Response of Cotton to Precision-Guided Cultivation and DSMA in a Dense Stand of Purple Nutsedge

Persistent Link:
http://hdl.handle.net/10150/210863
Title:
Response of Cotton to Precision-Guided Cultivation and DSMA in a Dense Stand of Purple Nutsedge
Author:
Thacker, Gary W.; McCloskey, William B.
Affiliation:
UA Cooperative Extension, Pima County, Tucson, Arizona; Department of Plant Sciences, University of Arizona, Tucson, Arizona
Issue Date:
Mar-1996
Publisher:
College of Agriculture, University of Arizona (Tucson, AZ)
Journal:
Cotton: A College of Agriculture Report
Abstract:
Close cultivation (within 1.5 inches of the cotton drill row) accomplished with an electro-hydraulic machine guidance system and an early season application of the herbicide DSMA were evaluated for purple nutsedge suppression in cotton. There were no significant differences in the cotton plant mapping data collected mid - season except that there was significantly less boll retention on the second fruiting branch in the precision cultivator treatments that may have been caused by root pruning during the second precision cultivation that could have shocked the cotton. There were significant differences in seed cotton yield with the precision cultivator treatments yielding more than the standard cultivator treatments. There was an opposing yield trend with the use of DSMA; DSMA tending to be beneficial with the precision cultivator and detrimental with the standard cultivator. We cannot explain this opposing trend. We regard our results as preliminary until we gain more experience with precision-guided cultivators in dense stands of nutsedge.
Keywords:
Agriculture -- Arizona; Cotton -- Arizona; Cotton -- Weed control
Series/Report no.:
Series P-103; 370103

Full metadata record

DC FieldValue Language
dc.titleResponse of Cotton to Precision-Guided Cultivation and DSMA in a Dense Stand of Purple Nutsedgeen_US
dc.contributor.authorThacker, Gary W.en_US
dc.contributor.authorMcCloskey, William B.en_US
dc.contributor.departmentUA Cooperative Extension, Pima County, Tucson, Arizonaen_US
dc.contributor.departmentDepartment of Plant Sciences, University of Arizona, Tucson, Arizonaen_US
dc.date.issued1996-03-
dc.publisherCollege of Agriculture, University of Arizona (Tucson, AZ)en_US
dc.identifier.journalCotton: A College of Agriculture Reporten_US
dc.description.abstractClose cultivation (within 1.5 inches of the cotton drill row) accomplished with an electro-hydraulic machine guidance system and an early season application of the herbicide DSMA were evaluated for purple nutsedge suppression in cotton. There were no significant differences in the cotton plant mapping data collected mid - season except that there was significantly less boll retention on the second fruiting branch in the precision cultivator treatments that may have been caused by root pruning during the second precision cultivation that could have shocked the cotton. There were significant differences in seed cotton yield with the precision cultivator treatments yielding more than the standard cultivator treatments. There was an opposing yield trend with the use of DSMA; DSMA tending to be beneficial with the precision cultivator and detrimental with the standard cultivator. We cannot explain this opposing trend. We regard our results as preliminary until we gain more experience with precision-guided cultivators in dense stands of nutsedge.en_US
dc.subjectAgriculture -- Arizonaen_US
dc.subjectCotton -- Arizonaen_US
dc.subjectCotton -- Weed controlen_US
dc.identifier.urihttp://hdl.handle.net/10150/210863-
dc.relation.ispartofseriesSeries P-103en_US
dc.relation.ispartofseries370103en_US
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