Effect of organic and inorganic sources of fertilizer on growth parameters and productivity of wheat in rice-wheat system
2012
Lata, K. | Singh, K.P. | Nandal, D.P. | Hari Om | Thakral, S.K.
A field experiment was conducted during winter season of 2004-05 and 2005-06 at CCSHAU Rice Research Station, Kaul, Kaithal district of Haryana state to study the effect of organic manures and fertilizers on wheat and to work out their optimum combination in rice-wheat system. The experiment consisting of combinations of six sources of organic manures viz., no organic manure, FYM @ 15 t/ha, vermicompost N1oo' vermicompost N1so' vermicompost N200 and vermicompost N2so and five fertilizer levels viz., no chemical fertilizer, 25, 50, 75; recommended dose of nitrogen and 100; recommended dose of fertilizer (N-150, PPs 60, ZnS04-25 kg/ha).The results of two years' studies revealed that growth parameters were affected significantly by the application of FYM and vermicompost during both the years. Increasing the doses of vermicompost increased dry matter accumulation, LAI and LAD. All the growth parameters were recorded maximum with vermicompost N2 so followed by vermicompost N200 and vermicompost N1so and FYM. CGR was also higher under higher level of vermicompost but no definite trend was observed for the effect of organic manures on RGR. Due to logging at higher level of vermicompost i. e. at N2so and N200 and fertilizer (100; RDF), the grain yield declined significantly as compared to combinations of vermicompost N2so +75; RDN and vermicompost N2oo+75;RDN.
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