Influence of Soil Properties on the Phytotoxicity of Atrazine, Ametryne, Prometryne, and Diuron in Puerto Rican Soils
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How to Cite

Liu, L. C., & Cibes Viadé, H. (1968). Influence of Soil Properties on the Phytotoxicity of Atrazine, Ametryne, Prometryne, and Diuron in Puerto Rican Soils. The Journal of Agriculture of the University of Puerto Rico, 52(4), 269–280. https://doi.org/10.46429/jaupr.v52i4.11486

Abstract

Thirteen soils representing a wide range of physical and chemical properties were used in this study. Four herbicides including Atrazine, Ametryne, Prometryne, and Diuron were applied at a concentration series from 0.5 to 32 p.p.m. to each soil, with the exception of Caño Tiburones soil. Kanota oat (Avena sativa L.) was chosen as an indicator plant. ED50  values were obtained for the various soil types. The result indicated that ED50  values varied greatly with different soil types. Simple, partial, and multiple correlations were made among ED50  values and different soil properties. It was found that the organic matter was the major soil property which contributed chiefly to the phytotoxicity of herbicides. A theoretical relationship between percent soil organic matter and p.p.m.w. of herbicides required for 50-percent fresh-weight reduction of oat was obtained for herbicide dosage-prediction purpose.
https://doi.org/10.46429/jaupr.v52i4.11486
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