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You searched for: Journal Agricultural water management Remove constraint Journal: Agricultural water management Publication Year 2017 Remove constraint Publication Year: 2017 Source 2017 v.191 Remove constraint Source: 2017 v.191
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1. Alfalfa forage production under solid-set sprinkler irrigation in a semiarid climate

Author:
Cavero, Jose; Faci, Jose M.; Medina, Eva T.; Martínez-Cob, Antonio
Source:
Agricultural water management 2017 v.191 pp. 184-192
ISSN:
0378-3774
Subject:
Medicago sativa; Mediterranean climate; alfalfa; climatic factors; evapotranspiration; forage; forage production; forage yield; irrigation rates; irrigation requirement; irrigation scheduling; irrigation water; nitrogen content; photosynthetically active radiation; plant growth; production functions; semiarid zones; sprinkler irrigation; water use efficiency
Abstract:
... Under sprinkler irrigation, local environmental conditions have an important influence on irrigation water losses, plant physiological changes and uniformity of irrigation, leading to different crop water production functions. We studied during three years the effect of irrigation depth on the plant growth, forage yield and N content, evapotranspiration and water use efficiency of an alfalfa (Medi ...
DOI:
10.1016/j.agwat.2017.06.018

2. An interval multistage classified model for regional inter- and intra-seasonal water management under uncertain and nonstationary condition

Author:
Chen, Shu; Shao, Dongguo; Tan, Xuezhi; Gu, Wenquan; Lei, Caixiu
Source:
Agricultural water management 2017 v.191 pp. 98-112
ISSN:
0378-3774
Subject:
autumn; industry; irrigation; managers; methodology; models; resource allocation; spring; summer; uncertainty; water allocation; water power; winter
Abstract:
... In regional water management, various uncertainties such as randomness, non-stationarities, dynamics and complexities, lead to difficulties for water managers. To deal with the above problems, a new methodology is proposed by introducing two methods nonstationary analysis, where the generalized additive model is selected to analyze and fit the distribution of water inflow; and model optimization, ...
DOI:
10.1016/j.agwat.2017.06.005

3. A novel tool to assess available hydrological information and the occurrence of sub-optimal water allocation decisions in large irrigation districts

Author:
Kaune, Alexander; Werner, Micha; Rodríguez, Erasmo; Karimi, Poolad; de Fraiture, Charlotte
Source:
Agricultural water management 2017 v.191 pp. 229-238
ISSN:
0378-3774
Subject:
crop yield; hydrology; irrigated farming; irrigation; planning; water allocation; water shortages; Australia; Colombia; Costa Rica
Abstract:
... Hydrological information on water availability and demand is vital for sound water allocation decisions in irrigation districts, particularly in times of water scarcity. However, water allocation decisions are often taken based on uncertain hydrological information, which may lead to sub-optimal decisions and agricultural production loss. This study aims to assess the availability of hydrological ...
DOI:
10.1016/j.agwat.2017.06.013

4. Are basin and reservoir tillage effective techniques to reduce runoff under sprinkler irrigation in Mediterranean conditions?

Author:
Silva, Luis L.
Source:
Agricultural water management 2017 v.191 pp. 50-56
ISSN:
0378-3774
Subject:
basins; center pivot irrigation; farmers; industry; irrigation management; minimum tillage; no-tillage; runoff; soil; soil erosion; surface water; Mediterranean region
Abstract:
... The increasing use of low pressure moving sprinklers irrigation systems, like center-pivot irrigation systems, has increased surface runoff problems. Runoff decreases the irrigation system application efficiency, increasing the operational costs. It can also be responsible for environmental problems, such as soil erosion and the contamination of surface waters. Basin tillage and reservoir tillage ...
DOI:
10.1016/j.agwat.2017.06.003

5. Assessing low-pressure solid-set sprinkler irrigation in maize

Author:
Robles, O.; Playán, E.; Cavero, J.; Zapata, N.
Source:
Agricultural water management 2017 v.191 pp. 37-49
ISSN:
0378-3774
Subject:
analysis of variance; canopy; corn; energy; evaporation; experimental design; grain yield; irrigation scheduling; monitoring; pressure treatment; soil water; sprinkler irrigation; sprinklers; viability; wind
Abstract:
... Water and energy are limited and expensive resources. Conserving water and energy is a requirement to ensure the viability of modern pressurized irrigation systems. The objective of this research was to analyze the possibilities of reducing the nozzle operating pressure of impact sprinklers from 300kPa (standard pressure) to 200kPa (low pressure) in solid-set irrigation systems without reducing th ...
DOI:
10.1016/j.agwat.2017.06.001

