Comparative Analysis of Different Nitrogen Treatments on Yield and Its Attributes in SRI and Conventional Cultivation


Venkatanna B, Latha PC, Srinivas D and Mahender Kumar R*

Indian Institute of Rice Research (ICAR-IIRR), Hyderabad-500030

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Volume 15(2), 2022   ;  Click here for Pdf

Received: 20th November 2022; Accepted: 28th December 2022



The current study reveals the effect of inconsistent nitrogen treatments on yield and yield attributes in the System of Rice Intensification (SRI) and conventional practices when compared during Kharif 2018 and 2019. Growth parameters like plant height, tillers per plant, yield attributes viz; length of panicle, number of filled and unfilled grains per panicle, test weight, straw yield, and harvest index were compared under both conventional and SRI methods. Subplots comprising four nitrogen management practices like control (N1),100% organic (N2), 50% organic+50% inorganic (N3) 100% inorganic (N4) were taken. The maximal yield was recorded in SRI (5265 kg ha-1) than conventional cultivation i.e., Normal Transplanting (4168 kg ha-1). Among the nitrogen management practices 50% inorganic + 50% organic treatments (N3) showed better performance when compared to 100% inorganic (N4), followed by 100% organic (N2) and control (N1). The pooled analysis of grain yield was observed to be highest in the N3 treatment (5551 kg ha-1), followed by N4 (5185 kg ha-1), N2 (4988 kg ha-1), and control N1 (3142 kg ha-1). A similar pattern was also seen pertaining to the yield attributes.