Advisor: Nagre, Dr. P. K.BONDRE, SANDIP VINAYAK.2023-12-252023-12-252020-03-09BONDRE, SANDIP VINAYAK. (2019). Organic nutrient management studies in turmeric. Department of Horticulture, Dr. Panjabrao Krishi Vidyapeeth, Akola. Ph. D. 2019. Print. xviii, 148p. (Unpublished).https://krishikosh.egranth.ac.in/handle/1/5810204418The present investigation was carried out during 2015-16 and 2016-17 at Department of Horticulture, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola to study the effect of organic sources on growth, yield, quality, physicochemical and biological properties of soil and nutrient uptake of turmeric and to find out suitable organic treatment combination and biofertilizers for obtaining higher yield and quality of turmeric. The experiment was laid out in Randomized Block Design with twelve treatments viz., T1 - Recommended Dose of Fertilizers (200:100:100 NPK kg ha-1), T2 – Farm Yard Manure @ 20 t ha-1, T3 – Vermicompost @ 13.2 t ha-1, T4 – Neem cake @ 4 t ha-1, T5 – Farm Yard Manure @ 20 t ha-1 + Azatobacter (10 kg ha-1) + PSB (10 kg ha-1) + VAM (65 kg ha-1), T6 – Vermicompost @ 13.2 t ha-1 + Azatobacter (10 kg ha-1) + PSB (10 kg ha-1) + VAM (65 kg ha-1), T7 – Neem cake @ 4 t ha-1 + Azatobacter (10 kg ha-1) + PSB (10 kg ha-1) + VAM (65 kg ha-1), T8 – Azatobacter (10 kg ha-1) + PSB (10 kg ha-1) + VAM (65 kg ha-1), T9 - Recommended Dose of Fertilizers (200:100:100 NPK kg ha-1) + Azatobacter (10 kg ha-1) + PSB (10 kg ha-1) + VAM (65 kg ha-1), T10 - Fermented cow dung slurry @ 12500 l ha-1 in three equal split doses at 30, 60 and 90 DAP, T11 - Fermented cow dung slurry @ 12500 l ha-1 in three equal split doses at 30, 60 and 90 DAP + Azatobacter (10 kg ha-1) + PSB (10 kg ha-1) + VAM (65 kg ha-1), and T12 - Absolute control which were replicated thrice. In growth attributes, the highest emergence count was observed with the application of Vermicompost @ 13.2 t ha-1 + Azatobacter (10 kg ha-1) + PSB (10 kg ha-1) + VAM (65 kg ha-1). The maximum number of tillers per plant were produced by the treatment T7 i.e. Neemcake @ 4 t ha-1 + Azatobacter (10 kg ha-1) + PSB (10 kg ha-1) + VAM (65 kg ha-1). For plant height, treatment T9 i.e. Recommended Dose of Fertilizers (200:100:100 NPK kg ha-1) + Azatobacter (10 kg ha-1) + PSB (10 kg ha-1) + VAM (65 kg ha-1) exhibited superior performance. The significantly maximum number of leaves and leaf area at 120, 180 DAP and at harvest were also observed in treatment T7 i.e. Neem cake @ 4 t ha-1 + Azatobacter (10 kg ha-1) + PSB (10 kg ha-1) + VAM (65 kg ha-1). For the yield attributing traits, significantly maximum number of mother rhizomes per plant, mother rhizome yield, maximum length of mother rhizome, maximum number of total fingers per plant, primary fingers per plant, weight of fingers per plant, length of primary fingers, fresh rhizome yield, dry matter production per plant and length of processed finger were obtained in treatment T7 i.e. Neem cake @ 4 t ha-1 + Azatobacter (10 kg ha-1) + PSB (10 kg ha-1) + VAM (65 kg ha-1). However, the maximum girth of mother rhizomes was noticed in treatment T6 having application of Vermicompost @ 13.2 t ha-1 + Azatobacter (10 kg ha-1) + PSB (10 kg ha-1) + VAM (65 kg ha-1). For quality parameters viz. oleoresin and curcumin content no significant differences were observed among the treatments. However, treatment T7 i.e. Neem cake @ 4 t ha-1 + Azatobacter (10 kg ha-1) + PSB (10 kg ha-1) + VAM (65 kg ha-1) resulted into highest essential oil content of leaves. In respect of physico-chemical properties of soil viz. organic carbon, available NPK status of soil and nutrient content of leaves along with NPK uptake by the plants treatment T7 i.e. Neem cake @ 4 t ha-1 + Azatobacter (10 kg ha-1) + PSB (10 kg ha-1) + VAM (65 kg ha-1) exhibited superior results. The maximum water holding capacity was observed in treatment T6 i.e. Vermicompost @ 13.2 t ha-1 + Azatobacter (10 kg ha-1) + PSB (10 kg ha-1) + VAM (65 kg ha-1). The better soil biological properties in respect of soil microbial population viz. fungi, bacteria and actinomycetes was observed in treatment T11 consisting application of Fermented cow dung slurry + Azatobacter (10 kg ha-1) + PSB (10 kg ha-1) + VAM (65 kg ha-1). The maximum gross monetary returns was obtained in treatment T7 i.e. application of Neem cake @ 4 t ha-1 + Azatobacter (10 kg ha-1) + PSB (10 kg ha-1) + VAM (65 kg ha-1). However, the maximum net monetary returns and B:C ratio were achieved in treatment T9 i.e. Recommended Dose of Fertilizers (200:100:100 kg ha-1) + Azatobacter (10 kg ha-1) + PSB (10 kg ha-1) + VAM (65 kg ha-1).EnglishThesis