WSU Wilke Research and Extension Farm Operation, Production, and Economic Performance for 2013

WSU Wilke Research and Extension Farm Operation, Production, and Economic Performance for 2013

Aaron Esser, WSU Lincoln-Adams Area Extension, Derek Appel, WSU Lincoln-Adams Area Extension
The Washington State Oilseed Cropping Systems Research and Extension Project (WOCS) is funded by the Washington State Legislature to meet expanding biofuel, food, and feed demands with diversified rotations in wheat based cropping systems. The WOCS fact sheet series provides practical oilseed production information based on research findings in eastern Washington. More information can be found at: http://css.wsu.edu/biofuels/.
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Current Situation

The WSU Wilke Research and Extension Farm is a 320-acre facility located on the eastern edge of Davenport, Washington, and is split (north and south) by State Hwy 2. Washington State University maintains and operates this facility. This technical bulletin is an annual document designed for farmers and crop consultants in the intermediate cropping zone (12 to 17 inches of annual precipitation). It is also provides documentation of the operations and production on the Wilke Farm to assist university faculty with small-plot research experiments.

The Wilke Farm remains in a direct seed cropping system utilizing no-till fallow, winter wheat, and spring cereals. Broadleaf crops remain a viable option and are substituted for spring and winter cereals when weed pressures and market prices create opportunities for profitable production. The predominant cropping system practiced by farmers in this region is a 3-year rotation that includes summer fallow, winter wheat, and spring cereals. Farmers are interested in intensifying rotations to reduce fallow years and increasing crop diversity to improve long-term agronomic and economic stability.

The south side of the farm is divided into seven plots with three plots in a more traditional 3-year crop rotation, and four plots in an intensified 4-year crop rotation. The north side of the farm remains in an intensified rotation that forgoes summer fallow, and is in a continuous cereal grain production. In 2010 through 2013, cereal rye (feral rye) infestations caused cropping decisions to be altered (changes are noted in red italic type in the data tables) on the Wilke Farm, especially in the no-till fallow winter wheat portion of the rotations. In the fall of 2013, the no-till fallow winter wheat portion of the rotation was seeded as planned according to the rotation without alteration because of cereal rye.

Soil compaction and wireworm population data are collected each spring from GPS recorded locations within each plot. Soil samples are also collected from these GPS locations prior to seeding each plot, and fertilizer is applied according to soil sample results and WSU recommendations.

Operation

Winter wheat was seeded by Crop Production Service’s Case IH direct-seed hoe drill with Anderson openers on 12-inch spacing. The spring crops were seeded with Kevin Klein’s SeedMaster direct-seed hoe drill on 12-inch spacing. The farm was harvested with the farm’s John Deere 6622 combine on August 16 through 27.

Winter Wheat (3-year Plot 7; 4-year Plot 1)

‘Xerpha’ soft white winter wheat was seeded into Plot 7 on September 7, 2012 at 70 lb/ac into no-till fallow. It was treated with 0.33oz/cwt CruiserMaxx® Cereals plus Vibrance. Anhydrous ammonium was applied below the seed at 70 lb N/ac. Liquid ammonium Thio-Sul®, 12-0-0-26, ammonium polyphosphate, 10-34-0-0, and Power Up®, 6-18-6-1 were applied at a rate of 6-9-1-8 with the seed. Post-emergence weed control and fungicide application were applied on April 24, 2013. This application included 3.5 oz/ac PowerFlex®, 16.0 oz/ac Truslate™, 10.0 oz/ac Brox®-M, 4.0 oz/ac Tilt®, 10.0 oz/ac T-Methyl, and 1.25 lb/ac spray grade fertilizer. Post-harvest weed control was applied on October 4, and this application was 12.0 oz/ac Alecto 41S (glyphosate) and 1.0 qt/100 gal M-90.

Spring Wheat (3-year Plot 2; 4-year Plot 6)

‘Diva’ soft white spring wheat was seeded into Plot 1 instead of winter wheat for cereal rye management. It was seeded into spring canola residue on April 15, 2013, at 70 lb/ac. It was treated with 0.33oz/cwt CruiserMaxx® Cereals and 1.0 oz/cwt Nipsit Inside. Anhydrous ammonium was applied below the seed at 51 lb N/ac, and liquid ammonium thiosulfate, 11-37 and NACHURS® were applied at a rate of 7-12-1-9 with the seed.

Prior to seeding spring wheat on April 14, 32.0 oz/ac RT3™, 16 oz/ac 2,4-D, 1.5 qt/100 gal Alliance, and 1.0 qt/100 gal Activate were applied. Post emergence weed control was applied on June 3. This application included 16.4 oz/ac Axial® XL, 17.0 oz/ac Orion™, 6.0 oz/ac Bison, and 4.0 oz/ac Tilt® fungicide for stripe rust control.

‘Glee’ Dark Northern Spring (DNS) wheat was seeded into winter wheat residue on April 16 at 70 lb/ac. It was treated with 0.66 oz/cwt CruiserMaxx Cereals. Anhydrous ammonium was applied below the seed at 91 lb N/ac. Both plots also had liquid ammonium thiosulfate, 11-37 and NACHURS applied at a rate of 9-15-1-9 with the seed.

Prior to seeding on April 14, 32.0 oz/ac RT3, 1.5 qt/100 gal Alliance, and 1.0 qt/100 gal Activate were applied. Post emergence weed control/fungicide was applied on June 3. This application included 16.4 oz/ac Axial XL, 17.0 oz/ac Orion, 6.0 oz/ac Bison, and 4.0 oz/ac Tilt for stripe rust control.

Spring Barley (Continuous; North)

‘Lenetah’ spring barley was seeded and fertilized in one pass on April 15 into spring wheat residue. The crop was seeded 70 lb/ac and it was treated with 1.33 oz/cwt CruiserMaxx Cereals plus 1.0 oz/cwt Nipsit Inside.

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Copyright 2015 Washington State University

Published September, 2015

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