Scala has been selected for bio fumigation. After the bruising and processing of the crop, the active substances are converted into gases that are toxic to a large number of soil organisms. Bio fumigation is mainly aimed at combating soil fungi, such as brown rot in potatoes. Seed should be sown in very early spring for spring use and in the autumn for winter use.
Brown mustard requires a good sandy loamy soil, with adequate N; P; K; S to ensure rapid establishment. This crop should not follow other Brassica crops in rotation. For disease control, it is best grown once every 3–4 years.