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Johnson Grass Control with Dalapon and Liquified Petroleum BurnersArle, H. Fred, Hamilton, K. C., McRae, G. N. 04 1900 (has links)
Revised
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A study of certain morphological and physiological characteristics of johnsongrassSingh, Deep Narain. January 1959 (has links)
Call number: LD2668 .T4 1959 S57
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Johnsongrass Control in ArizonaHamilton, K. C., Heathman, Stanley. 01 1900 (has links)
This item was digitized as part of the Million Books Project led by Carnegie Mellon University and supported by grants from the National Science Foundation (NSF). Cornell University coordinated the participation of land-grant and agricultural libraries in providing historical agricultural information for the digitization project; the University of Arizona Libraries, the College of Agriculture and Life Sciences, and the Office of Arid Lands Studies collaborated in the selection and provision of material for the digitization project.
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Johnsongrass control by herbicides applied to regrowthGamble, Gary Lee. January 1962 (has links)
Call number: LD2668 .T4 1962 G36
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Johnson Grass ControlHeard, H. C. 01 December 1917 (has links)
This item was digitized as part of the Million Books Project led by Carnegie Mellon University and supported by grants from the National Science Foundation (NSF). Cornell University coordinated the participation of land-grant and agricultural libraries in providing historical agricultural information for the digitization project; the University of Arizona Libraries, the College of Agriculture and Life Sciences, and the Office of Arid Lands Studies collaborated in the selection and provision of material for the digitization project.
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Johnson Grass ControlArle, H. Fred, Everson, E. H. 09 1900 (has links)
No description available.
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The formulation of an economical chemical herbicide to kill Johnson and Bermuda grassTaylor, Jack P. January 1949 (has links)
no abstract provided by author / Master of Science
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Evaluation of CGA-136872 and DPX-V9360 for postmergence use in cornNgouajio, Mathieu 14 March 2009 (has links)
The potential of CGA-136872 (3-[4,6-bis(difluoromethoxy) pyrimidin-2-yl-1-(2-methoxycarbonyl-phenylsulfonyl) urea) and DPX-V9360 (3-pyridinecarboxaminde, 2-(((4,6-dimethoxy pyrimidin-2yl) aminocarbonyl)) aminosulfonyl) ))-N,N-dimethyl) were investigated for postemergence use in corn, including corn tolerance, weed control and combinations of CGA-136872 with other postemergence corn herbicides for weed control.
CGA-136872 Applied at rates of 1.2, 2.5, 5.0 and 10.0 times the suggested recommended use rate in corn (variety Southern States 565) caused more injury at the 5-leaf stage than at the 7- and 9-leaf stage of corn. Recovery from injury was rapid and complete at 5 weeks after treatment (WAT) and no yield reduction was observed. Several corn varieties treated with twice the suggested use rate of CGA-136872 and DPX-V9360 showed injury that was both herbicide and variety dependent. Most injury occurred at 1 and 2 WAT. Corn recovery was complete at 5 WAT, but yield reduction on some varieties was observed with CGA-136872 treatments.
In the weed control study, both herbicides showed high activity on johnsongrass (Sorghum halepense (L.) Pers.), giant foxtail (Setaria faberi Herr.), common lambsquarters (Chenopodium album L.) and redroot pigweed (Amaranthus retroflexus L.), particularly with early applications. However, johnsongrass rhizome regrowth prevented full season control of this species with early postemergence applications.
Combinations of CGA-136872 with several other herbicides resulted in significant benefit in control of common lambsquarters and redroot pigweed while johnsongrass and giant foxtail control was not improved. Reduced control of johnsongrass was observed when CGA-136872 was applied in combination with paraquat (1,1’-dimethy1-4,4’-bipyridilium ion). Similar results were observed for giant foxtail control when CGA-136872 was applied with 2,4-D ((2,4-dichlorophenoxy) acetic acid) and dicamba (3,6-dichloro-2-methoxybenzoic acid).
Results of this research indicate that both CGA-136872 and DPX-V9360 have good potential for postemergence use in corn, and could represent an important supplement to existing postemergence corn herbicides. / Master of Science
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