Abstract

An experiment was conducted during the samba season (August-December) of 1993 and 1994 with the objective of studying the effect of different methods of phosphorus fertilisation on the growth parameters and yield components of different rice varieties at the Agricultural College and Research Institute, Madurai. Among different methods of P fertilisation, application of recommended dose of phosphorus as enriched farm yard manure (EFYM) influenced the growth and yield attributes followed by the application of DAP to nursery at 2 kg cent+ one third of recommended dose of phosphorus to main field. Among the varieties tested, variety ADT 39 expressed remarkable superiority over other varieties (viz. MDU 2. Co 43, MDU 4 and IR 20) by increased growth parameters and yield attributes. The interaction between the method of P application and genotype was found to be significant. The selection of phosphorous efficient rice varieties like ADT 39 coupled with the application of the recommended dose of phosphorus as EFYM to the main field is found to be suitable for the single crep of rice.

Keywords: Main field, Phosphorus fertilisation, Pice varieties, Yield components