Download presentation
Presentation is loading. Please wait.
Published byVivien Wood Modified over 9 years ago
1
Organic Research at the University of Saskatchewan Dr. J. Diane Knight Dept. of Soil Science
2
Organic Industry Needs Assessment (SAF) Barriers to Industry Growth Marketing Production Research & Development
3
Barriers to Industry Growth Lack of an internationally recognized accreditation/certification system Lack of marketing information
4
Organic Trade and Marketing Analyst Dept. of Agricultural Economics
5
Organic Certification/ Accreditation in Canada USDA-National Organic Program (NOP) Organic Marketing and Supply Chain Analysis
6
Production Research & Development
7
Three priority areas identified: Managing soil fertility and quality Crop rotations in relation to soil, weeds, insects, and diseases Managing weeds
8
Variety Development/Assessment
9
Variety Trials: Durum, oats, barley, wheat Identification of crop varieties that are the highest yielding under low input conditions - Heritage varieties - Modern high input varieties - Modern low input varieties Knight & Shirtliffe
10
Flax Evaluation of early flowering flax varieties for organic production - Flax is typically seeded late to enable control of the first weed flush with harrowing - Can result in late maturity, hence, reduced yield and seed quality Rowland et al.
11
Oats Comparison of oat cultivars for competitive- ness with weeds –Forage varieties most competitive, demi-dwarf varieties least competitive Shirtliffe
12
Weed Control
13
Bacterial Controls Development of bacterial control agents for control of wild oats and green foxtail –Native bacteria isolated from Saskatchewan soils –Lines identified that display moderate control –Development of carrier system for applying inoculants to soils Boyetchco, AAFC
14
Mechanical Weed Control Mowing barley at 2 to 3 leaf stage for in- crop control – faster recovey of barley than weeds Deep seeding of peas for protection against post-seeding harrowing Comparison of harrowing implements – small plot scale and field scale (Frick) Johnson, AAFC Frick, OACC
15
Spray Technology Vinegar and Pine oil as organic herbicides First indications are it is not economically nor technically feasible for most producers Wolf, AAFC
16
Soil Fertility
17
Soil Survey of Organic Fields -76 fields soil sampled and analysed for macronutrients and various soil chemical and physical characteristics -Overall, soils were: -moderately to severely deficient in P, -slightly deficient in N, -optimum for K and S (some localized S deficiency) Knight
18
Green Manuring (Plough Downs) Evaluation of a variety of green manure crops for supplying Nitrogen and Phosphorous, and for competitiveness with weeds Investigation of optimal seeding rates for legume green manure crops for weed control and Nitrogen supply Knight & Shirtiffe
19
Organic Fertilizers/Ammendments Examining ways of improving P fertility –Composted livestock manures –Fungal inoculants for solubilizing P –Green manures Knight
20
Cropping systems Long-term crop rotation study comparing: –High input – low diversity –High input – high diversity –Low input – low diversity (organic) –Low input – high diversity (organic) So far weeds are still manageable, organic high diversity system – among most economically viable Brandt, AAFC
21
Summary Addressing issues identified by organic producers as important Cooperation between organic producers, U. of S. researchers, provincial and federal research institutes
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.