6. Combined deficit irrigation and soil fertility management on different soil textures to improve wheat yield in drought-prone Bangladesh

Author:
Mustafa, S.M.T.; Vanuytrecht, E.; Huysmans, M.
Source:
Agricultural water management 2017 v.191 pp. 124-137
ISSN:
0378-3774
Subject:
atmospheric precipitation; biomass production; deficit irrigation; drought; environmental factors; evaporative demand; fertilizers; flowering; grain yield; growing season; irrigation rates; irrigation scheduling; loam soils; models; sandy soils; seedlings; soil fertility; soil texture; stem elongation; water shortages; wheat; Bangladesh
Abstract:
... Proper utilization of water resources is very important in agro-based and drought-prone Bangladesh. Sustainable use of water resources in agriculture requires irrigation schedules based on local environmental conditions, soil type and water availability. In this study, the water productivity model AquaCrop was used to simulate different water and fertilizer management strategies in a drought prone ...
DOI:
10.1016/j.agwat.2017.06.011

7. Combining the ensemble mean and bias correction approaches to reduce the uncertainty in hillslope-scale soil moisture simulation

Author:
Liao, Kaihua; Lai, Xiaoming; Zhou, Zhiwen; Zhu, Qing
Source:
Agricultural water management 2017 v.191 pp. 29-36
ISSN:
0378-3774
Subject:
cumulative distribution; mathematical models; prediction; soil heterogeneity; soil hydraulic properties; soil water; uncertainty; water flow
Abstract:
... The ROSETTA model has routinely been applied to predict the soil hydraulic properties for simulating the water flow at the hillslope scale. However, the uncertainties in water flow simulations are substantial due to the soil heterogeneity and ROSETTA model structure. In order to reduce these uncertainties, this study used the HYDRUS-2D and ensemble mean to simulate soil moisture based on the outpu ...
DOI:
10.1016/j.agwat.2017.05.014

8. Copula-statistical precipitation forecasting model in Australia’s agro-ecological zones

Author:
Nguyen-Huy, Thong; Deo, Ravinesh C.; An-Vo, Duc-Anh; Mushtaq, Shahbaz; Khan, Shahjahan
Source:
Agricultural water management 2017 v.191 pp. 153-172
ISSN:
0378-3774
Subject:
El Nino; La Nina; agroecological zones; climatic factors; models; spring; water resources; wheat; Australia
Abstract:
... Vine copulas are employed to explore the influence of multi-synoptic-scale climate drivers – El Niño Southern Oscillation (ENSO) and Inter-decadal Pacific Oscillation (IPO) Tripole Index (TPI) – on spring precipitation forecasting at Agro-ecological Zones (AEZs) of the Australia’s wheat belt. To forecast spring precipitation, significant seasonal lagged correlation of ENSO and TPI with precipitati ...
DOI:
10.1016/j.agwat.2017.06.010

9. Design of concave and convex paired sloped drip laterals

Author:
Baiamonte, Giorgio
Source:
Agricultural water management 2017 v.191 pp. 173-183
ISSN:
0378-3774
Subject:
microirrigation; pipes; topography; water use efficiency
Abstract:
... Properly designed microirrigation plants allow water use efficiency to be optimized and quite high values of emission uniformity to be obtained in the field. Disposing paired laterals so that two distribution pipes extend in opposite directions from a common manifold contributes to provide more uniform pressure to all laterals in thesystem. Towards this end, an analytical procedure to optimize the ...
DOI:
10.1016/j.agwat.2017.06.015

10. Does water salinity affect pepper plant response to nitrogen fertigation?

Author:
Yasuor, Hagai; Tamir, Guy; Stein, Avraham; Cohen, Shabtai; Bar-Tal, Asher; Ben-Gal, Alon; Yermiyahu, Uri
Source:
Agricultural water management 2017 v.191 pp. 57-66
ISSN:
0378-3774
Subject:
fertigation; field experimentation; freshwater; greenhouse production; irrigation; nitrogen; nitrogen content; petioles; phytomass; plant response; sodium chloride; stems; sweet peppers; water salinity
Abstract:
... Recent increase in demand for agricultural products combined with scarcity of fresh water has motivated increased use of non-conventional water sources for irrigation. Application of water varying in quality dictates adjustment of nitrogen (N) management. The response of bell pepper to a range of different concentrations of N and salinity (NaCl) was evaluated in soilless and field experiments unde ...
DOI:
10.1016/j.agwat.2017.05.012

11. Dynamics of evapotranspiration partitioning for apple trees of different ages in a semiarid region of northwest China

