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Effects of Soil and Crop Management Practices on the Removal of Strontium‐90 by Plant Uptake, Leaching, Runoff and Erosion 1
Author(s) -
Haghiri F.
Publication year - 1969
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1969.00021962006100050043x
Subject(s) - surface runoff , leaching (pedology) , leachate , environmental science , lime , agronomy , mulch , strontium , lessivage , crop rotation , soil water , crop , chemistry , soil science , environmental chemistry , biology , ecology , paleontology , organic chemistry
Long‐term field investigations are being conducted to study the effect of management practices on the removal of 90 Sr by runoff, leaching, erosion and plant uptake. The management practices consist of one crop rotation with high and low rates of lime, permanent grass, continuous corn, and gravel mulch with no vegetation. Over a 5‐year period, the 90 Sr content of the soil in a 0‐10‐cm depth decreased in all cropping systems. The percent 90 Sr loss by runoff water and sediment was negatively correlated with time while the percent 90 Sr in the leachate water increased with time. The percent 90 Sr removal by runoff and leachate water was maximum under gravel mulch and minimum under grass treatments. Sod crops were more effective in minimizing the 90 Sr loss in runoff and leachate water than cultivated crops. High Ca accumulating crops such as alfalfa removed more 90 Sr than low accumulators such as corn. High rates of lime reduced the 90 Sr uptake by crops and the removal by leachate water.