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Response of timothy to increasing rates of potassium


, : Response of timothy to increasing rates of potassium. Journal of the Scientific Agricultural Society of Finland 55(2): 163-178

In field trials at 9 sites between 61 and 65 degrees N. in Finland in 1977-9, timothy was given 0-80 kg K/ha as KCl at the beginning of the growing season and again after the 1st cut. On peat soils the av. 2-yr yields without K were 34-66% of those with K compared with 81% and 76% on humus and fine sand soils, resp. No response was obtained on silty clay. On the most responsive soils, the relative yields without K were 88, 75, 58 and 45% for the 1st 4 successive cuts.

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