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You searched for: Journal Irrigation and drainage Remove constraint Journal: Irrigation and drainage Publication Year 2017 Remove constraint Publication Year: 2017 Source 2017 v.66 no.2 Remove constraint Source: 2017 v.66 no.2
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1. Comparing Simulated Nitrate‐Nitrogen Concentration In Subsurface Drainage Using Drainmod‐N II and RZWQM2

Author:
Du, Xuan; Feng, Hao; Helmers, Matthew J.; Qi, Zhiming
Source:
Irrigation and drainage 2017 v.66 no.2 pp. 238-251
ISSN:
1531-0353
Subject:
fertilizer rates; field experimentation; maximum contaminant level; models; nitrate nitrogen; nitrogen; prediction; rhizosphere; statistical analysis; subsurface drainage; water quality; Iowa
Abstract:
... This study used a 16‐year (1989–2004) field experiment conducted in Iowa to compare the performance of DRAINMOD‐N II and Root Zone Water Quality Model2 (RZWQM2) in predicting nitrate‐nitrogen (NO₃‐N) concentration and losses in a subsurface drained field at nine nitrogen application rates (0–252 kg N ha⁻¹). Results showed that the performance of both models can ‘satisfactorily’ predict NO₃‐N conce ...
DOI:
10.1002/ird.2093

2. Conjunctive use of saline and non‐saline water in an irrigation district of the Yellow River Basin

Author:
Xue, Jing; Ren, Li
Source:
Irrigation and drainage 2017 v.66 no.2 pp. 147-162
ISSN:
1531-0353
Subject:
Helianthus annuus; corn; crop yield; freshwater; groundwater; irrigation; irrigation water; models; river water; salts; soil salinity; spring; spring wheat; water salinity; watersheds; zoning; Yellow River
Abstract:
... In the Hetao Irrigation District (HID), reduction of the diverted Yellow River water for agriculture makes partial replacement of fresh water for irrigation by shallow saline groundwater a possible way to alleviate the shortage of freshwater resources. In this study, a SWAP‐WOFOST agro‐hydrological model was calibrated and validated, and then applied in a distributed manner to estimate crop yield, ...
DOI:
10.1002/ird.2102

3. Development, calibration and testing of a low‐cost small lysimeter for monitoring evaporation and transpiration

Author:
Bello, Zaid A.; Van Rensburg, Leon D.
Source:
Irrigation and drainage 2017 v.66 no.2 pp. 263-272
ISSN:
1531-0353
Subject:
barley; drainage; evaporation; greenhouses; hysteresis; lysimeters; models; monitoring; reading; soil profiles; soil water; soil water balance; temperature; transpiration; water content; winter
Abstract:
... Weighing lysimeters differ in shape and size and are well established in measuring soil water balance components, such as evaporation, transpiration and drainage. This study addresses the development, calibration and testing of low‐cost small lysimeters for measuring evaporation and transpiration of barley in a glasshouse for three consecutive winter seasons (2011–2013). Forty‐one small lysimeters ...
DOI:
10.1002/ird.2095

4. Estimating Technical and Irrigation Water Productivities in Rice Production in Tamil Nadu, India

Author:
Kuppannan, Palanisami; Coimbatore Ramarao, Ranganathan; Samiappan, Senthilnathan; Malik, Ravinder Paul Singh
Source:
Irrigation and drainage 2017 v.66 no.2 pp. 163-172
ISSN:
1531-0353
Subject:
crop production; irrigation water; models; India
Abstract:
... The overall measure of farm‐level technical efficiency is generally used to derive recommendations for the use of individual inputs. In this paper, joint estimation is made of technical and individual input‐use (e.g. irrigation water productivity) efficiencies. This indicates that overall technical efficiency is not an indication of the efficiency level of all the individual inputs used. This is b ...
DOI:
10.1002/ird.2099

5. Furrow Lateral Wetting Potential For Optimizing Bed Width In Silty Clay

Author:
Akbar, Ghani; Ahmad, Muhammad Munir; Khan, Matiullah; Asif, Muhammad
Source:
Irrigation and drainage 2017 v.66 no.2 pp. 218-226
ISSN:
1531-0353
Subject:
crops; decision making; field capacity; furrow irrigation; furrows; models; rhizosphere; silty clay soils; soil water; wetting front
Abstract:
... Water application is generally assumed to be uniformly applied during furrow irrigation into the root zone of crops between the wetted furrows. However, non‐uniform distribution of applied water has been widely demonstrated along the field length, but there have been few studies focused on quantifying the lateral distribution of the wetting front from wetted furrows into the bed middle. Therefore, ...
DOI:
10.1002/ird.2092

6. Identification of Potential Rainwater‐Harvesting Sites for the Sustainable Management of a Semi‐Arid Watershed

Author:
Rejani, R.; Rao, K.V.; Srinivasa Rao, C.H.; Osman, M.; Sammi Reddy, K.; George, Biju; Pratyusha Kranthi, G.S.; Chary, G.R.; Swamy, M.V.; Rao, P.J.
Source:
Irrigation and drainage 2017 v.66 no.2 pp. 227-237
ISSN:
1531-0353
Subject:
Internet; farm ponds; geographic information systems; irrigation; land use and land cover maps; planning; rain; runoff; soil depth; soil texture; water harvesting; watersheds; India
Abstract:
... In the present study, the potential locations for constructing different water‐harvesting structures in a semi‐arid watershed located at Goparajpalli, in southern India, were derived using GIS in three stages. The locations were first identified based on land use land cover, land slope, rainfall characteristics, soil texture and soil depth. Then a number of structures and suitable semi‐arid rainfe ...
DOI:
10.1002/ird.2101

