Gretchen F. Sassenrath

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Photosynthesis in domestic tomato (Lycopersicon esculentum L.) is highly sensitive to low temperature, particularly when accompanied by high light. Since previous studies have established that the inhibited plants retain photosynthetic electron transfer and ATP formation competence, we sought to identify specific steps in the photosynthetic carbon reduction(More)
Uncertainty analysis of an irrigation scheduling model for water management in crop production" (2015). Keywords: Irrigation schedule modeling Uncertainty analysis Soil water balance Agricultural production tools Crop water management a b s t r a c t Irrigation scheduling tools are critical to allow producers to effectively manage water resources for crop(More)
This manuscript presents research results examining phosphorus (P) management in a soil–plant system for three variables: i) internal resources of soil available phosphorus, ii) cropping sequence, and iii) external input of phosphorus (manure, fertilizers). The research was conducted in long-term cropping sequences with oilseed rape (10 rotations) and maize(More)
This research was conducted to develop relationships among evapotranspiration (ET), percolation (PERC), groundwater discharge to the stream (GWQ), and water table fluctuations through a modeling approach. The Soil and Water Assessment Tool (SWAT) hydrologic and crop models were applied in the Big Sunflower River watershed (BSRW; 7660 km(2) ) within the(More)
In this study, we assessed the adaptive effects of irrigation on climatic risks for three crops (maize, soybean, and wheat) at the regional scale from 1981 to 2012 in the Central US. Based on yields of 183 counties for maize, 121 for soybean and 101 for wheat, statistical models were developed for irrigated, rainfed and county-level yields. Results show(More)
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