RESIDUAL EFFECT OF INTEGRATED NUTRIENT MANAGEMENT IN RABI MAIZE ON GROWTH AND YIELD PARAMETERS OF SUMMER GREEN GRAM UNDER MAIZE-GREEN GRAM CROPPING SEQUENCE

S.J. SINDHI¹*, J.D. THANKI², R.N. MANSURI³, L.J. DESAI^4
1Department of Agronomy, N. M. College of Agriculture, Navsari Agricultural University, Navsari, 396450, Gujarat
²Department of Agronomy, N. M. College of Agriculture, Navsari Agricultural University, Navsari, 396450, Gujarat
³Department of Agronomy, N. M. College of Agriculture, Navsari Agricultural University, Navsari, 396450, Gujarat
⁴Department of Agronomy, N. M. College of Agriculture, Navsari Agricultural University, Navsari, 396450, Gujarat
* Corresponding Author : sahilamity77@gmail.com

Received : 09-08-2016     Accepted : 24-08-2016     Published : 30-10-2016
Volume : 8     Issue : 52       Pages : 2443 - 2445
Int J Agr Sci 8.52 (2016):2443-2445

Keywords : Biocompost, FYM, Green gram, Grain yield, Maize, Vermicompost
Academic Editor : Jayesh Pathak
Conflict of Interest : None declared
Acknowledgements/Funding : None declared
Author Contribution : None declared

A field experiment was conducted during rabi and summer seasons of 2014-15 and 2015-16 at N.A.U to study the production potential of maize-green gram cropping sequence under integrated nutrient management system. The treatment consisted of integrated nutrient management viz., T1-General RDF (RDF + FYM @ 10 t/ha), T2-75% RDN through chemical fertilizer + 25% RDN through biocompost, T3 -75% RDN through chemical fertilizer + 25% RDN through vermicompost, T4 -75% RDN through chemical fertilizer + 25% RDN through FYM and T5 -control to maize in rabi season as main plot treatments replicated four times in randomized block design. During summer season each main plot treatment was split into four sub plot treatments with four levels of recommended dose of fertilizers viz., S1 -control, S2 -50% RDF, S2 -75% RDF and S4 -100% RDF to green gram resulting in twenty treatment combinations replicated four times in split plot design. The results showed that application of either 75% RDN through chemical fertilizer + 25% RDN through biocompost or 75% RDN through chemical fertilizer + 25% RDN through vermicompost along with recommended dose of 60 kg P2O5 (Considering the phosphorus content in bio-compost and vermicompost) to maize had significant residual effect on the succeeding green gram crop and significantly influenced growth parameters and yield of succeeding green gram, while summer green gram crop should be fertilized with 75% RDF (15-30-00 kg N-P-K/ha) through inorganic fertilizer in maize- green gram sequence. During summer season the residual effect of general RDF (RDF + FYM @ 10 t/ha) applied to rabi maize showed higher growth, yield attributes, seed and stover yields followed by 75% RDN through chemical fertilizer + 25% RDN through vermicompost. Among the levels of RDF directly applied to green gram in summer season, significantly higher values of growth, yield attributes, seed and stover yields were obtained under the application of 100% RDF (S4), which was at par with 75% RDF (S3). Thus, application of 120 kg nitrogen (75% RDN through chemical fertilizer + 25% RDN through bio-compost) or 75% RDN through chemical fertilizer + 25% RDN through vermicompost along with recommended dose of 60 kg P2O5 to maize, while summer green gram crop should be fertilized with 75% RDF (15-30-00 kg N-P-K/ha) through inorganic fertilizer.