Effect of Plant Nitrogen Status on Effectiveness of Pix and Defoliants for Short-Season Cotton Production
| dc.contributor.author | Nelson, J. M. | |
| dc.contributor.author | Briggs, R. E. | |
| dc.contributor.author | Hart, G. | |
| dc.contributor.editor | Silvertooth, Jeff | en_US |
| dc.contributor.editor | Bantlin, Marguerite | en_US |
| dc.date.accessioned | 2012-02-01T20:23:43Z | |
| dc.date.available | 2012-02-01T20:23:43Z | |
| dc.date.issued | 1990 | |
| dc.identifier.uri | http://hdl.handle.net/10150/208258 | |
| dc.description.abstract | A field study was conducted at the Maricopa Agricultural Center to determine the effect of nitrogen fertility level on the effectiveness of PIX and defoliants for short- season - cotton production. Increasing the nitrogen fertility level from 90 lbs N/A to 240 lbs N/A increased lint yields from 2.23 to 3.14 bales/A, respectively, in a 157-day growing season. FIX treatments did not promote earliness, and resulted in yield reductions. Increasing the application rates of Dropp from 0.1 to 0.2 lbs a.i./A and Def-6 from 0.75 to 1.13 lbs a.i./A resulted in increases in leaf drop. There was a significant linear decrease in the effectiveness of defoliants as the petiole NO3 N content increased from 850 to 2450 ppm. | |
| dc.language.iso | en_US | en_US |
| dc.publisher | College of Agriculture, University of Arizona (Tucson, AZ) | en_US |
| dc.relation.ispartofseries | 370081 | en_US |
| dc.relation.ispartofseries | Series P-81 | en_US |
| dc.subject | Agriculture -- Arizona | en_US |
| dc.subject | Cotton -- Arizona | en_US |
| dc.subject | Cotton -- Crop management | en_US |
| dc.title | Effect of Plant Nitrogen Status on Effectiveness of Pix and Defoliants for Short-Season Cotton Production | en_US |
| dc.type | text | en_US |
| dc.type | Article | en_US |
| dc.identifier.journal | Cotton: A College of Agriculture Report | en_US |
| refterms.dateFOA | 2018-06-06T08:11:45Z | |
| html.description.abstract | A field study was conducted at the Maricopa Agricultural Center to determine the effect of nitrogen fertility level on the effectiveness of PIX and defoliants for short- season - cotton production. Increasing the nitrogen fertility level from 90 lbs N/A to 240 lbs N/A increased lint yields from 2.23 to 3.14 bales/A, respectively, in a 157-day growing season. FIX treatments did not promote earliness, and resulted in yield reductions. Increasing the application rates of Dropp from 0.1 to 0.2 lbs a.i./A and Def-6 from 0.75 to 1.13 lbs a.i./A resulted in increases in leaf drop. There was a significant linear decrease in the effectiveness of defoliants as the petiole NO3 N content increased from 850 to 2450 ppm. |
