INTEGRATED NUTRIENT MANAGEMENT IN MANGO (Mangifera indica L.) CV. AMRAPALI

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dc.contributor.advisorGogoi, Bornali
dc.contributor.authorMehta, Ritika
dc.date.accessioned2023-11-23T16:21:59Z
dc.date.available2023-11-23T16:21:59Z
dc.date.issued2021
dc.description.abstractAn experiment entitled “Integrated nutrient management in mango (Mangifera indica) cv. Amrapali” was conducted during 2019-2021 at Experimental Farm, Department of Horticulture, Assam Agriculture University, Jorhat-13 with the objective to determine the effect of Integrated Nutrient Management (INM) on flowering, yield and biochemical constituents of mango and to determine the economics of cultivation. The experiment was laid out in Randomized Block Design with eight number of treatments which were replicated three times. The treatments are T0 : Absolute control, T1 : RDF (730 g N : 180 g P : 680 g K) + FYM plant-1, T2 : 75% RDF + FYM + Vermicompost (3 kg) + Azotobacter + PSB plant-1, T3: 50% RDF + FYM + Vermicompost (5 kg) + Azotobacter + PSB plant-1, T4: 75% RDF + FYM + Vermicompost (3 kg) +Azotobacter + PSB + Rock phosphate (100g) plant-1, T5: 50% RDF + FYM + Vermicompost (5 kg) + Azotobacter + PSB + Rock phosphate (200 g) plant-1, T6: 75% RDF + FYM + Enriched compost (3 kg) + Azotobacter + PSB plant-1, T7: 50% RDF + FYM + Enriched compost (5 kg) + Azotobacter + PSB plant-1. Azotobacter and PSB were applied 5 g each per kg of the compost and FYM was applied 20 kg per plant in every treatment from T1 to T7. Field data was taken for the two years i.e., 2019-2020 and 2020-2021 and the biochemical parameters were evaluated only during the year 2019-2020. During the first year of experiment, Days to 50% inflorescence emergence and Days to 50% flowering, were found to be non-significant. However, integrated application of nutrients had significant difference among each other during the second year of experiment. Pooled analysis over the two years revealed that the minimum days to 50% inflorescence emergence (133.58), minimum days to 50% flowering (143.24), maximum length of panicle (27.74 cm), number of rachis per branch (26.72), percentage of fruit set (33.34), fruit size (10.24 cm), yield per plant (14.60 kg) and pulp-peel ratio (6.31) were observed in T4. Percentage of fruit drop was also found to be lowest in treatment T4. Quality parameters like TSS (22.09º Brix), reducing sugar (4.94%), non-reducing sugar (12.15%) was found to be highest in T4. β carotene content was found to be maximum in treatment T2 which was statistically at par with treatment T4. Titratable acidity and crude fibre were found to be non-significant among the treatments. Results revealed that maximum available nitrogen (286.28 kg/ha), phosphorus (48.55 kg/ha), potassium (183.66 kg/ha) and organic carbon (0.99%) was found in treatment T4. pH among the treatments was observed to be non-significant. The net return and B:C ratio were found to be highest in treatment T4 followed by treatment T2. Thus, in a broader view, treatment T4 was better towards improving the flowering, yield and biochemical constituents of mango which is followed by treatment T2. Hence, considering the above points and based on results of experiment, treatment T4 [75% RDF + FYM (20 kg) + Vermicompost (3 kg) + Azotobacter (15 g) + PSB (15 g) + Rock phosphate (100 g) plant-1] is considered best for recommendation which is followed by treatment T2 [75% RDF + FYM (20 kg) + Vermicompost (3 kg) + Azotobacter (15 g) + PSB (15 g)] plant-1.
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810201761
dc.language.isoEnglish
dc.publisherAAU, Jorhat
dc.subHorticulture
dc.themeINTEGRATED NUTRIENT MANAGEMENT IN MANGO (Mangifera indica L.) CV. AMRAPALI
dc.these.typeM.Sc
dc.titleINTEGRATED NUTRIENT MANAGEMENT IN MANGO (Mangifera indica L.) CV. AMRAPALI
dc.typeThesis
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