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Pinto Beans Respond to Phosphorus Start Fertilizer

Phosphorus-based starter fertilizer can increase pinto bean seed yield. That’s according to Greg Endres, North Dakota State University Extension cropping systems specialist.
 
That finding is the result of nearly a decade of NDSU phosphorus-based starter fertilizer trials conducted at the Carrington Research Extension Center. The trials evaluated pinto bean response primarily with liquid 10-34-0 fertilizer applied using different methods and rates in loam soil generally testing low in phosphorus.
 
Research highlights include:
  • Pinto bean seed yield increased more than 3 hundredweight (cwt) per acre with in-furrow (IF, meaning fertilizer placed directly with seed) -applied 10-34-0 at 2 to 3 gallons per acre (gpa), compared with the untreated check.
  • Yield was similar with IF- and band-applied (2 inches horizontally placed from planted seed) 10-34-0 at 3 to 6 gpa, although the plant population was reduced with IF application.
  • Broadcast or midrow (centered between 22- or 30-inch rows) band-applied 10-34-0 did not increase yield.
  • Yield was similar between low (2.5 to 3 gpa) and high (5 to 6 gpa) rates of IF-applied 10-34-0. The high fertilizer rate reduced the plant population.
  • The plant population and yield were similar between IF-applied 10-34-0 and the low-salt fertilizer 6-24-6.
 
More information about this research is available in NDSU Extension publication “Pinto Bean Response to Phosphorus Starter Fertilizer in East-central North Dakota.”

Dry Bean Scene

North Dakota State University plant pathologist Julie Pasche is taking an integrated approach to dry bean disease management. Listen to more in this week’s Dry Bean Scene on the Red River Farm Network, made possible by the Northarvest Bean Growers Association.