Root diseases in wheat on clover ley : factors under investigation. 4. Seed bed preparation

The occurrence of root rots in wheat crops in relation to seed bed preparation was studied in a series of field experiments. Results suggest depth of cultivation has little effect upon the incidence of root diseases. Ploughing of the seed bed reduced the amount of root rot compared with scarifying and also gave higher yields. However, the increased yield appears to be mainly due to better control of weeds