Oakes Irrigation Research Site
Carrington Research Extension Center * North Dakota State University
P.O. Box 531, Oakes, ND 58474-0531, Phone: (701) 742-2744, FAX: (701) 742-2700, E-mail: Walter.Albus@ndsu.edu

The Response of Three Potato Cultivars to Nitrogen Rate

Figure 1. Petiole nitrate-N vs critical values for Russet Burbank, Bannock Russet and Dakota Trail Blazer potatoes at the Oakes Irrigation Research Site in 2010.

Material and Methods Tables Results Report 2010 Home page

Figure 2. The relationship among chlorophyll meter reading, canopy vegetation index(NDRE) and petiole nitrate-N on August 11, 2010 at the

Oakes Irrigation Research Site.

Material and Methods Tables Results Report 2010 Home page

Strip-Till, Corn on Corn, Nitrogen Rate Study

Figure 1. Acres planted to corn and total bushels harvested from 1997-2010 in North Dakota.

Material and methods Table Report 2010 Home page

Figure 2. Relationship among chlorophyll meter readings, NDRE, red band reflectance

and N Rate at the Oakes Irrigation Research Site in 2010.

Material and Methods Table Report 2010 Home page

Optimum Corn Stover Removal for Biofuels and the Environment

Figure 1. Amount of corn grain used for ethanol production in the USA from 2006-2010.

Material and Methods Results Report 2010 Home page

Figure 2. Stover removal in tons of DM per acre in continuous corn at the Oakes

Irrigation Research site from 2008-2010.

Material and Methods Table 2010 Results Report 2010 Home page

Figure 3. Stover removal in tons of DM per acre in a corn on soybean cropping

system at the Oakes Irrigation Research site from 2008-2010.

Material and Methods Table 2010 Results Report 2010 Home page

Figure 4. Yield vs corn stover removal in continuous corn at the Oakes

Irrigation Research site from 2008-2010.

Material and Methods Table 2010 Results Report 2010 Home page

Figure 5. Amount of nutrients removed at three removal rates and nutrient              Figure 6. Amount of nutrients removed at three removal rates and nutrient

value in continuous corn at the Oakes Irrigation Research site in 2008. value in a corn soybean rotation at the Oakes Irrigation Research site in 2008.

Material and Methods Results Report 2010 Home page

Figure 7. Amount of nutrients removed at three removal rates and nutrient Figure 8. Amount of nutrients removed at three removal rates and nutrient

value in continuous corn at the Oakes Irrigation Research site in 2009.                  value in a corn soybean rotation at the Oakes Irrigation Research site in 2009.

Material and Methods Results Report 2010 Home page

FARM EXTENSION ACTIVITIES

Figure 1. The yield for irrigated continuous corn for ten site years Figure 2. The return to fertilizer N for irrigated continuous corn for ten site

(Oakes data set) at N fertilizer rates. years (Oakes data set).

Material and Methods Focus of 2010 and future research activities Report 2010 Home page

Figure 3. Yield and return to N fertilizer for N rate means from 2006 to 2009

in irrigated corn on corn in twelve farm fields at Oakes, ND.

Material and Methods Focus of 2010 and future research activities Report 2010 Home page

Figure 4. Chlorophyll meter readings, grain protein percent and basal stalk Figure 5. Residual soil nitrate-N for 0-2 or 0-3 feet depths for twelve farm

nitrate-N from 2006 to 2009 in irrigated corn on corn in twelve farm fields fields from 2006 to 2009 and research plots (10 site years) from 1979-84,

at Oakes, ND. 1991 and 1994-95.

Material and Methods Focus of 2010 and future research activities Report 2010 Home page

Figure 6. The yield range at N rates for continuous irrigated corn for nine Figure 7. Nitrogen effeciency in lb/bu for continuous irrigated corn

years at Oakes. for nine years at Oakes.

Material and Methods Focus of 2010 and future research activities Report 2010 Home page

R²=0.80

Figure 8. Field harvested corn yield versus N rate in field 1 at Figure 9. Return to N versus N rate in field 1 at Oakes, ND, in 2010.

Oakes, ND in 2010.

Material and Methods Focus of 2010 and future research activities Report 2010 Home page

Figure 10. Basal stalk nitrate-N versus N rate in field 1 at Figure 11. The relationship between yield and NDRE in field 1 at

Oakes, ND, in 2010. Oakes, ND, in 2010.

Material and Methods Focus of 2010 and future research activities Report 2010 Home page

Figure 12. The percent of red edge, near infrared (NIR), normalized

difference red edge (NDRE) and normalized difference vegetative index

(NDVI) compared in field 1 at Oakes, ND, in 2010.