caa a22 4500 477111777 CHVBK 20180405111611.0 cr unu---uuuuu 170330e19960301xx s 000 0 eng 10.1007/BF00015313 doi (NATIONALLICENCE)springer-10.1007/BF00015313 Effect of field limestone applications on cadmium content of sunflower ( Helianthus annuus L.) leaves and kernels [Elektronische Daten] [Yin-Ming Li, Rufus Chaney, Albert Schneiter, Burton Johnson] Nonoilseed sunflower (Helianthus annuus L.) is naturally higher in cadmium (Cd) than many other grain crops. Because raising soil pH usually depresses Cd uptake by most species, a study was designed to determine if application of agricultural limestone to neutralize soil acidity would decrease Cd uptake by sunflower plants grown on different soils in the production area of North Dakota. The field experiments were conducted at 3 locations in 1991 and 2 locations in 1992. At each site, limestone was applied to bring soil pH to 6.5-7.0, or an additional 45 Mg ha-1 more limestone was applied, and these two treatments were compared to no-lime control. Commercial nonoilseed hybrid 954 was planted in these experiments. The rapid short-term lime-soil reaction occurred in first 12 weeks following limestone application. Mean kernel Cd concentration for each treatment varied from 0.35 to 1.45 mg kg-1 DW in the first year of the experiments, and from 0.37 to 1.23 mg kg-1 DW in the experiments of 1992 across all locations. Large variations in kernel Cd levels between locations were obtained. There were no significant differences among control and limestone treatments for kernel Cd, seedling leaf Cd and diagnostic leaf Cd within each location, respectively. In regression analysis, we found that kernel Cd level correlated with diagnostic leaf Cd concentration in each treatment, but poor correlations were obtained among other variables. These results indicated that limestone application did not reduce Cd uptake and transfer to kernels of sunflower, in contrast with most species studied. Kluwer Academic Publishers, 1996 cadmium nationallicence limestone nationallicence sunflower nationallicence Li Yin-Ming Environmental Chemistry Laboratory, USDA ARS, 20705, Beltsville, MD, USA aut Chaney Rufus Environmental Chemistry Laboratory, USDA ARS, 20705, Beltsville, MD, USA aut Schneiter Albert Department of Plant Sciences, North Dakota State University, 58105, Fargo, ND, USA aut Johnson Burton Department of Plant Sciences, North Dakota State University, 58105, Fargo, ND, USA aut Plant and Soil Kluwer Academic Publishers; gopher://gopher.wkap.nl 180/2(1996-03-01), 297-302 0032-079X 180:2<297 1996 180 11104 https://doi.org/10.1007/BF00015313 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00015313 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li Yin-Ming Environmental Chemistry Laboratory, USDA ARS, 20705, Beltsville, MD, USA aut NATIONALLICENCE 700 1- Chaney Rufus Environmental Chemistry Laboratory, USDA ARS, 20705, Beltsville, MD, USA aut NATIONALLICENCE 700 1- Schneiter Albert Department of Plant Sciences, North Dakota State University, 58105, Fargo, ND, USA aut NATIONALLICENCE 700 1- Johnson Burton Department of Plant Sciences, North Dakota State University, 58105, Fargo, ND, USA aut NATIONALLICENCE 773 0- Plant and Soil Kluwer Academic Publishers; gopher://gopher.wkap.nl/ 180/2(1996-03-01), 297-302 0032-079X 180:2<297 1996 180 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer