Influence of Nitrogen and Potassium on the Yield and Chemical Composition of Orchardgrass1

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Abstract
Synopsis: Nitrogen increased orchardgrass yields significantly throughout the season. However, potassium produced a significant yield increase only at the third harvest. Both nutrients depressed the percent total fructose of the sheaths during the first two growth periods. This effect was reversed for nitrogen during the third growth period. Asparagine accumulated abnormally in the second and third harvests when potassium fell below 1.6% of the dry weight.

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