Floricane red raspberry (Rubus idaeus) produces biennial canes that are traditionally managed by annual selective removal of previously fruited floricanes and training of primocanes that will bear fruit in the next growing season. This process of pruning and training is labor intensive and costly, and growers would benefit from more economical methods of pruning and training. This 6-year project evaluated the economic viability of alternate-year (AY) production in a commercial floricane red raspberry field in northwest Washington and compared it to traditional, every-year (EY) production to assess whether the former could save costs. Despite savings from reduced chemicals, fertilizers, labor, general farm supplies, and other variable costs, the overall benefits of AY production were not enough to offset losses in revenue resulting from reduced yields under the conditions of this experiment in northwest Washington.
Lisa Wasko DeVetter, Suzette Galinato, Troy Kortus, and Jonathan Maberry
Aref A. Abdul-Baki, S. Aslan, S. Cobb, E. Beardsley, and T. Burke
A 3-year experiment was conducted to identify problems in Coachella Valley date palm (Phoenix dactylifera) orchards that limit vegetative growth, yield, and fruit quality. Major problems that were identified included soil compaction and stratification that restrict water permeation into the root zone, and low fertility as reflected by the low organic -matter content of the sandy soils. To eliminate the impact of these stresses on plant growth, yield, and fruit quality, a no-tillage alternative management system was introduced to replace the conventional practice of tillage that compacts the soil. No-till was coupled with the use of cover crops to enrich the soil with organic matter, fix N, recycle nutrients, and improve water holding capacity of the sandy soil. In already established orchards, an additional treatment—slip plowing—was also implemented to loosen the soil at lower depths to facilitate water permeation. The positive effects of the alternative system on the soil, tree growth, yield, and fruit quality will be presented.
Husrev Mennan and Mathieu Ngouajio
Mennan, H. Ngouajio, M. Isik, D. Kaya, E. 2006 Effect of alternative management systems on weed populations in hazelnut ( Corylus avellana L.) Crop Protection 25 835 841 Mennan, H. Ngouajio, M. Isik, D. Kaya, E. 2009 Effects of alternative winter cover
Levi Fredrikson, Patricia A. Skinkis, and Ed Peachey
agricultural weeds Cambridge University Press Cambridge, UK Mennan, H. Ngouajio, M. Isık, D. Kaya, E. 2006 Effects of alternative management systems on weed populations in hazelnut ( Corylus avellana L.) Crop Prot. 25 835 841 Monks, C.D. Monks, D.W. Basden, T