Klippenstein, S.

Schoenau, J.J.

Vandenberg, B.

English

eCommons@USASK

Yield, nitrogen, and phosphorus uptake by four fababean varieties at four sites in Saskatchewan

University of Saskatchewan Research Archive

www.usask.caYield, Nitrogen and Phosphorus Uptake by Four Fababean Varieties at Four Sites in SaskatchewanSerena Klippenstein, Jeff Schoenau, Bert VandenbergWestern Canadian Fababean Acres▪ Crop Insurance Acreage (70-85% of acres grown)⎯ 2014▪ AB – 80,000▪ SK – 20,000▪ MB –⎯ 2015▪ AB – 110,000▪ SK – 62,000▪ MB – 9,000Source: Phelps, S. 2015. Faba Bean Agronomy. SPG Webinar.ObjectiveAssess yield, nutrient uptake by modern fababean varieties under SK conditions⎯ Measure:▪ Grain and straw yield▪ Nutrient (macro&micro) concentration▪ Nutrient uptakeHypothesisDifferent varieties of fababean will differ in their nutrient uptakepotential and response to added fertilizer in different environments.Purpose of Study⎯Improve▪ Fertilizer recommendations▪ Crop nutrition planning⎯Meet nutrient requirementsNutrient Uptake Field Study 2016⎯ 4 Site locations▪ Saskatoon (Dark Brown)▪ Outlook (Dark Brown)▪ Rosthern (Black)▪ Meath Park (Dark Gray)⎯ Experimental Design▪ Split Plot DesignSource: Gov. of Sask. Varieties of Grain Crops 2017. Nutrient Uptake Field Study 20161. 2 fertilizer treatments⎯ No fertilizer⎯ N, P, K, S containing blend▪ K2SO4 (0-0-44-17) @ 100 kg/ha ▪ MAP (11-52-0) @ 100 kg/haNutrient Uptake Field Study 20162. 4 recent fababean varietiesSmaller seeded▪ Snowbird▪ CDC SnowdropLarger seeded▪ CDC 219-16▪ TabascoSpring 2016 Soil FertilitySite NO3-N P K SO4-S pH ECkg ha-1 kg ha-1 kg ha-1 kg ha-1Saskatoon 19 47 868 9 6.4 0.1Outlook 5 32 282 4 7.6 0.1Rosthern 15 30 333 8 6.7 0.1Meath Park 4 54 484 6 6.3 0.1Table 1 Available nutrient concentrations (kg ha-1), pH and EC at          0-15 cm soil depth prior to seeding at four field sites in spring 2016.ResultsFall 2016 Grain Yield0200040006000800010000Saskatoon Outlook Rosthern Meath	ParkAverage	Grain	Yield	(kg/ha)Grain	yield	(kg/ha) of	four	fababean	varieties	averaged	across	four	sites	with	two	treatments	Fertilized Non-FertilizedFall 2016 Grain YieldTotal N Concentration Total P ConcentrationSites Fertilized Non-Fertilized Fertilized Non-Fertilizedg N kg-1 g N kg-1 g P kg-1 g P kg-1Saskatoon 41.3 (1.2) 41.4 (1.4) 5.8 (0.4) 5.5 (0.5)Outlook 39.4 (1.2) 39.1 (1.9) 5.2 (0.4) 5.2 (0.4)Rosthern 40.0 (2.0) 39.9 (1.5) 4.3 (0.4) 4.0 (0.3)Meath Park 38.0 (3.2) 38.5 (3.8) 5.4 (0.3) 5.0 (0.6)Note: Mean concentration (Standard Deviation)Fall 2016 Grain N and P ConcentrationTable 2 Grain total N and P concentration (g kg-1) of fertilized and non-fertilized fababean from four varieties averaged across four sites. Grain and straw total N uptakeGrain and straw total P uptakeConclusions⎯ Modern fababean varieties▪ Very good yield potential (unless too wet) ▪ Limited response to fertilization ▪ Large amounts of N in above ground biomass▪ High P requirement, found largely in grainFuture Work⎯ 2017 field season⎯ P fertilizer response in polyhouse study⎯ Estimate N2 fixation contribution▪ Measure % ndfa using N-15Acknowledgements▪ Supervisor⎯ Jeff J. Schoenau▪ Committee members⎯ Bert Vandenberg⎯ Bing C. Si⎯ J. Diane Knight▪ Team Schoenau▪ CDC - Pulse Crop Breeding Crew▪ FundingThank you!Serena Klippensteinserena.klippenstein@usask.ca

https://harvest.usask.ca/bitstream/10388/8759/1/S.%20Klippenstein%20et%20al.%2c%202017.pdf

Yield, nitrogen, and phosphorus uptake by four fababean varieties at four sites in Saskatchewan

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