Integrated use of various organic and inorganic nitrogen sources on growth, yield and quality of rice (Oryza sativa L.) – A review

Rice growing countries indicate that application of nitrogen through organic sources or chemical fertilizers plays a dominant role in increasing the yield. To meet the current shortage of chemical fertilizers caused by energy crisis and socio economic constraints, it has become desirable to conserve crop residues and organic manure's and recycle them into the soil to increase the efficiency of soil nutrients. In general, integrated use of organic and inorganic nitrogen is the best combination of available nitrogen management techniques, which would facilitate achieving the required productivity and sustainability by efficient use of soli and applied nitrogen.