Effects of seed treatments on Iowa corn yields
The nematode management products did not consistently reduce numbers of plant-parasitic nematodes or corn yields in the experiments that were conducted in 2011.
The low population densities of plant-parasitic nematodes that were present in the field did not affect corn yield in the experiments. The numbers and types of nematodes in the experiments were similar to those frequently found in samples submitted to Iowa State University for testing for nematodes that feed on corn from 2000-2010 (see ICM News article).
The nematode management products may have a much more pronounced beneficial effect in fields with very damaging nematode species (like needle nematodes) and in fields with much greater plant-parasitic nematode population densities.
For more detailed information about the methods used and results of the experiments, contact the first author or consult the 2011 annual reports of the ISU Research and Demonstration Farms.
Self-contained hydraulic system with power cables (hydraulic). Tandem Henschen axles (hydraulic). Hydraulic fenders. Manual or hydraulic tilt. 6,500-gallon tank.
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Declining Weigh Blend System
Ranco Fertiservice Inc.