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- 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
-
http://dx.doi.org/10.1016/j.agwat.2017.06.018
- 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
-
http://dx.doi.org/10.1016/j.agwat.2017.06.005
- 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
-
https://dx.doi.org/10.1016/j.agwat.2017.06.013
- 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
-
https://dx.doi.org/10.1016/j.agwat.2017.06.003
- 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
-
https://dx.doi.org/10.1016/j.agwat.2017.06.001
- 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
-
http://dx.doi.org/10.1016/j.agwat.2017.06.011
- 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
-
https://dx.doi.org/10.1016/j.agwat.2017.05.014
- 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
-
http://dx.doi.org/10.1016/j.agwat.2017.06.010
- 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
-
http://dx.doi.org/10.1016/j.agwat.2017.06.015
- 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
-
http://dx.doi.org/10.1016/j.agwat.2017.05.012
- 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
-
http://dx.doi.org/10.1016/j.agwat.2017.05.010
- 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
-
https://dx.doi.org/10.1016/j.agwat.2017.05.013
- 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
-
https://dx.doi.org/10.1016/j.agwat.2017.06.009
- 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
- Chorus Open Access:
- 10.1016/j.agwat.2017.06.004
-
http://dx.doi.org/10.1016/j.agwat.2017.06.004
- 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
-
http://dx.doi.org/10.1016/j.agwat.2017.06.007
- 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
-
http://dx.doi.org/10.1016/j.agwat.2017.05.009
- 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
-
https://dx.doi.org/10.1016/j.agwat.2017.06.014
- 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
-
http://dx.doi.org/10.1016/j.agwat.2017.06.006
- 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
-
http://dx.doi.org/10.1016/j.agwat.2017.06.008
- 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
-
https://dx.doi.org/10.1016/j.agwat.2017.05.011