Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 3 of 3
Full-Text Articles in Life Sciences
Effects Of Combinations Of Cropping Sequences And Biocovers On Yield Of Glyphosate-Tolerant Corn, Soybean, And Cotton Under No-Till, Jennifer Elizabeth Noe
Effects Of Combinations Of Cropping Sequences And Biocovers On Yield Of Glyphosate-Tolerant Corn, Soybean, And Cotton Under No-Till, Jennifer Elizabeth Noe
Masters Theses
No-till acreage is increasing in the United States as producers begin to recognize the environmental and economic benefits of this management system. Although the potential to receive carbon credits or payments for maintaining or initiating no-till may encourage producers to employ these practices, crop yields will be a factor in management decisions. Our objective was to examine the effects of combinations of cropping sequences and winter biocovers upon glyphosate-tolerant corn, cotton, and soybean yields under long-term no-tillage at two locations in Tennessee. Research was conducted during the first four-year phase (2002-2005) of a two-phase agronomic systems study (2002-2009) at the …
Ground Cover Management For Conservation Tillage Burley Tobacco, Justin Lee Bryant
Ground Cover Management For Conservation Tillage Burley Tobacco, Justin Lee Bryant
Masters Theses
There are several advantages of using conservation tillage management practices for burley tobacco production. These include reduced soil erosion, soil water conservation, and lower input costs. Inconsistent yields in past research and trials have made tobacco producers hesitant in adopting conservation tillage. This research was conducted near Springfield, Tennessee and Greeneville, Tennessee to investigate no-till and strip-till practices with different ground cover management techniques during winter and spring months in an effort to identify appropriate technologies. The first study evaluated cover management in established sod. Conventional tillage tobacco was compared to tobacco transplanted either no-till or strip-till into the following …
Rate And Timing Of Nitrogen Fertilizer In Burley Tobacco, Michael Randall Waynick
Rate And Timing Of Nitrogen Fertilizer In Burley Tobacco, Michael Randall Waynick
Masters Theses
Our objectives in this study were to evaluate the state recommendations for nitrogen, determine the effects of nitrogen on tobacco specific nitrosamines (TSNA), yield and quality, determine efficient nitrogen rates and evaluate the pre sidedress nitrate test (PSNT) as an indicator of nitrogen needs in burley tobacco. This study had nine nitrogen rates, in a split plot design with four replications. Main plots consisted of preplant nitrogen: 89.6, 179.2 and 268.8 kg/ha. Sub plots consisted of sidedress nitrogen: 0, 52 and 112 kg/ha. Soil nitrate-N was determined using the PSNT, with samples taken to a depth of 0.15 m three …