Recommended cultural practices with 2nd year soys:
A) Conduct primary fall tillage to bury residue
B) Grow different soybean variety
C) Select variety with excellent disease package, (PPR, Pod & Stem Blight, WM, SDS, BSR, Septoria)
D) Select variety with strong pest protection including SCN and soybean aphid
E) Plant Crusier Maax treated, certified seed
F) Spray with fungicide such as Quilt at R1-R2, consider second spray at R5
G) Scout field for insect and diseases more frequently than 1st year soybeans fields
By following these guidelines, growers can still produce a profitable crop of 2nd year soybeans. It is wise to remember, that many soybean pests are called slow builders. This is where the pressure slowly ramps up each year, especially in fields where the soybean rotation frequency is higher than desired within the cropping cycles, until the pest pressure reaches critical threshold levels. Once these levels are surpassed, there is a negative impact on production each time soybeans are grown within the cropping system. It is said by many soybean specialists including Don McClure, soybean breeder with Syngenta, that soybean diseases and pest are the biggest limiting factor to increasing on-farm average yields. The guidelines in this tech report are meant to help producers through plan B situations only. To maintain the highest production levels possible, it is imperative that producers maximize crop rotations with their cropping systems.
Eric Richter, B. Sc (AGR), C.C.A.
Agronomic Sales Rep
Syngenta Canada
No comments:
Post a Comment