rates; spatial variation; hydrologic models; wetting front; subsurface flow
Abstract:
... A mathematical model which describes water flow under subsurface drip lines taking into account root water uptake, evaporation of soil water from the soil surface and hysteresis in the soil water characteristic curve θ(H) is presented. The model performance in simulating soil water dynamics was evaluated by comparing the predicted soil water content values with both those of Hydrus 2D model and th ...
DOI:
10.1016/j.agwat.2009.06.010

18. Spatial and temporal trends of water productivity in the lower Mekong River Basin

Author:
Mainuddin, Mohammed; Kirby, Mac
Source:
Agricultural water management 2009 v.96 no.11 pp. 1567-1578
ISSN:
0378-3774
Subject:
rice; profitability; poverty; Oryza sativa; food security; sugarcane; population growth; farm income; international trade; grain yield; temporal variation; Zea mays; corn; spatial variation; water use efficiency; Saccharum; Mekong River; Thailand; Vietnam; Cambodia; Laos
Abstract:
... We estimate the physical and economic water productivities of rice and upland crops grown in the Lower Mekong River Basin and we examine their spatial and temporal trends. We discuss the constraints to low productivity, suggest measures for improvement and show the future productivity requirements for food security for increased population. Both the physical and economic water productivities of ri ...
DOI:
10.1016/j.agwat.2009.06.013

19. Subsurface drip irrigation and reclaimed water quality effects on phosphorus and salinity distribution and forage production

Author:
Palacios-Díaz, M.P.; Mendoza-Grimón, V.; Fernández-Vera, J.R.; Rodríguez-Rodríguez, F.; Tejedor-Junco, M.T.; Hernández-Moreno, J.M.
Source:
Agricultural water management 2009 v.96 no.11 pp. 1659-1666
ISSN:
0378-3774
Subject:
Medicago sativa; alfalfa; microirrigation; subsurface irrigation; irrigation water; water reuse; water quality; soil salinity; spatial distribution; crop yield; phosphorus; nutrient availability; wastewater irrigation; field experimentation; chemical speciation; electrical conductivity; nutrient content; mortality; spatial variation; salt stress; soil microorganisms; biogeochemical cycles; Canary Islands
Abstract:
... In the Canary Islands, water scarcity is one of the constraints for agricultural activity. Non-conventional water resources generally represent more water volume than conventional ones. The distribution of these resources frequently permits the possibility of a conjunctive use of desalinated (DW) water and reclaimed municipal wastewater (RW). Field testing with both water qualities and different i ...
DOI:
10.1016/j.agwat.2009.06.021

20. The effects of contrasted deficit irrigation strategies on the fruit growth and kernel quality of mature almond trees

Author:
Egea, Gregorio; González-Real, María M.; Baille, Alain; Nortes, Pedro A.; Sánchez-Bel, Paloma; Domingo, Rafael
Source:
Agricultural water management 2009 v.96 no.11 pp. 1605-1614
ISSN:
0378-3774
Subject:
lipid content; filling period; crop quality; evapotranspiration; irrigation water; seeds; soil water content; organic acids and salts; fruiting; deficit irrigation; crop yield; irrigation rates; food composition; almonds; protein content; dry matter partitioning; Prunus dulcis; sugar content
Abstract:
... The aim of this study was to quantify and compare the effects of two different deficit irrigation (DI) strategies (regulated deficit irrigation, or RDI, and partial rootzone drying, PRD) on almond (Prunus dulcis (Mill.) D.A. Webb) fruit growth and quality. Five irrigation treatments, ranging from moderate to severe water restriction, were applied: (i) full irrigation (FI), irrigated to satisfy the ...
DOI:
10.1016/j.agwat.2009.06.017

21. The effects of drought on the water use, fruit development and oil yield from young olive trees

Author:
Greven, Marc; Neal, Sue; Green, Steve; Dichio, Bartolomeo; Clothier, Brent
Source:
Agricultural water management 2009 v.96 no.11 pp. 1525-1531
ISSN:
0378-3774
Subject:
drought tolerance; drought; sap flow; crop yield; crop acreage; transpiration; water stress; weight; plant growth; soil water content; olive oil; leaf water potential; Olea europaea; lipid content; irrigation water; water use efficiency; olives; fruiting; phenolic compounds; New Zealand
Abstract:
... In Marlborough, New Zealand, olives are becoming an important crop alongside grapes. However, despite olives being drought resistant, they are generally planted on the poorer free-draining soils. Also, with the strong increase in cropping area, the demand for irrigation water has increased dramatically. In this research, we investigate the impact of short-term water stress on plant physiological p ...
DOI:
10.1016/j.agwat.2009.06.002

22. Water conservation potential of smart irrigation controllers on St. Augustinegrass

Author:
McCready, M.S.; Dukes, M.D.; Miller, G.L.
Source:
Agricultural water management 2009 v.96 no.11 pp. 1623-1632
ISSN:
0378-3774
Subject:
irrigation water; water conservation; evapotranspiration; irrigation systems; soil water content; water use efficiency; lawns and turf; appearance (quality); rain; irrigation rates; Stenotaphrum secundatum; turf grasses; controllers; Florida
Abstract:
... A variety of technologies for reducing residential irrigation water use are available to homeowners. These “Smart Irrigation” technologies include evapotranspiration (ET)-based controllers and soil moisture sensor (SMS) controllers. The purpose of this research was to evaluate the effectiveness of these technologies, along with rain sensors, based on irrigation applied and turfgrass quality measur ...
DOI:
10.1016/j.agwat.2009.06.007

23. Water use and technical efficiencies in horticultural greenhouses in Tunisia

Author:
Frija, Aymen; Chebil, Ali; Speelman, Stijn; Buysse, Jeroen; Van Huylenbroeck, Guido
Source:
Agricultural water management 2009 v.96 no.11 pp. 1509-1516
ISSN:
0378-3774
Subject:
greenhouse production; horticultural crops; water use efficiency; crop management; irrigation water; farm inputs; nutrient use efficiency; input output analysis; profitability; farm management; fertigation; Tunisia
Abstract:
... We measure the technical efficiency of unheated greenhouse farms in Tunisia, and propose a measure for irrigation water use efficiency (IWUE) using an alternative form of the data envelopment analysis (DEA) model. Technical efficiency measures the degree to which (all) farm inputs are used efficiently. IWUE is a measure of the efficiency of irrigation water use when other inputs and output are kep ...
DOI:
10.1016/j.agwat.2009.05.006