Author(s): P. VINAYALAKSHMI, M. M. LUTHER, M. BHARATHLAKSHMI, C. S. RAO AND V. S. RAO

Abstract: A field study was conducted on seed cane crop at RARS, Anakapalle during 2019-20 and 2020-21, to investigate sugarcane seed crop nutrient dynamics with biofertilisers, trash mulching, and chemical fertilizers. It was designed in a split-plot design having three replications including three primary treatments: a control, biofertilizer combination and trash mulch, and applying N and K at different rates and times to the treatments in the sub plot. The paradigm showed that N, P and K uptake by seed cane and availability in soil after harvest were higher with integration of biofertilisers or trash mulch coupled with 125% soil test-based nitrogen and potassium (STBNK) applied at planting, 30, 60, 90 and 120 days after planting plus additional 25% RDK one month prior to harvest was comparable to 100% STBNK applied at planting, 30, 60, 90 and 120 days after planting plus 25% RDK one month prior to harvesting.

DOI: 10.22271/09746315.2023.v19.i2.1720

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