Potash deficiency

Potash deficiency occurs in older pastures ad sandy areas in Victoria. The rate of depletion is shown by the fact that 2 and a half tons of hay remove 1 cwt. of potash from the soil. The symptoms of this deficiency in pastures; how to apply potassium fertilizers; pasture management to prevent deficiency; the economics of costs and returns from the use of potassium fertilizers.