Author:
Wang, Di; Wang, Li
Source:
Agricultural water management 2017 v.191 pp. 1-15
ISSN:
0378-3774
Subject:
Malus domestica; canopy; climatic factors; ecosystems; evaporation; evapotranspiration; semiarid zones; soil; transpiration; tree age; trees; vegetation; China
Abstract:
... Evapotranspiration in semiarid regions generally represents the greatest loss of water from an ecosystem and is sensitive to changes in the cover of vegetation. In this work, we compared the effects of apple tree of different ages by partitioning evapotranspiration into canopy interception (calculated), tree transpiration (thermal-dissipation probes) and soil evaporation (micro-lysimeter) in a sem ...
DOI:
10.1016/j.agwat.2017.05.010

12. Effects of compost amendment on the available soil water and grape yield in vineyards planted after land levelling

Author:
Ramos, M.C.
Source:
Agricultural water management 2017 v.191 pp. 67-76
ISSN:
0378-3774
Subject:
composts; crop yield; hydraulic conductivity; organic matter; plant available water; planting; rain; soil depth; soil profiles; soil surface sealing; soil texture; soil water retention; vines; vineyards
Abstract:
... The aim of this research was to compare the effect of compost amendment on soil water and on the available water for vines planted in levelled soils in comparison to those planted in undisturbed soils. Two vineyards, one levelled before vineyard establishment and one planted in the original soil, were compared. In each of them, the effect of compost application on the surface was compared with a c ...
DOI:
10.1016/j.agwat.2017.05.013

13. Energy balance and partitioning in partial plastic mulched and non-mulched maize fields on the Loess Plateau of China

Author:
Feng, Yu; Gong, Daozhi; Mei, Xurong; Hao, Weiping; Tang, Dahua; Cui, Ningbo
Source:
Agricultural water management 2017 v.191 pp. 193-206
ISSN:
0378-3774
Subject:
agroecosystems; canopy; corn; cropland; diurnal variation; eddy covariance; energy balance; energy flow; energy transfer; evapotranspiration; growing season; heat transfer; mulching; photosynthesis; planting; plastic film; rain; seasonal variation; soil water; soil water content; spring; transpiration; vegetation; water use efficiency; China
Abstract:
... Energy and water exchange processes between the land surface and atmosphere drive photosynthesis, evapotranspiration, sensible heat flux, energy storage in vegetation, and heating of the soil. Thus, understanding of energy exchange and partitioning is of importance for crop model development and water use efficiency improvement in raifed agro-ecosystems. The present study investigated the energy e ...
DOI:
10.1016/j.agwat.2017.06.009

14. Fate of water and nitrate using drainage water management on tile systems in east-central Illinois

Author:
Lavaire, Tito; Gentry, Lowell E.; David, Mark B.; Cooke, Richard A.
Source:
Agricultural water management 2017 v.191 pp. 218-228
ISSN:
0378-3774
Subject:
Glycine max; Zea mays; corn; crop production; drainage; groundwater; nitrates; no-tillage; rivers; runoff; soil water; soybeans; surface water; tiles; water quality; water table; watersheds; wells; Illinois
Abstract:
... Drainage water management (DWM) is a potential edge-of-field technique that is being studied as a method to improve soil water management in agricultural fields, which may reduce nitrate losses to surface waters during the non-growing season. Inline water level control structures were installed on two adjacent tile systems draining a 34ha field located in the Upper Salt Fork of the Vermillion Rive ...
DOI:
10.1016/j.agwat.2017.06.004

15. Impact of irrigation and nitrogen fertilizer rate on soil water trends and maize evapotranspiration during the vegetative and reproductive periods

Author:
Rudnick, D.R.; Irmak, S.; Djaman, K.; Sharma, V.
Source:
Agricultural water management 2017 v.191 pp. 77-84
ISSN:
0378-3774
Subject:
corn; developmental stages; evapotranspiration; fertilizer rates; grain yield; irrigation rates; magnesium; nitrogen; nitrogen fertilizers; soil water; vegetative growth; Nebraska
Abstract:
... Field research was conducted in 2011 and 2012 at the University of Nebraska-Lincoln South Central Agricultural Laboratory located near Clay Center, NE to evaluate maize actual evapotranspiration (ETa) during the vegetative and reproductive growth periods for 0, 84, 140, 196, and 252kgha−1 nitrogen (N) fertilizer treatments under full irrigation (FIT), limited irrigation (75% of FIT), and rainfed s ...
DOI:
10.1016/j.agwat.2017.06.007

16. Irrigation water management: Farmers’ practices, perceptions and adaptations at Gumselassa irrigation scheme, North Ethiopia

