939820sare fig 4 megan w CC
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lbs/ac Fixed N Soil N Total N Vetch 89 10 99 Rye 61 61 Total 89 72 160 Figure 4. Example of a cover crop mixture with good weed suppression and good nitrogen fixation. Vetch/rye cover crop was planted on 8/16/08 , sampled on 5/24/09. This stand was about 3-1/2 feet tall , with vetch shoots growing up most of the rye stems. Total nitrogen in the cover crop was 160 lbs nitrogen/acre with 89 lbs coming from nitrogen fixation. Seeding rates: rye 80lbs/acre, vetch 50-60lbs/acre. Megan Gregory, shown, is a graduate student in the Drinkwater lab.
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lbs/ac Fixed N Soil N Total N
Vetch 89 10 99
Rye 61 61
Total 89 72 160
Figure 4. Example of a cover crop mixture with good weed suppression and good nitrogen fixation. Vetch/rye cover crop was planted on 8/16/08 , sampled on 5/24/09. This stand was about 3-1/2 feet tall , with vetch shoots growing up most of the rye stems. Total nitrogen in the cover crop was 160 lbs nitrogen/acre with 89 lbs coming from nitrogen fixation. Seeding rates: rye 80lbs/acre, vetch 50-60lbs/acre. Megan Gregory, shown, is a graduate student in the Drinkwater lab.
