Views
5 years ago

Blacksburg, Virginia - Virginia Tech

Blacksburg, Virginia - Virginia Tech

Total Yield (kg DM ha -1

Total Yield (kg DM ha -1 ) Harvest 1 of 2010 did show an N rate x N source interaction and therefore interaction effects will be presented for harvest 1. Yields for harvest 1 - broiler litter increased quadratically with an increasing N rate (p < 0.05) (Figure 3-6-A). Ammonium nitrate, however, did not show B. significance (p = 0.7654) with an increasing N rate and therefore means were plotted but not regressed (Figure 3-6-A). Harvest 1 in 2010 showed biomass yields ranging from 600 to 3550 kg DM ha -1 . The only significance in N rate (p < 0.05) shown in harvest 1 is between the 0 and Total Yield (kg DM ha -1 ) 8000 6000 4000 2000 0 8000 6000 135 kg N ha -1 rates. Harvest 2 of 2010 did not have an N rate x N source interaction and therefore main effects are presented. Biomass yield did not show a significant N rate response (p 4000 = .0510) and thus means were plotted (3-6-B). Yields did not show significance between N 2000 sources in harvest 2 of 2010 (Figure 3-6-C). No significance was shown between N rates (p > 0.05) 2010 harvest 2 yields ranged from 400 to 4050 kg DM ha -1. 0 A. y = 3064.12 + 28.51x - 0.15x 2 r 2 = 0.3761 p = 0.0011 0 20 40 60 80 100 120 140 a Nitrogen Rate (kg N ha -1 ) Broiler Litter Ammonium Nitrate Nitrogen Source Figure 3-5. Seasonal accumulation of biomass yield as impacted by N rate averaged over N source (A) and N source averaged over N rate (B), Kentland, 2009 33 a

Total Yield (kg DM ha -1 ) Total Yield (kg DM ha -1 ) 8000 6000 4000 2000 0 8000 6000 4000 2000 0 A. y = 3787.75 + 9.79x r 2 = 0.1821 p = 0.0149 0 20 40 60 80 100 120 140 a Nitrogen Rate (kg N ha -1 ) B. Broiler Litter Ammonium Nitrate Nitrogen Source Figure 3-6. Seasonal accumulation of biomass yield as impacted by N rate averaged over N source (A) and N source averaged over N rate (B), Kentland 2010. 34 a

Articles - Digital Library and Archives - Virginia Tech
The ALAN Review - Digital Library and Archives - Virginia Tech
guidelines for - Digital Library and Archives - Virginia Tech
Computer Science @ Virginia Tech - Computer Science at Virginia ...
Adventures in Entrepreneurship - IEEE - Virginia Tech
University Facts & Figures - Virginia Tech
Volume 2, Issue 3 - Institute for Policy and Governance - Virginia Tech
1984 - Special Collections - Virginia Tech
The Land-Grant Tradition - Virginia Tech
Computer Science @ Virginia Tech - Research
Download a PDF - Virginia Tech News
New Faculty - ACIS | Pamplin - Virginia Tech
Faculty Expertise Guide - College of Engineering - Virginia Tech
Research Articles - VTechWorks - Virginia Tech
PDF (3 MB) - Virginia Cooperative Extension - Virginia Tech
Brochure - Macromolecules and Interfaces Institute - Virginia Tech
PDF (1 MB) - Virginia Cooperative Extension - Virginia Tech
September 1, 2011 - Northern Virginia Center - Virginia Tech
A-twisted Landau-Ginzburg models - Physics - Virginia Tech
An Introduction to Heterotic Mirror Symmetry - Physics - Virginia Tech
Moduli of heterotic string compactifications - Physics - Virginia Tech