GROWTH PARAMETERS OF RICE, ZERO TILL RAGI AS INFLUENCED BY NUTRIENT MANAGEMENT INTERVENTIONS

S. KIRAN KUMAR¹*, CH. PULLA RAO², V.R.K. MURTHY³, Y. ASHOKA RANI⁴, P.R.K. PRASAD^5
1Department of Agronomy, Acharya N. G. Ranga Agricultural University, Lam, Guntur, 522034, Andhra Pradesh, India
²Professor, Department of Agronomy, Acharya N. G. Ranga Agricultural University, Lam, Guntur, 522034, Andhra Pradesh, India
³Professor, Department of Agronomy, Acharya N. G. Ranga Agricultural University, Lam, Guntur, 522034, Andhra Pradesh, India
⁴Professor & Head, Department of Crop Physiology, Acharya N. G. Ranga Agricultural University, Lam, Guntur, 522034, Andhra Pradesh, India
⁵Professor & Head, Department of Soil Science and Agricultural Chemistry, Acharya N. G. Ranga Agricultural University, Lam, Guntur, 522034, Andhra Pradesh, India
* Corresponding Author : kirankumarsingupurapu@gmail.com

Received : 25-01-2020     Accepted : 13-02-2020     Published : 15-02-2020
Volume : 12     Issue : 3       Pages : 9479 - 9482
Int J Agr Sci 12.3 (2020):9479-9482

Keywords : Plant height, LAI, SPAD meter reading, Nutrient Management Interventions, Rice- Ragi sequence
Academic Editor : Srikanth G A, G S Tewari
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Department of Agronomy, Acharya N. G. Ranga Agricultural University, Lam, Guntur, 522034, Andhra Pradesh, India
Author Contribution : All authors equally contributed

A field experiment was conducted during kharif and rabi seasons of 2017-18 and 2018-19 on sandy loam soil of the Agricultural College Farm, Bapatla. The experiment having seven treatments i.e., T1 : 100% RDF (100-60-40 kg N-P-K ha-1) ; T2: 100% RDF+ Soil application of ZnSO4 @ 50 kg ha-1 ; T3: 125% RDF+ Soil application of ZnSO4 @ 50 kg ha-1; T4: 75% RDF+ Poultry manure @ 0.82 t ha-1 + Soil application of ZnSO4 @ 50 kg ha-1; T5: 75% RDF+ FYM @ 5.0 t ha-1 + Soil application of ZnSO4 @ 50 kg ha-1; T6: 50% RDF+ Poultry manure @1.6 t ha-1+ Soil application of ZnSO4 @ 50kg ha-1 and T7: 50% RDF+ FYM @ 10 t ha-1+ Soil application of ZnSO4 @ 50 kg ha-1. The experiment was laid out in Randomized Block Design and replicated thrice during kharif rice and in rabi each kharif treatment was sub divided into four sub treatments (S1:no fertilizer, S2: 100% RDF, S3: 75% RDF and S4: 50% RDF) and hence, the split plot design was adopted. Total No. of plots per each replication in the rabi was 28 (7x4= 28). Among all the kharif treatments, T7 was recorded maximum growth parameters viz., plant height (), No. of tillers (), LAI () and SPAD reading () in rice. While in rabi, S2: 100% RDF was recorded maximum plant height () and No. of tillers () in ragi in both the years of study in pooled data.

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