System of Rice Intensification and Integrated Crop Management under Integrated Nutrient Management Improves Growth and Productivity of Lowland Rice
Badahunlang Wahlang
ICAR-Research Complex for NEH Region, Umiam, Meghalaya (793 103), India
Anup Das*
ICAR-Research Complex for NEH Region, Umiam, Meghalaya (793 103), India
Jayanta Layek
ICAR-Research Complex for NEH Region, Umiam, Meghalaya (793 103), India
Ramkrushna G.I.
ICAR-Research Complex for NEH Region, Umiam, Meghalaya (793 103), India
Subhash Babu
ICAR-Research Complex for NEH Region, Umiam, Meghalaya (793 103), India
DOI: NIL
Keywords: Hill ecosystem, Integrated nutrient management, Rice culture, Water management
Abstract
Appropriate rice culture contributes to efficient utilization of limited resources which may contribute to enhance growth and productivity of rice in north eastern hill region. A field study was conducted with three rice cultures i.e., system of rice intensification (SRI), integrated crop management (ICM) and conventional rice culture (CRC) and five nutrient management practices viz., recommended dose of nutrients (RDN) (80:60:40 kg NPK ha-1), farmyard manure (FYM) 10 t ha-1, RDF + FYM 5 t ha-1, 50% RDN + FYM 10 t ha-1 and control in lowland Agronomy field of ICAR-Research Complex for NEH Region Umiam, Meghalaya, India. The results revealed that growth attributes of rice like plant height, tillers plant-1, no of leaves plant-1 and root dry matter production were significantly higher under SRI at maturity which was at par with ICM but remained significantly superior to CRC. However, tillers per unit area were higher under CRC followed by ICM and SRI. The grain yield of rice was maximum under integrated application of RDN + FYM 5 t ha-1 under ICM which was at par with integrated application of 50% RDN + FYM 5 t ha-1 under ICM and integrated application of RDN + FYM 5 t ha-1 under SRI. Thus, the study indicated that adoption of younger seedlings with appropriate age and planting geometry can substantially enhance rice productivity under integrated application of organic and synthetic fertilizers in north eastern hill region.
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Reference
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