Growth and Yield Performance of BRRI Dhan29 to Manures and Fertilizers under Both Conventional and SRI System

A field experiment was carried in the Agronomy Field, Bangladesh Agricultural University, Mymensingh to study the effect of integration of fertilizer and manure on the yield performance of Boro rice (BRRI dhan29) under the system of rice intensification (SRI). The experiment included ten treatments of rice production method viz. conventional method (CM) with recommended dose of fertilizer (RDF), conventional method with 15 ton/ha of cowdung, conventional method with 5ton/ha of cowdung + RDF, SRI with 15 ton/ha of cowdung, SRI with 10 ton/ha of cowdung, SRI with 10 ton/ha of cowdung + 50% RDF, SRI with 5ton/ha of cowdung + 100% RDF, SRI with 100% RDF, SRI with 150% RDF and SRI with 100% RDF + biofertilizer (200 g/plot). The results indicated that all crop characters except number of non-bearing tillers/hill, sterile spikelets/panicle and harvest index were significantly influenced due to integration of fertilizer and manure. The SRI method performed better than conventional method. Among the SRI, integration of fertilizer and manure and fertilizer more than 100% of the recommended and biofertilizer rate produced the highest grain yield. The results showed that the best option for the cultivation of BRRI dhan29 during the Boro season was SRI with 100% RDF and biofertilizer (200 g/plot). This integration not only reduced the production cost but also had a long term impact on improvement of soil properties.