The influence of chemical manures upon 'white rot ' of allium

Abstract

1. High potash manuring showed some decrease in the attack of Sclerotium cepivorum on onions. This diminished attack appears to run parallel with greater resistance of the bulb tissues to invasion. 2. There was an indication from plot experiments that liming reduced considerably more the amount of 'white rot' of onion seedlings than the potash manuring. 3. The average weight of onion bulbs was considerably affected by different manurial treatments. On sandy light land, nirtogenous manuring showed a marked increase in the weight and size of the bulbs.