Efficiency of nitrogen carriers in calcareous soil under hybrid rice-wheat -green gram cropping system: a step towards Nutrient Expert® based 4R Stewardship plant nutrition approach

The carriers or the sources of added nitrogenous fertilizers play an important role in regulating N transformations, changing N loss patterns, and influencing NUE. Thus, there is ample opportunity to improve yields of hybrid rice-wheat system through the use of right nitrogen sources. Nutrient Expert (NE) decision support system based on principles of site specific nutrient management (SSNM), offers solutions for providing field specific fertilizer recommendations to improve yield and economics of rice-wheat growing farmers in the region. Recently some N sources has been introduced in the market such as neem-coated urea, sulfur coated urea, etc. Thus, for improvement in efficiency of Nutrient Expert recommendations based on locally available N sources by the farmers, a field experiment was initiated during kharif-2016 in hybrid rice-wheat-green gram cropping system at experimental farm of DRPCAU, Pusa.

IPNI-2016-IND-542