1Research Scholar, Agronomy Division, IASRI, New Delhi 110 012
2Principal Scientist, CCUBGA, IASRI, New Delhi 110 012
3Principal Scientist, Agronomy Division, IASRI, New Delhi 110 012
4Senior Scientist, Agricultural Physics, IASRI, New Delhi 110 012
Indian Agricultural Research Institute, New Delhi 110 012
*Corresponding author Email: yvsingh63@yahoo.co.in
Based on part of M.Sc. thesis submitted by first author to IARI, New Delhi during 2012 (unpublished)
A field experiment was conducted during the rainy (kharif) season of 2011 at New Delhi, to investigate the influence of methods of rice (Oryza sativa L.) planting and cyanobacterial inoculants on nutrient uptake and soil chemical properties. Conventional and system of rice intensification (SRI) methods of planting showed statistically at par uptake of N, Fe, Zn, Mn and Cu in grain and straw. Cyanobacterial inoculants + plant growth-promoting rhizobacteria (PGPR) + two-third N through urea recorded the highest concentration and uptake of N, Fe, Zn, Mn and Cu in grain and straw which was on par with recommended dose of N (RDN), i.e. 120 kg/ha. Status of available nitrogen, phosphorus, potassium and iron in soil at harvest was similar in both the methods of rice planting. One-third RDN through compost + two-third RDN through urea recorded the highest available nitrogen content in soil at harvest.
Cyanobacterial inoculants, Nutrient uptake, Plant growth promoting rhizobacteria, Soil nutrient status, SRI
