Effects of Trifluralin on Fertilizer Phosphorus Uptake Patterns by Cotton and Soybean Seedlings
1972
Cathey, George W. | Sabbe, Wayne E.
Two greenhouse experiments were conducted to study the effect of trifluralin (α, α, α, 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).
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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