Maintaining intensive agriculture overlying aquifers using the threshold nitrate root‐uptake phenomenon

2021 ◽  
Author(s):  
Daniel Kurtzman ◽  
Beeri Kanner ◽  
Yehuda Levy ◽  
Ido Nitsan ◽  
Asher Bar‐Tal
Keyword(s):  
Root Uptake ◽  
Intensive Agriculture

Organochlorine Residues in Brook Trout and Yellow Perch From New Brunswick and Nova Scotia (Canada) Lakes

1987 ◽  
Vol 22 (3) ◽  
pp. 352-364
Author(s):  
R. Peterson ◽  
S. Ray
Keyword(s):  
Nova Scotia ◽  
New Brunswick ◽  
Brook Trout ◽  
Yellow Perch ◽  
Intensive Agriculture ◽  
Fish Tissues ◽  
North Central ◽  
Ddt Metabolites ◽  
Headwater Lakes

Abstract Brook trout and yellow perch collected while surveying New Brunswick and Nova Scotia headwater lakes were analyzed for DDT metabolites, chlordane, hexacyclohexane isomers, hexachlorobenzene, toxaphene and PCB’s. Concentrations of DDT metabolites were much higher from fish taken from lakes in north-central N.B. (200-700 ng/g wet wt) than from fish taken elsewhere (<10 ng/g). Seventy to 90% of the DDT metabolites was DDE. Chlordane (3-13 ng/g) was analyzed in seven trout, six of them from central N.B. areas with intensive agriculture. Isomers of hexachlorocyclohexane were in highest concentration from north-central N.B. (10-20 ng/g), eastern N.S. (5-15 ng/g) and southern N.B. (5-20 ng/g). In most cases, alpha-hexachlorocyclohexane (lindane) was the isomer in highest concentration. Concentrations of hexachlorobenzene in fish tissues was highly variable with no obvious geographic bias. PCB’s were detected in very few fish, and no toxaphene was detected.

scholarly journals Publisher Correction: Origin and hydrodynamics of xylem sap in tree stems, and relationship to root uptake of soil water

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yasunori Mahara ◽  
Tomoko Ohta ◽  
Jyunichi Ohshima ◽  
Kazuya Iizuka
Keyword(s):  
Soil Water ◽  
Xylem Sap ◽  
Root Uptake

scholarly journals Diffusion Limitations in Root Uptake of Cadmium and Zinc, But Not Nickel, and Resulting Bias in the Michaelis Constant

2012 ◽  
Vol 160 (2) ◽  
pp. 1097-1109 ◽  
Author(s):  
Fien Degryse ◽  
Afsaneh Shahbazi ◽  
Liesbeth Verheyen ◽  
Erik Smolders
Keyword(s):  
Root Uptake ◽  
Michaelis Constant ◽  
Diffusion Limitations

scholarly journals Distribution of flying insects across landscapes with intensive agriculture in temperate areas

2021 ◽  
Vol 129 ◽  
pp. 107889
Author(s):  
C.J.M. Musters ◽  
Tracy R. Evans ◽  
J.M.R. Wiggers ◽  
Maarten van 't-Zelfde ◽  
Geert R. de Snoo
Keyword(s):  
Intensive Agriculture ◽  
Flying Insects

scholarly journals Per- and polyfluoroalkyl substances (PFASs) in the soil–plant system: Sorption, root uptake, and translocation

2021 ◽  
Vol 156 ◽  
pp. 106642
Author(s):  
Weiping Mei ◽  
Hao Sun ◽  
Mengke Song ◽  
Longfei Jiang ◽  
Yongtao Li ◽  
...  
Keyword(s):  
Root Uptake ◽  
Plant System ◽  
Polyfluoroalkyl Substances

Effect of application time of radionuclides on their root uptake by Chinese cabbage and radish

1998 ◽  
Vol 39 (2) ◽  
pp. 183-198 ◽  
Author(s):  
Y.H Choi ◽  
C.W Lee ◽  
S.R Kim ◽  
J.H Lee ◽  
J.S Jo
Keyword(s):  
Chinese Cabbage ◽  
Root Uptake ◽  
Application Time
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