Abstract
A permanent pasture was ploughed, 5 rates of potassium were incorporated in the seed‐bed and a timothy/white‐clover seed mixture was sown direct without a companion crop. Plant counts were taken during the fourth week of establishment. The highest rate of potash increased the size and number of timothy/white‐clover plants considerably, without altering the timothy/white‐clover ratio. Half the plots were cut once during the seeding year and the other half twice. Increasing rates of K increased dry‐matter yields, particularly on the plots cut 7 weeks after sowing. Botanical analysis in the following year showed that, under both cutting systems, increasing rates of K tended to increase the proportion of white clover and decrease that of unsown species.
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