DRYLAND AND IRRIGATED OILSEED CROPPING SYSTEMSPI: Bill Schillinger, WSUCollaborating Scientists: Jeremy Hansen, WSU; Tim Paulitz, USDA-ARS; Brenton Sharratt, USDA-ARS; Stewart Wuest, USDA-ARS; John Jacobsen, WSU; and Steve Schofstoll, WSU

Farmer Collaborators: Jeff Schibel, Odessa; Ron Jirava, Ritzville; Hal Johnson, Davenport; Derek Schafer, Ritzville

Direct seeding winter canola into heavy irrigated winter wheat stubble instead of burning and disking at Jeff Schibel farm near Odessa.

Safflower at Ritzville in 2015

New 3-year winter canola rotation added in 2015 at long-term cropping systems trial at Ritzville. Winter canola spring wheat undercut tillage fallow.

New cropping systems study initiated at Ritzville in 2014WC NTF WT NTFWP NTF WT NTFWW - UTF

Winter canola planting date experiment at Ritzville

Camelina cropping systems experiment at Lind. WW C SF versus WW SF. Now in seventh year.

Soil water content at the beginning (after harvest), early spring, and the end of fallow (just before planting of winter wheat) and associated gain or loss of water and precipitation storage efficiency (PSE = gain in soil water/precipitation that occurred during the fallow period) in the 6-foot soil profile in summer fallow in a 2-year winter wheat-fallow rotation versus a 3-year winter wheat-camelina-fallow rotation. Data are a 6-year average.

_________________________ Timing in fallow period _______________________

Beginning (late Aug.)

Spring(mid Mar.)

Over-wintergain

End(late Aug.)

Mar. to Aug. water

PSE(%)

________________________ Soil water content (inches) _____________________

Fallow treatment After winter wheat (2-yr rotation)

6.3 9.8 3.5 9.2 - 0.6 31

After camelina (3-yr rotation)

6.0 9.7 3.7 8.6 -1.1 27

p-value 0.04 ns ns

Non-toxic seed treatments to deter horned lark feeding of pre-emerged winter canola seedlings. New study at Lind in 2016.

WSU Fact Sheet on horned lark coming soon. New study on canola seed treatment in 2016 at Lind in collaboration with Dr.

Scott Werner, USDA-APHIS ornithologist.

Stripper header: Residue height on water conservation

Current PublicationsReferred Journal Articles Long, D., F. Young, W. Schillinger, C. Reardon, J. Williams, B. Allen,

W. Pan, and D. Wysocki. 2016. Ongoing development of dryland oilseed production systems in the northwestern region of the United States. BioEnergy Research (in press).

Sharratt, B., and W.F. Schillinger. 2016. Soil characteristics and associated wind erosion potential altered by oilseeds in a wheat-fallow cropping systems. Soil Science Society of America Journal (in press).

Schillinger, W.F., and S.J. Werner. First report of horned lark damage to pre-emerged canola seedlings. Industrial Crops and Products (to be submitted next week).

WSU Fact Sheet Schillinger, W.F., and S.J. Werner. Advanced Preparation. First Report

of Horned Lark Damage to Pre-emerged Canola Seedlings.

SOIL MICROBIAL COMMUNITY CHANGES WITH INCLUSION OF

OILSEED CROPS INTO CEREAL GRAIN ROTATIONS

Jeremy C. HansenWilliam F. Schillinger, Ann C. Kennedy, Tarah S. Sullivan

USDA-ARS, Washington State University

PhD Dissertation Research

Soil and rhizosphere microbial communities in agroecosystems may be affected by soil type, climate, plant species, and management.

The plant species (oilseed crops) and management (rotation) factors will be investigated with four field scale experiments.

Overall Objective

Canola (Davenport, WA) Camelina (Lind, WA) Safflower (Ritzville, WA) Rhizosphere (Ritzville and Mansfield, WA)

Field Scale Studies

-Glucosidase Activity Canola study (Davenport)

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-Glucosidase Activity 0 to 5 cm

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Mycorrhizal Biomarkers Canola study (Davenport)

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Dryland and Irrigated Oilseed Cropping SystemsSlide Number 2Slide Number 3Safflower at Ritzville in 2015New 3-year winter canola rotation added in 2015 at long-term cropping systems trial at Ritzville. Winter canola spring wheat undercut tillage fallow. New cropping systems study initiated at Ritzville in 2014 WC NTF WT NTF WP NTF WT NTF WW - UTFWinter canola planting date experiment at RitzvilleCamelina cropping systems experiment at Lind. WW C SF versus WW SF. Now in seventh year.Slide Number 9Non-toxic seed treatments to deter horned lark feeding of pre-emerged winter canola seedlings. New study at Lind in 2016.Stripper header: Residue height on water conservation Current PublicationsSoil Microbial community changes with inclusion of Oilseed Crops into Cereal Grain RotationsOverall ObjectiveSlide Number 15-Glucosidase Activity Canola study (Davenport)Mycorrhizal Biomarkers Canola study (Davenport)