Yield Performance of Rice (Oryza sativa L.) Varieties in Direct Seeded Condition under Organic Farming

Abstract

Field experiments were conducted during rainy seasons of 2018 to 2020 at Regional Rice Research Station, Navsari Agricultural University, Vyara, Gujarat on clayey soils. The treatment consists of four rice varieties i.e., Purna, GR 5, GNR 6 and IR 28 with 100 % and 50 % recommended dose of N through FYM. Result showed that significantly higher plant height recorded in variety GR 5 which was at par with variety Purna. Highest panicle m-2 were recorded in variety Purna followed by GR 5. Significantly higher grain yield was recorded in variety Purna which was statistically at par with variety GR 5. Significantly higher straw yield was recorded in variety GR 5 which was statistically at par with variety Purna. The treatment consists of application of 100% and 50% recommended dose of Nitrogen through farmyard manure recorded non significant difference.  Hence, farmers of south Gujarat, growing direct seeded upland rice (Purna or GR 5) organically are needs to apply 37.5 kg N ha-1 (50% recommended dose of Nitrogen) through farmyard manure for achieving profitable yield.