Winter Canola Farm Tour

Transcription

1 Winter Canola Farm Tour Winter Canola Variety Trials ( ) Twelve winter canola varieties were planted at Bridgeport, Ralston, Pomeroy, and Pullman. Varieties included: 1) Four from the University of Idaho (Athena, Amanda, WC1, and ); 2) Two from CROPLAN (HyClass 115 and 125): 3) Three varieties from Spectrum Crop Development (Largo, Falstaff, and Casino); and 4) Three varieties from Kansas State University (Sumner, Claremore, and Griffin). CROPLAN varieties are resistant to glyphosate and tolerant to sulfonylureas, while the U of I and Spectrum varieties are conventional varieties. Largo and Griffin are varieties with presumably winter hardiness traits. Sumner is tolerant to sulfonylurea herbicides and Claremore is tolerant to imidazolinone herbicides. At Pullman, planting was very late because of the dry fall, plants had only 1 to 2 true leaves, and winter survival was 0%. At Bridgeport harvest data was not collected because of aphids, cabbage seed pod weevil, and deer grazing. Winter survival at Bridgeport (fall and spring plant counts) ranged from 47% (U of I ) to 87% (Largo) (Table 1). At Pomeroy (Table 1), winter canola yield ranged from 2070 to 3020 lbs/a (Table 1). Sumner and Amanda varieties yielded highest at 3020 lbs/a followed by Falstaff at 2925 lbs/a. The lowest yield was with Largo at 2070 lbs/a. Largo is a rapa and the other varieties are napus. Winter survival ranged from 62 to 77% (Table 1). Winter canola yield at Ralston ranged from 1490 lbs/a (Largo) to >3000 (Amanda, Falstaff, and Griffin) (Table 1). Winter survival ranged from 77 to 99% with six varieties having winter survival 90%. One reason yield of Largo was low was because rapa varieties need to be pollenated (personal communication, Jack Brown). Table 1: Yield and winter survival of winter canola in WA in Pomeroy Ralston Bridgeport Variety Yield (lbs/a) Survival (%) Yield (lbs/a) Survival (%) Survival (%) UI WC UI Amanda Athena CP CP Claremore Sumner Griffin Falstaff Casino Largo

2 Winter Canola Variety Trials ( ) Fourteen winter canola varieties were planted at Pomeroy August 8. Varieties included 11 of the 12 planted the previous year (Athena was excluded), and three new varieties were added: Edimax and Safran from Rubisco/DL Seeds, and DKW from Monsanto. Edimax is a Clearfield technology variety; DKW is Roundup Ready technology. Winter survival of each variety was recorded and establishment was rated approximately 45 after planting (Table 2). Pomeroy Variety Establishment Rating Survival (%) Amanda 4 73 Casino Claremore CP CP DKW Edimax 5 67 Falstaff 4 88 Griffin Largo Safran Sumner UI UI WC Rating: 1 Poor 2 Fair 3 Good 4 Very Good 5 Excellent

3 Field-Applied Biosolids Carbon Fractionation of Biosolids Amended Soils - Impact on carbon and nitrogen storage in soils Lauren Young, Yaoyi Xiao, Craig Cogger, William Pan Anaerobically digested and dewatered biosolids can be an effective source of nutrients in a cropping system. The GP-17 project, directed by Craig Cogger, is located near Waterville, WA. They have been applying biosolids as a nutrient source on winter wheat-fallow every four years since Carbon fraction analysis funded by USDA AFRI REACCH have recently been applied to historical soil samples from this site, and show that acid resistant, light fraction, and heavy soluble carbon pools in the soil increase with applications of biosolids. The trend is for soil C levels to increase as C is added; about 20% of the added carbon is stored in the acid resistant fraction, 14% in light fraction, and 36% in the intermediate heavy soluble fraction. Due to augmentation of these three C fractions, total soil C increases by around 70% of what is applied. This research demonstrates biosolids applied to wheat increases stable C sequestration above and beyond what wheat straw returns. When all crop years are averaged, nitrogen applied as biosolids at the medium (3 dry tons/ac) and high (4.5 dt/ac) rates led to significantly higher grain yield (53 bu/ac) than nitrogen applied as anhydrous ammonia (46 bu/ac).

4 Washington State Biofuels Cropping Systems News Save the date, annual conference January 20-22, 2015 Don't miss out on being a part of this premier sustainable ag conference, including topics on improving soil productivity and health, benefits and how to implement diverse crop rotations and cover crops, latest precision ag technologies, and improving your operation's bottom line. Growers Case Studies Interested in learning more from your neighbors? The case study for Oilseed production in Eastern Washington s low-to-intermediate rainfall zone. Scan the QR code to go straight to the publication. This and many other publications are available at the WBCS website, css.wsu.edu/biofuels. Washington Oilseeds Commission New commissioners start June 1, 2014 Effective June 1, acting commissioners will be Chris Lyle (Ritzville), Terry Morgan (Rosalia), Dale Teade (Colfax), Steve Starr (Warden), Jeff Schibel (Odessa), and Mike Stubbs (Dusty). Outgoing commissioners are Mark Klein (Edwall) and Hal Meenach (Valleyford). The Washington Oilseeds Commission is funded by a 10 cents per hundredweights assessment on canola, rapeseed, or mustard grown in Washington. The USDA-ARS/WSU winter canola variety trials in were supported by commission funds. Board meetings are held four times a year March, April, June and November in 2014, with an annual meeting in January. Growers and interested parties are invited to participate in all meetings.

5 Herbicide efficacy study in winter canola Exciting results in the season This study is being conducted in a grower s field naturally infested with feral rye (Figure 1A). Average rye density in October was 340 plants/yd 2. Winter canola was planted in early September 2013, and a fall application of Roundup was applied in October. Excellent control was obtained with the fall herbicide application (Figure 1B). 1A 1B