Vol. 6 (3) : May-June 2015 issue
Green Farming Vol. 6 (3) : 534-537 ; May-June, 2015
Response of seaweed saps on rice productivity (Oryza sativa L.)
P.C. KANWAR1*, S.K. DWIVEDI2, A. PAL3 and K.K. LODHI4
Department of Agronomy, Indira Gandhi Krishi Vishwavidyalaya, Raipur - 492 012 (Chhattisgarh)
Designation : 1,4P.G. Student *(kanwarpc21@gmail.com), 2Scientist, 3SRF
Subject : Agronomy and Crop Production
Paper No. : P-2524
Total Pages : 4
Received : 11 September 2014
Revised accepted : 14 April 2015
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Citation :
P.C. KANWAR, S.K. DWIVEDI, A. PAL and K.K. LODHI. 2015. Response of seaweed saps on rice productivity (Oryza sativa L.). Green Farming Vol. 6 (3) : 534-537 ; May-June, 2015
ABSTRACT
A field experiment was conducted during the kharif season of 2013 at Research-cum-Instructional Farm of I.G. Krishi Vishwavidyalaya, Raipur (Chhattisgarh) to study the response of foliar application of seaweed saps on growth and yield of rice in Inceptisol of Chhattisgarh. The foliar spray was applied three sprays at different concentrations (0, 2.5, 5.0, 7.5, 10 and 15% v/v) of seaweed extracts (namely Kappaphycus and Gracilaria). Foliar applications of seaweed extract significantly enhanced the growth and yield parameters. The highest grain yield was recorded with applications of 15% Gracilaria sap + recommended dose of fertilizer (RDF), followed by 15% Kappaphycus sap + RDF extract resulting in an increase by 34.15% and 30.56% grain yield, respectively compared to the control (water spray + RDF). Application of 15% G sap + RDF (T8) also gave significantly highest uptake of N, P and K in grain and straw. The highest net return (` 61,377.20 ha-1) and B:C ratio (2.57) were observed with the application of 15% Gracilaria sap + RDF.
Key words :
Gracilaria, Growth & yield attributes, Kappaphycus, NPK uptake, Rice, Seaweed saps,.
