Author(s): A. JAYAPAL AND O.K. SWADIJA

Abstract: A two-year field study was conducted at the Instructional farm attached to College of Agriculture, Vellayani, Kerala during 2014 to 2016 to study quality augmentation through tillage and nutrition in tannia. The design was split plot and it was replicated four times. The treatments were l₁(conventional tillage followed by pit system), l₂(conventional tillage followed by mound system), l₃(deep tillage followed by pit system) and l₄(deep tillage followed by mound system). The sub plot treatments were combinations of soil conditioners s₁(control), s₂(coir pith), s₃(rice husk) and two nutrition systems n₁(integrated nutrient management-INM) and n₂(organic nutrition). Results of the experiment revealed that the quality characters of tannia like, total dry matter production, harvest index, cormel dry matter, starch, protein and shelf life can be augmented by adopting deep tillage with pit system of planting, applying coir pith @ 500g plant^-1 as soil conditioner and by providing organic nutrition (FYM @ 37.5 t ha^-1 + wood ash @ 2 t ha^-1).

DOI: 10.22271/09746315.2021.v17.i1.1406

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