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M. NAGA JYOTHI*, M.V. RAMANA, C. RAMANA AND B. RAVINDHRA REDDY
College of Agriculture Engineering, Bapatla
The Mechanized System of Rice Intensification (MSRI) reportedly enhances the yields of rice (Oriyza sativa L.) through synergy among several agronomical management and engineering practices. This study was conducted to investigate on alterna-tive tray filling materials to replace the soil media on crop growth, yield characteristics and yield attributes in The Mechanized System of Rice Intensification (MSRI). Focusing on the different alternative filling materials suitable to replace the soil media with 100% seed germination, Ten treatments with different combinations were experimented and a fine thin layer of well decom-posed farm yard manure was spread over all ten treatments o bed filling material (i.e., T1 – 10% Groundnut Shell (GS) + 90% Soil; T2 – 10% Vermin-Compost (VC) + 90% Soil; T3 – 10% Rice Husk (RH) + 90% Soil; T4 – 25% Vermin-Compost (VC) + 75% Soil; T5 – 25% Rice Straw (RW) + 75% Soil;T6 – 25% Rice Husk (RH) + 75% Soil; T7 – 10% Rice Straw (RS) + 90% Soil; T8 – 25% Groundnut Shell (GS) + 75% Soil; T9 – Field Soil (100%) (MT); T10 – Manual Planting (MP)). Above all the filling material pH value was evaluated and was FYM-7.10, rice husk-7.9: rice straw powder -7.6: vermin- compost -6.4 and groundnut shell powder-7.8. The performance with respect to individual treatment of bed material significant difference was observed. The observation of transplanted hills was also noted in root growth and leaf number, Leaf Area Index and number of tillers and panicle number, panicle length and grain number per panicle, grain filling and 1000-grain weight and straw weight. The raising nursery with different bedding materials transplanted with machine significantly influenced grain yield per hectare. Among tested treatments highest grain yield per hectare was observed with T8 (25% GS) as 4858.5 kg/ha and followed by T4 (25% VC) as 4685 kg/ha. However, the lowest grain yield was recorded at 2212.6 kg ha-1 was observed in T6 (25% RH), due to lowest N, P, K contents in rice husk bed material. Finally it has been concluded that there is significant effect of bedding materials on crop growth and yield parameters.
MSRI, SRI, Yield and Crop Parameters.