caa a22 4500 606218556 CHVBK 20210128101113.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s11104-014-2304-5 doi (NATIONALLICENCE)springer-10.1007/s11104-014-2304-5 Temporal processes of soil water status in a sugarcane field under residue management [Elektronische Daten] [G. Awe, J. Reichert, L. Timm, O. Wendroth] Background and aims: The knowledge of soil water storage is vital for rational agricultural management, and in soil-plant-water relations. This study was conducted to evaluate the temporal processes of soil water status of a sugarcane field under residue management during the 2011/2012 and 2012/2013 growing seasons in southern Brazil. Methods: Soil water storage (SWS) and matric potential (Ψ) were monitored in the 0-10 and 10-20 and 40-60cm layers using time domain reflectometer sensors and tensiometers while precipitation (P) and potential crop evapotranspiration (ET) were obtained using rainguage and daily weather data. Results: There was significant temporal variation of soil water status with soil depths. SWS was lower while matric potential was higher in no mulch treatment than in mulched treatment in both growing seasons. SWS cross-correlated with other variables, however, results were not the same for the different soil depths and treatments. Classical regression of SWS from combinations of log (Ψ), ET and P gave satisfactory results, however state-time analysis was better with higher R2 values and incorporated errors. Conclusions: State-time analysis, combined with state-space could be a useful tool for good predictions of soil water status. Residue mulching influenced soil water status, thus proved to be a sustainable soil management practice. Springer International Publishing Switzerland, 2014 Soil water storage nationallicence Soil-atmospheric variables nationallicence Residue management nationallicence Classical regression nationallicence State-time analysis nationallicence Awe G. Department of Soil Science, Center for Rural Sciences, Federal University of Santa Maria (UFSM), Av. Roraima 1000, 97105-900, Santa Maria, RS, Brazil aut Reichert J. Department of Soil Science, Center for Rural Sciences, Federal University of Santa Maria (UFSM), Av. Roraima 1000, 97105-900, Santa Maria, RS, Brazil aut Timm L. Department of Rural Engineering, Federal University of Pelotas (UFPel), C.P. 354, 96001-970, Pelotas, RS, Brazil aut Wendroth O. Department of Plant and Soil Sciences, University of Kentucky, Agricultural Science Center, 1100 South Limestone St., 40546-0091, Lexington, KY, USA aut Plant and Soil Springer International Publishing 387/1-2(2015-02-01), 395-411 0032-079X 387:1-2<395 2015 387 11104 https://doi.org/10.1007/s11104-014-2304-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-014-2304-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Awe G. Department of Soil Science, Center for Rural Sciences, Federal University of Santa Maria (UFSM), Av. Roraima 1000, 97105-900, Santa Maria, RS, Brazil aut NATIONALLICENCE 700 1- Reichert J. Department of Soil Science, Center for Rural Sciences, Federal University of Santa Maria (UFSM), Av. Roraima 1000, 97105-900, Santa Maria, RS, Brazil aut NATIONALLICENCE 700 1- Timm L. Department of Rural Engineering, Federal University of Pelotas (UFPel), C.P. 354, 96001-970, Pelotas, RS, Brazil aut NATIONALLICENCE 700 1- Wendroth O. Department of Plant and Soil Sciences, University of Kentucky, Agricultural Science Center, 1100 South Limestone St., 40546-0091, Lexington, KY, USA aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 387/1-2(2015-02-01), 395-411 0032-079X 387:1-2<395 2015 387 11104