STUDY ON INORGANIC FERTILIZERS AND BIOFERTILIZERS ON GROWTH AND PRODUCTION OF PAPAYA (Carica papaya L.) cv. RED LADY
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Date
2024
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College of Horticulture and Forestry, Jhalawar
Abstract
A field experiment entitled “Study on inorganic fertilizers and biofertilizers on growth and production of Papaya (Carica papaya L.) cv. Red Lady,, was conducted during the year 2023-24, at the Instructional Field, Department of Fruit Science, College of Horticulture and Forestry, Jhalawar. The experiment consisted of 11 treatments laid out in Randomized Block Design with three replications.
Among different treatments, soil application of T3 (75% RDF +50g Azotobacter + 50g PSB + 50g KSB) to individual plant was found significantly superior over other treatments with respect to growth and production parameters like plant height (244.50cm, 166.65%), plant girth (32.15cm, 71.55%), plant spread E-W (153.85cm, 50.61%), plant spread N-S (154cm, 51.43%), number of leaves/plant (61.45, 207.25%), number of nodes (70.95, 254.75%), leaf area (1925.33cm2, 375.23%), and leaf area index (4.99, 252.56%). Yield parameters like fruit weight (1570.65g), fruit length (26.35cm), fruit diameter (39.85cm), fruit circumference (60.18cm), fruit volume (1750.95cc), pulp wight (1385.75g), pulp thickness (30.99mm), pulp/peel ratio (18.25), and yield/plant (89.75kg) were also better in this treatment. The quality parameters like total sugar (9.23%), reducing sugar (7.66%), non-reducing sugar (1.92%), ascorbic acid content (51.50mg/100g) and TSS (11.72oBrix) were found improved significantly in T3 (75% RDF +50g Azotobacter + 50g PSB + 50g KSB).
The soil application of T3 (75% RDF +50g Azotobacter + 50g PSB + 50g KSB) had significant effect on soil parameters like pH (7.17), EC (0.38 dSm-1) and organic carbon (0.57%). The leaf parameters like chlorophyll content (145.25mg/g), leaf N (2.45%), P (0.60%) and K (3.36%) contents were observed maximum in treatment T3 (75% RDF +50g Azotobacter + 50g PSB + 50g KSB) at the time of final observation during March.
From the present investigation, it may concluded that T3 (75% RDF +50g Azotobacter + 50g PSB + 50g KSB) proved superiority over all treatments in improving growth and production parameters of papaya plant and also in improving soil and leaf parameters. However, it requires more study for further confirmation of results