<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Measuring and Modeling the Water Balance in Low-Rainfall Cropping Systems"^^ . "In low-rainfall cropping systems, understanding the water balance, and in particular the storage of soil water\r\nin the rooting zone for use by crops, is considered critical for devising risk management strategies for grain-based farming.\r\nCrop-soil modeling remains a cost-effective option for understanding the interactions between rainfall, soil, and crop\r\ngrowth, from which management options can be derived. The objective of this study was to assess the error in the prediction\r\nof soil water content at key decision points in the season against continuous, multi-layer soil water measurements made\r\nwith frequency domain reflectometry (FDR) probes in long-term experiments in the Mallee region of South Australia and\r\nNew South Wales. Field estimates of the crop lower limit or drained upper limit were found to be more reliable than laboratory-\r\nbased estimates, despite the fact that plant-available water capacity (PAWC) did not substantially differ between the\r\nmethods. Using the Agricultural Production Systems sIMulator (APSIM) to simulate plant-available water over three-year\r\nrotations, predicted soil water was within 7 mm (PAWC 64 to 99 mm) of the measured data across all sowing events and\r\nrotations. Simulated (n = 46) wheat grain production resulted in a root mean square error (RMSE) of 492 kg ha-1, which is\r\nonly marginally smaller than that of other field studies that derived soil water limits with less detailed methods. This study\r\nshows that using field-derived data of soil water limits and soil-specific settings for parameterization of other properties\r\nthat determine soil evaporation and water redistribution enables APSIM to be widely applied for managing climate risk in\r\nlow-rainfall environments."^^ . "2017" . . "60" . "6" . . "American Society of Agricultural and Biological Engineers"^^ . . . "Transactions of the ASABE"^^ . . . "21510040" . . . . . . . . . . . . . . . . . . . "D"^^ . "Mowat"^^ . "D Mowat"^^ . . "M P"^^ . "Hoffmann"^^ . "M P Hoffmann"^^ . . "J A"^^ . "Baldock"^^ . "J A Baldock"^^ . . "C W"^^ . "Davoren"^^ . "C W Davoren"^^ . . "A M"^^ . "Whitbread"^^ . "A M Whitbread"^^ . . . . . . "Measuring and Modeling the Water Balance in Low-Rainfall Cropping Systems (PDF)"^^ . . . . . "Measuring and Modeling the Water Balance in Low-Rainfall Cropping Systems.pdf"^^ . . . "Measuring and Modeling the Water Balance in Low-Rainfall Cropping Systems (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Measuring and Modeling the Water Balance in Low-Rainfall Cropping Systems (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Measuring and Modeling the Water Balance in Low-Rainfall Cropping Systems (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Measuring and Modeling the Water Balance in Low-Rainfall Cropping Systems (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Measuring and Modeling the Water Balance in Low-Rainfall Cropping Systems (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #11075 \n\nMeasuring and Modeling the Water Balance in Low-Rainfall Cropping Systems\n\n" . "text/html" . . . "Climate Risk"@en . . . "Crop Modelling"@en . . . "Soil"@en . . . "Cropping and Farming Systems"@en . . . "Soil Science"@en . . . "Water Resources"@en . .