Fertilization of rice crop in pot culture with vermicompost, farm yard manure and RDF in Namakkal district of Tamil Nadu

Rice is an efficient crop with significant response of fertilizing both organic and inorganic source of fertilizers. The research was carried out at PGP College of Agricultural Sciences, Namakkal affiliated with Tamil Nadu Agricultural University, Coimbatore. The pot experiment was laid out in a completely randomized design with sixteen treatments with rice variety of ADT 45 and the treatment comprised of 75 and 100 % RDF (Based on STCR approach) with two organic sources of nutrient such as vermicompost @ 5 t/ha and FYM @ 12.5 t/ha + seed treatment with Azospirillum and Phosphobacteria (Bacillus megaterium var phosphaticum) + nursery soil application of AM fungi. Findings concealed that grain (35.2 g-1 pot) and straw yield (42.0 g-1 pot), nutrient uptake in grain (0.30 g-1 pot of N, 0.094 g-1 pot of P and 0.30 g-1 pot of K) and straw (0.45 g-1 pot of N, 0.034 g-1 pot of P and 0.71 g-1 pot of K) and the total nutrient uptake i.e. N (0.74 g-1 pot), P (0.129 g-1 pot) and K (1.01 g-1 pot) were significantly enhanced by the combined application of application of a recommended dose of fertilizer 100 % (based on STCR approach) + Vermicompost @ 5 t ha-1 + Seed treatment with Azospirillum and Phosphobacteria (Bacillus megaterium var phosphaticum) + Nursery soil application of AM fungi with irrespective of other treatments. Based on the findings it can be concluded that, application of FYM or Vermicompost in suitable combination with the RDF is effective in increasing the growth, yield and nutrient uptake.