Identifying and responding to soybean inoculation failures
Applying 60 to 70 pounds of actual nitrogen per acre will correct the deficiency and provide an economic return up to 10 bushels per acre if applied timely. Ideally, the supplemental nitrogen should be applied between the R1 growth stage, or one open flower on 50 percent of the plants, and the R2 growth stage, or one open flower on one of the upper two nodes on the main stem on 50 percent of the plants. However, positive results have been reported from nitrogen applications made at R3, or one pod 3/16 of an inch long on one of the upper four nodes on the main stem on 50 percent of the plants.
Broadcast applications of Urea-Ammonium Nitrate (UAN) solutions such as 28 percent UAN will damage the foliage, so these materials should be applied to the soil. Urea can be broadcast without burning the foliage as long as the foliage is dry. Consider adding a urease inhibitor to urea and 28 percent UAN to reduce volatilization losses.
This article was produced by the SMaRT project (Soybean Management and Research Technology). The SMaRT project was developed to help Michigan producers increase soybean yields and farm profitability. Funding for the SMaRT project is provided by Michigan State University Extension and the Michigan Soybean Checkoff program
- Irrigation Association to release online courses with Cal Poly
- Monsanto to invest $120 million in Argentina
- Ag markets ended Tuesday mostly lower
- Fat molecules influence function of key photosynthesis protein
- Monsanto honored for efforts in developing agriculture in Vietnam
- Corn stocks top 1.2 billion bushels
- Activists fighting Golden Rice even more in 2014
- U.S. GMO labeling foes triple spending in first half of this year
- Source shows half of GMO research is independent
- White House issues veto threat on bill to block WOTUS rule
- How much corn can the ethanol industry use?
- East-West Seed signs marketing collaboration with Monsanto