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Effects of Trifluralin on Fertilizer Phosphorus Uptake Patterns by Cotton and Soybean Seedlings 1
Author(s) -
Cathey George W.,
Sabbe Wayne E.
Publication year - 1972
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/agronj1972.00021962006400020037x
Subject(s) - trifluralin , fertilizer , agronomy , phosphorus , gossypium hirsutum , chemistry , biology , pesticide , organic chemistry
Two greenhouse experiments were conducted to study the effect of trifluralin ( a, a, a, trifluoro ‐ 2, 6‐dinitro‐N, N‐dipropyl ‐ p‐ toluidine) on P uptake patterns by cotton ( Gossypium hirsutum L.) and soybean [ Glycine max (L.) Merr.] seedlings. Fertilizer P uptake from each of three soil zones was altered when the herbicide was present in the root substrate. The greatest alteration occurred when the herbicide was located in the center soil zone (5 to 10 cm). The uptake of P was decreased when the fertilizer and trifluralin were located in the same soil zone, whereas, in some cases a stimulation of P uptake from the fertilizer zone occurred when the herbicide was confined to a separate soil zone. The fertilizer P uptake was affected least when the herbicide was placed in the top soil zone (0 to 5 cm).