ISSUE #465

465 - Research Investments Return Big Dividends


The Sugarbeet Research and Education Board of Minnesota and North Dakota just turned 30 years of age. Growers have been able to utilize innumerable production practice recommendations from this research to increase on-farm-profit over the past three decades. A few higher profile successes include:

  • Microrates for weed control
  • Improved nitrogen management recommendations
  • More profitable plant population guidelines
  • Better pesticides and better ways to use them
  • Planter test stands and stand establishment improvement
  • Improved harvesting and storage practices

The 35th Annual Research Reporting Session was held January 11, 2005, in Fargo. Key research results of immediate and future benefit to growers were explained. The following agronomy Gold Standards each have scientists studying them. Each grower should attend winter grower seminars or study research reports to see if these ideas/recommendations might fit their operations.

Fertility Management:

  • Twenty to 40 lbs/A less N significantly increases RST without yield loss on very high (tonnage) sugar/acre rhizomania varieties. Giles and Smith
  • Many corn fields may be over fertilized with N reducing quality of the sugarbeet crop. Lamb, U of MN
  • Match fall and spring tillage systems to previous crop residue levels to maximize stand establishment. Sims, U of MN
  • Heavy corn residue may reduce sugarbeet yields by 3.5 T/A but extra N doesn't give benefit. Sims, U of MN
  • Lime and doubled rates of P & K increased yields on sand syndrome fields and reduced Aphanomyces loss. Giles, NDSU, Smith, U of MN, Prigge, ACSC
  • Sugarbeet root effectively to as deep as 74 inches to utilize water and nutrients even in a very cool year. Franzen, NDSU and Anfinrud, Advanta

Insect Management - Boetel & Dregseth, NDSU:

  • Poncho seed treatment shows great potential for root maggot, springtail, and wireworm control.
  • Vydate shows real promise as a postemergence liquid insecticide.
  • Reapplying insecticide when replanting resulted in very large RSA increases.
  • Post applied insecticide efficacy is not affected by microrate band width.
  • Mustang effective at maintaining beet stands in springtail and wireworm studies.

Disease Management:

  • Cercospora resistance increasing for some fungicides but is less for others - know the situation in your area and practice resistance management. Secor, NDSU
  • Very high ambient temperatures about 100°F or greater reduce cercospora sporulation and may alter management programs. Zidek, MT State
  • Late season fungicide use increases frost tolerance, improves canopy vigor and RSA. Smith, U of MN
  • Watch for Rhizoctonia buildup especially after corn and to a lesser extent after bean crops for impact on sugarbeet yields. Windels, U of MN
  • As many as 13 species of Fusarium identified on sugarbeets, pathogenicity to sugarbeet yet to be determined. Hanson, USDA, Ft. Collins
  • Apply Amistar for Rhizoctonia control when soil temperatures reach 10-15° C for best results. Wharton, MI State
  • Tank mixes of fungicides are effective resistance management tools. Khan, NDSU
  • Cercospora spores successfully trapped, as spore numbers increased disease severity increased. Khan, NDSU
  • Manage tare soil, consider long rotations and resistant varieties to minimize rhizomania buildup and crop loss. Rush, Texas A&M
  • Changes in Rhizomania virus being evaluated. Rush, Texas A&M
  • Weeds as Rhizomania hosts being studied. Wieland, USDA, Fargo

Stand Establishment:

  • One hundred seventy-five beets/100' row maximized yield with Rhizomania resistant varieties at a non-disease site. Nelson, NDSU

Harvest and Storage:

  • If beets are about 1.4 lbs or greater in size respiration rates are relatively constant, smaller roots have slightly higher respiration rates and sugar loss in storage, present population recommendations are acceptable. Klotz, USDA, Fargo
  • Raffinose accumulation in storage increases at pile temperatures about 4°C and between 2 and 10 weeks of storage, pile freezing stops raffinose buildup, low relative humidity increases raffinose content. Haagenson, USDA, Fargo
  • Goltix an experimental herbicide shows some promise for increased Kochia and Lambsquarters control. Dexter NDSU/U of MN
  • Weed control generally decreased as sprayer travel speed increased when using drift control nozzles. Jacobson, NDSU
  • Varietal differences to PPI and PRE Dual Magnum injury observed, see research and extension reports for details. Carlson, NDSU

Review these research results and much more in the 2004 Sugarbeet research and Extension reports. Contact your agriculturist for more information on any of these research projects. They have observed many of these trials in the field in 2004.

2005 Sugarbeet Growers Seminars

  • Feb. 2nd - Fargo Growers Seminar, Holiday Inn
  • Feb. 14th - Grand Forks Growers Seminar, Alerus Center
  • Feb. 23rd - Grafton Growers Seminar, St. Johns Parish Center

Please Note: Coffee - 9:00 a.m. Fargo, Grafton and Grand Forks - Programs from 9:30 to 3:25 p.m.

Winter Seminar Detailed Topics:

  • Dexter - Lambsquarters & Kochia Control, Dual Magnum Issues, Outlook & AIM Use, Fall Nortron, GDD to Time Application
  • Smith - Fungicides for Late Season Growth and Frost Tolerance Can I Travel Faster With My Defoliator Cercospora Resistance Management
  • Giles - Stand Establishment, Liming, Shelterbelts, Rooting Depth
  • Boetel - Poncho New Insecticide and Results Springtail and Wireworm Control Insecticide Use at Replanting
  • Khan - Cercospora Management, Prediction Model, Fusarium Management