logging in or signing up comparisonofAlfalfaN credits Noemie Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 67 Category: News & Reports.. License: All Rights Reserved Like it (0) Dislike it (0) Added: October 04, 2007 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Direct Comparison of Alfalfa Nitrogen Credits to Corn and Wheat: Direct Comparison of Alfalfa Nitrogen Credits to Corn and Wheat K.A. Kelling, P.E. Speth, K. Kilian, T. Wood and M. Mlynarek Soil Science, UW-Madison School of Ag, UW-Platteville Lancaster Ag Research Station Ashland Ag Research StationAlfalfa N credits to corn:: Alfalfa N credits to corn: Infrequent fertilizer N responses sands poor stands top growth removed cold, wet spring Credit ranges from 40-190 lb N/a; typical credit 90-110 lb N/a Little tillage or time of death effectAlfalfa N credits to wheat:: Alfalfa N credits to wheat: Credit 40-80 lb N/a Excess N resulted in lodging No benefit to killing alfalfa earlier Wheat tillage affects response No-till may be “safer” systemEffect of alfalfa killdate, tillage and N rate on wheat yields: Effect of alfalfa killdate, tillage and N rate on wheat yieldsEffect of alfalfa killdate, tillage, and N rate on wheat lodging: Effect of alfalfa killdate, tillage, and N rate on wheat lodgingNote:: Note: Arlington results similar Results similar to previous years 2000-2001 was “normal” year Oct. - Dec. temps - 2.1o F Arlington - 3.1o F LancasterEffect of alfalfa killdate and N ratio on wheat yield: Effect of alfalfa killdate and N ratio on wheat yieldEffect of alfalfa killdate, tillage and N rate on corn grain yields: Effect of alfalfa killdate, tillage and N rate on corn grain yieldsEffect of alfalfa killdate, tillage and N rate on corn grain yields: Effect of alfalfa killdate, tillage and N rate on corn grain yieldsConclusions:: Conclusions: Wheat following alfalfa generally responds negatively to N Still got negative response in “normal” years Cold environments may need some fertilizer N Tillage system and alfalfa killdate affect amount of N available to wheat Conclusions:: Conclusions: 5. Corn responded positively to some N in 2001 6. Tillage and killdate less important to corn 7. No corn response above 40-60 lb N/a You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
comparisonofAlfalfaN credits Noemie Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 67 Category: News & Reports.. License: All Rights Reserved Like it (0) Dislike it (0) Added: October 04, 2007 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Direct Comparison of Alfalfa Nitrogen Credits to Corn and Wheat: Direct Comparison of Alfalfa Nitrogen Credits to Corn and Wheat K.A. Kelling, P.E. Speth, K. Kilian, T. Wood and M. Mlynarek Soil Science, UW-Madison School of Ag, UW-Platteville Lancaster Ag Research Station Ashland Ag Research StationAlfalfa N credits to corn:: Alfalfa N credits to corn: Infrequent fertilizer N responses sands poor stands top growth removed cold, wet spring Credit ranges from 40-190 lb N/a; typical credit 90-110 lb N/a Little tillage or time of death effectAlfalfa N credits to wheat:: Alfalfa N credits to wheat: Credit 40-80 lb N/a Excess N resulted in lodging No benefit to killing alfalfa earlier Wheat tillage affects response No-till may be “safer” systemEffect of alfalfa killdate, tillage and N rate on wheat yields: Effect of alfalfa killdate, tillage and N rate on wheat yieldsEffect of alfalfa killdate, tillage, and N rate on wheat lodging: Effect of alfalfa killdate, tillage, and N rate on wheat lodgingNote:: Note: Arlington results similar Results similar to previous years 2000-2001 was “normal” year Oct. - Dec. temps - 2.1o F Arlington - 3.1o F LancasterEffect of alfalfa killdate and N ratio on wheat yield: Effect of alfalfa killdate and N ratio on wheat yieldEffect of alfalfa killdate, tillage and N rate on corn grain yields: Effect of alfalfa killdate, tillage and N rate on corn grain yieldsEffect of alfalfa killdate, tillage and N rate on corn grain yields: Effect of alfalfa killdate, tillage and N rate on corn grain yieldsConclusions:: Conclusions: Wheat following alfalfa generally responds negatively to N Still got negative response in “normal” years Cold environments may need some fertilizer N Tillage system and alfalfa killdate affect amount of N available to wheat Conclusions:: Conclusions: 5. Corn responded positively to some N in 2001 6. Tillage and killdate less important to corn 7. No corn response above 40-60 lb N/a