Inoculants
Inoculants are a must.
Note: In order to achieve a 50 bu/Ac crop soybeans requires 250 – 300 lbs of nitrogen/Ac.
- In order to maintain growth and development during flowering granular and liquid nitrogen inoculants increase plant nodulation and maintain nitrogen levels through maturity.
Inoculant use
Suggested Inoculant use is dependent on your seeding system:
- Narrow openers (air drills, minimum till openers, press drill)
- Liquid & Granular
- Wide seed pattern (air seeder, discer)
- Liquid & Peat
Granular inoculants generally work better & are much more consistent in their performance. These only work well in very close proximity to the seed. If you are using a seeding system that does not draw your seed close to the granular inoculant then a liquid and peat system would be the best way to go.
- It is very important that all inoculants and inoculated seed is stored in a dark cool environment.
- Use treated seed as soon as possible after inoculation. (4 hours with liquid product and 24 hours for dry material)
Calculation rates:
Granular = Acres x 7.5 – 10 lb/ac = Total lbs / 40 lb bag = # of bags
e.g. 80 acres x 7.5 = 600 lbs / 40 = 15 bags
80 acres x 10 = 800 lbs / 40 = 20 bags Use 15 – 20 bags
Liquid = Acres x 1.8 planting rate = Total bu / 40 bu per unit
e.g. 80 acres x 1.8 = 144 / 40 = 3.6 or 4 units
Jumpstart is worth considering on basis of enhancing crop maturity when there are low levels of available phosphate in the soil.
Example of Nodulation
