Abstract

Acid lime (Citrus aurantifolia Swingle) is one of the commercial fruit crops which occupies important place in the fruit industry, but yield levels of citrus orchards are still very low. Alternate nutrient management system could help in achieving high yield and quality of acid lime. Thus, an investigation was undertaken on the “Effect of nutrient management through bio-organic manures on quality of acid lime (Citrus aurantifolia Swingle)” in the Department of Horticulture, Faculty of Agriculture, Annamalai University, Annamalainagar, Tamil Nadu, India during 2016 – 2018. The experiment was laid out in randomized block design with twelve treatments, various organic manures, biofertilizers along with inorganic fertilizers including recommended dose of fertilization @ 100%, 75%, 50%, farm yard manure @ 100%, 50%, Vermicompost @ 100%, 50%, Biofertilizers ( 25g Azotobacter + 25g phosphate solubilising bacteria + 150g vesicular arbuscular mycorrhizal) were applied. The quality characters of acid lime were studied at different stages. The observations recorded viz., plant height (m), canopy spread east-west (m), canopy spread north-south (m), canopy height (m), no. of leaves per canopy, leaf area (cm2). The results revealed that plants treated with of T8 -75% RDF + 50% FYM + 50% Vermicompost + Biofertilizers (25g Azotobacter + 25g PSB + 150g VAM) was observed maximum plant height (m), canopy spread east-west (m), canopy spread north-south (m), canopy height (m), no. of leaves per canopy, leaf area (cm2).

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