Effect of Integrated Use of Farmyard Manure and Fertilizer Nitrogen with and without Sulphur on Yield and Quality of Indian Mustard (Brassica juncea L.)

摘要

The adequate and balanced supply of plant nutrients is of critical importance in improving the productivity of oilseeds, which, in India is only 935 kg ha~(-1)as compared to the world level of 1632 kg ha~(-1) (Mandal et al. 2002). Due to the prohibitive cost of chemical fertilizers, Indian farmers, who are mostly marginal and small, do not apply the recommended doses of nutrients to these energy-rich crops. Indigenously available organic sources of nutrients have been recorded to enhance the efficiency and reduce the requirements of chemical fertilizers. Oilseed crops respond to sulphur application remarkably depending on soil type and source of its use. The functions of sulphur within the plant are closely related to those of nitrogen and the two nutrients are synergistic. There is a negative balance of sulphur in our soils as its addition through various sources is much lower than the removal. Keeping these facts in view, a field trial was carried out to explore the effect of integrated use of farmyard manure (FYM) and fertilizer nitrogen with and without sulphur on yield and quality of Indian mustard (Brassica juncea L.), cv. NDR-8501.