Unless the site has soils with high water-holding capacity and reliable late spring and early summer rainfall (October to December in New Zealand, and April to June in Oregon), then irrigation is necessary. Seed yields for Advance grown with and without irrigation are shown in Table 23-12.


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Table 23-12. Comparison of irrigation and dryland seed yields of Advance forage tall fescue (Rolston, unpublished data, 2004).





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Paddock (Field) Selection: Soil Type and Site Characteristics (This Chapter)