Soybean season wrap up: Part II
b) Rate of seed treatment. We evaluated the rate and efficacy of numerous seed treatments this past year. For the vast majority of these trials, there was no significant difference in 2011. When we could get into the fields, conditions were typically very good with warm, dry soils. Our irrigated field study, at Northwest branch, showed resistance levels to P. sojae in the variety was the most important factor this year. We evaluated the 0.16, 0.32, and 0.64 fl oz/cwt of Apron XL on Sloan (moderate partial resistance), Conrad (high partial resistance) and Kottman (Rps1k, Rps3a plus high partial resistance). Fungicides had no effect this year on early stand or yield at two locations (P>0.3). However variety was highly significant (P<0.0001) for final yields. Yields of Kottman were greater than Conrad which was greater than Sloan. Resistance to P. sojae provided from 30 to 65% more yield in the resistant varieties compared to the susceptible variety at these two locations in 2011. We have shown over a number of years that seed treatments will be effective in reducing the impact of damping-off, but that the best resistance package of an Rps gene combined with high levels of partial resistance provides consistent performance over years.
- TekWear partners up on new crop monitoring technologies
- Harvest delays impact crop performance, study shows
- Hogs were the exception to the bullish rule Thursday
- Sugarcane aphids found in North Carolina
- Online registration open for Dec. 15-16 AGMasters conference
- Export data, equity gains boost crop futures Thursday morning
- How much corn can the ethanol industry use?
- Economist: Taxing P could reduce risk of algal blooms
- Commentary: Government wants farmers to quit farming
- Ag markets made a generally mixed showing Thursday night
- What is the relationship between maturity group, yield?
- Commentary: Ambulance-chaser lawyers take on Syngenta