Author:
Yohannes, Degol Fissahaye; Ritsema, C.J.; Solomon, H.; Froebrich, J.; van Dam, J.C.
Source:
Agricultural water management 2017 v.191 pp. 16-28
ISSN:
0378-3774
Subject:
elderly; farmers; focus groups; households; irrigated farming; irrigation management; irrigation water; local government; seepage; soil salinization; surveys; water shortages; water table; water users associations; women; Ethiopia
Abstract:
... Poor irrigation water management associated with water scarcity is the major reason for underperformance of most small-scale irrigation schemes in Ethiopia. In order to devise appropriate measures for rehabilitation of the failing schemes and to enhance farmers’ adaptation capacity to water scarcity, it is important to assess site specific plot and scheme level water management practices, challeng ...
DOI:
10.1016/j.agwat.2017.05.009

17. Prosper, survive or exit: Contrasted fortunes of farmers in the groundwater economy in the Saiss plain (Morocco)

Author:
Ameur, Fatah; Kuper, Marcel; Lejars, Caroline; Dugué, Patrick
Source:
Agricultural water management 2017 v.191 pp. 207-217
ISSN:
0378-3774
Subject:
capital; entrepreneurship; farmers; farms; groundwater; intensive farming; interviews; inventories; irrigation; labor; poverty; socioeconomic status; subsidies; wells; Morocco
Abstract:
... In North Africa, the development of groundwater-based irrigation enabled agricultural intensification and market-oriented production. Groundwater use was also often said to alleviate smallholder poverty. However, there is growing evidence linking the expansion of groundwater-based agriculture with increasing socioeconomic inequalities in a context of declining water tables and rapid agrarian chang ...
DOI:
10.1016/j.agwat.2017.06.014

18. Quantification of lateral seepage from farmland during maize growing season in arid region

Author:
Li, Jiang; Wang, Xinxin; Bai, Liangliang; Mao, Xiaomin
Source:
Agricultural water management 2017 v.191 pp. 85-97
ISSN:
0378-3774
Subject:
agricultural land; arid zones; basin irrigation; coarse-textured soils; corn; fine-textured soils; growing season; irrigation scheduling; irrigation water; mathematical models; monitoring; rhizosphere; seepage; soil texture; soil water; vegetation; water use efficiency; watersheds
Abstract:
... Quantification of lateral seepage from farmland under basin irrigation in arid region is essential for the evaluation of irrigation water use efficiency and for understanding its contribution to local natural vegetation. Field monitoring and numerical simulation of soil water dynamics were conducted by HYDRUS-2D in the oasis of middle reaches of Heihe River Basin during maize growing seasons in 20 ...
DOI:
10.1016/j.agwat.2017.06.006

19. Simulation of potato yield in temperate condition by the AquaCrop model

Author:
Razzaghi, Fatemeh; Zhou, Zhenjiang; Andersen, Mathias N.; Plauborg, Finn
Source:
Agricultural water management 2017 v.191 pp. 113-123
ISSN:
0378-3774
Subject:
canopy; climate; corn; crop yield; deficit irrigation; dry matter accumulation; field experimentation; irrigation rates; model validation; models; potatoes; rice; soil water; soil water balance; soil water content; sowing; tubers; water stress; wheat
Abstract:
... Potato production ranks fourth in the world after rice, wheat, and maize and it is highly sensitive to water stress. It is thus very important to implement irrigation management strategies to minimize the effects of water stress under different climate conditions. The use of modelling tools to calculate the soil water balance on a daily basis has become widespread in the last decades. Therefore, t ...
DOI:
10.1016/j.agwat.2017.06.008

20. Three years of monitoring evapotranspiration components and crop and stress coefficients in a deficit irrigated intensive olive orchard

Author:
Conceição, Nuno; Tezza, Luca; Häusler, Melanie; Lourenço, Sónia; Pacheco, Carlos A.; Ferreira, M. Isabel
Source:
Agricultural water management 2017 v.191 pp. 138-152
ISSN:
0378-3774
Subject:
Olea europaea; autumn; crop coefficient; crops; deficit irrigation; drought; eddy covariance; evaporation; evapotranspiration; field capacity; heat; irrigation scheduling; leaf water potential; monitoring; olives; orchards; rain; sap flow; soil water; soil water content; spring; summer; time series analysis; transpiration; water stress; wet season; winter; Portugal
Abstract:
... A long-term experiment was conducted to study water use of olive trees in a six-year-old, deficit irrigated, intensive olive orchard (‘Arbequina’) in one of the driest regions of Southern Portugal. Woody agricultural crops are regularly cultivated with some water stress to maintain an equilibrium between the vegetative and reproductive cycles, to improve production quality and, when irrigated, to ...
DOI:
10.1016/j.agwat.2017.05.011