Effect of Potassium Rate and Source on Yield and Composition of Bromegrass in Alaska1
- Winston Laughlin and
- Sigmund H. Restad2
K application increased dry-matter yields. Each K increment increased the K content, tended to increase the sum of cations, and tended to decrease the Ca content and Ca/Mg ratio. The P and Mg contents were independent of K application. Forage contained very high Mg and low Ca producing a very low Ca/Mg ratio. Sulfate and muriate of potash were equally effective as K sources. Second clipping forage contained more P and Mg each year than first clipping forage.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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