7. Modelling of Response of the Growth and Yield of Soybean to Full and Deficit Irrigation by Using Aquacrop

Author:
Adeboye, Omotayo B.; Schultz, Bart; Adekalu, Kenneth O.; Prasad, Krishna
Source:
Irrigation and drainage 2017 v.66 no.2 pp. 192-205
ISSN:
1531-0353
Subject:
aboveground biomass; basins; canopy; climate change; crop yield; data collection; deficit irrigation; evapotranspiration; farms; filling period; flowering; irrigation rates; model validation; models; prediction; soil water; soil water content; soybeans; Nigeria
Abstract:
... The use of crop yield models is important in simulating and predicting yield of crops and in making decisions under changing climate conditions, in order to optimize production. In this study the AquaCrop model was calibrated and validated to predict canopy cover, dry above‐ground biomass, yield, evapotranspiration, soil moisture content and water productivity of soybeans. The study was conducted ...
DOI:
10.1002/ird.2073

8. Participation of farmers in irrigation water management in Indonesia: a review

Author:
Fulazzaky, Mohamad Ali
Source:
Irrigation and drainage 2017 v.66 no.2 pp. 182-191
ISSN:
1531-0353
Subject:
farmers; infrastructure; irrigation management; irrigation water; public policy; society; stakeholders; water resources; Indonesia
Abstract:
... It has been argued that policy reform to involve stakeholders in water management is a priority for Indonesia. Given the large allocation of water to the irrigation sector, the improved management of infrastructure and more productive use of irrigation water are important issues. If the enactments of Law No. 7/2004 on water resources and Government Regulation No. 20/2006 on irrigation have accommo ...
DOI:
10.1002/ird.2085

9. Performance Evaluation of a Traveller Irrigation System

Author:
Jangra, Pardeep; Jhorar, R.K.; Kumar, Sanjay; Kamra, S.K.
Source:
Irrigation and drainage 2017 v.66 no.2 pp. 173-181
ISSN:
1531-0353
Subject:
farms; irrigation water; soil water; sprinkler irrigation; sprinklers; water distribution; India
Abstract:
... A field evaluation study for a traveller irrigation system (TIS), which is a relatively new introduction for Indian conditions, was undertaken at the research farm of Chaudhary Charan Singh (CCS) Haryana Agricultural University, Hisar, India. The major objectives were to evaluate the hydraulic performance and to describe the operational aspects of a TIS under different travel speeds. The TIS, with ...
DOI:
10.1002/ird.2097

10. Spatial Root Zone Soil Water Content Estimation in Agricultural Lands Using Bayesian‐Based Artificial Neural Networks and High‐ Resolution Visual, NIR, and Thermal Imagery

Author:
Hassan‐Esfahani, Leila; Torres‐Rua, Alfonso; Jensen, Austin; Mckee, Mac
Source:
Irrigation and drainage 2017 v.66 no.2 pp. 273-288
ISSN:
1531-0353
Subject:
agricultural land; algorithms; application rate; irrigation scheduling; neural networks; remote sensing; rhizosphere; soil profiles; soil water; soil water content; water content; Utah
Abstract:
... Soil moisture is an important parameter in irrigation scheduling and application. Knowledge of root zone volumetric water content can support decisions for more efficient irrigation management by enabling estimation of required water application rates at appropriate temporal and spatial scales. The study presented here proposes a data mining approach that combines known field conditions with remot ...
DOI:
10.1002/ird.2098

11. The Response Of Maize (ZEA mays L.) Grain Yield to Water and Nitrogen Supply in An Eastern Croatian Environment

Author:
Marković, Monika; Šoštarić, Jasna; Josipović, Marko; Zebec, Vladimir; Špoljarević, Marija; Lisjak, Miroslav; Teklić, Tihana
Source:
Irrigation and drainage 2017 v.66 no.2 pp. 206-217
ISSN:
1531-0353
Subject:
Zea mays; corn; drought; fertilizer application; field capacity; flowering; grain yield; hybrids; irrigation; leaves; nitrogen; nitrogen fertilizers; proline; rain; soil water; soil water content; Croatia
Abstract:
... During the 3‐year study, maize (Zea mays L.) production in the eastern Republic of Croatia suffered great losses due to periods of flood (2010) and drought (2011 and 2012). An excessive amount of water as well as lack of it caused variation of yield and efficiency of irrigation scheduling. Irrigation treatments included a rainfed treatment and irrigation up to soil water content 80–100% of field c ...
DOI:
10.1002/ird.2100

12. Vertical electrical sounding (ves) for salinity assessment of water‐bearing formations

Author:
Sikandar, Pervaiz; Christen, Evan W.; Stein, Thomas M.
Source:
Irrigation and drainage 2017 v.66 no.2 pp. 252-262
ISSN:
1531-0353
Subject:
aquifers; cost benefit analysis; electrical resistance; electrodes; irrigation; models; rivers; salinity; soil; surveys; water quality; wells; Pakistan
Abstract:
... Electrical resistivity surveys (1‐D) were carried out at selected sites in the region between the confluent rivers (Ravi and Jhelum) of Punjab, Pakistan, to audit tubewell placement and depth in order to minimize the amount of salt applied to the soil through irrigation. The Schlumberger electrode configuration was employed to collect the resistivity data and the resultant resistivity vs depth mod ...
DOI:
10.1002/ird.2094