soybean agronomy

45 Pages·2017·3.92 MB·English

by  Wendy Yallowega

SOYBEAN AGRONOMY
Glenda Clezy, P.Ag – Agronomy Specialist
CANADIAN SOYBEAN ACRES
Significant growth since 2000
• Seeded acres have more than Seeded Acres
doubled 6,000,000
5,000,000
Driven by:
4,000,000
• Large increases in Western
3,000,000
Canada, 3000% increase in
2,000,000
Manitoba
1,000,000
-
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6
0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
Canada Quebec Ontario
Manitoba Saskatchewan
Source: Statistics Canada
2
YIELD
50 Yield increases have been
45
variable but definite upward trend
40
35
Between 2005 and 2015
30
c
a
/ 25 • Canada up 7%, avg .25 bu/ac/yr
u
b
20
• Ontario up 14%, avg .52 bu/ac/yr
15
10
• Quebec up 17%, avg .62 bu/ac/yr
5
0
• Manitoba up 71%, avg 1.4 bu/ac/yr
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6
0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
Canada Quebec Ontario
Manitoba Saskatchewan
Source: Statistics Canada
3
40 – 3,500 acres
13,000 – 30,000 acres
30,000 – 90,000 acres
WHY SOYBEANS?
• Good standability
• Likes moisture
• Non-host for aphanomyces
• Weed control options available
• Later maturity can spread out harvest
• Limited disease and insect pest pressure (for now)
• Harvestability is good
• Good marketing options globally (global commodity)
BIGGEST ISSUE: MATURITY / YIELD
1. Choose the right variety
2. Double inoculate to ensure adequate nodulation
3. Fertilize to maximize pod height and plant growth
4. Use ideal seeding rates
5. Control weeds
6. At harvest, cut low and slow down to reduce seed
losses
SELECT THE RIGHT VARIETY
• For Saskatchewan Maturity Group 000 or 00 with good yield potential
• Consider disease resistance traits (white mould, phytophthora, IDC)
• Consider herbicide traits and weed management
SK Seed Guide 2016
FERTILITY?
• Maximum rates of seed placed P < removal
Ideal Fertility of
Soybean Field:
SOYBEAN NUTRIENT REMOVAL:
Nutrient Removal Rates (lbs./bu)
Nitrogen Phosphorus Potassium
Soybeans 3.8 lb/bu 0.85 lb/bu 1.4 lb/bu