Productivity and quality of mango + pineapple agroforestry system under nutrient and irrigation management practices
Loading...
Date
2022-06-08
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Department of Silviculture and Agroforestry, OUAT, Bhubaneswar
Abstract
Fruit based agroforestry system is a highly sustainable, self-reliant and most adoptive system. Now-a-days the land areas are expanding under fruit based agroforestry system. It is a promising strategy for enhancement of productivity of the land and to encounter the needs of the growing population by producing more nutritious food. In this context the present field experiment entitled “Productivity and quality of mango + pineapple agroforestry system under nutrient and irrigation management practices” was conducted at the experimental site of AICRP on Agroforestry Research Farm, Odisha University of Agriculture and Technology, Bhubaneswar, Odisha during May 2020 to June 2021 with an objective to study the effect of irrigation on nutrient management of mango with pineapple agroforestry system. The experiment comprised of three main plots including three irrigation systems i.e., sprinkler, drip & ridge furrow and four subplots including nutrient management such as organic [FYM + Dry leaf mulch + biofertilizer (Azotobacter: Azospirillium: PSB in 1:1:1){4 kg each/ha}], recommended dose of fertilization (RDF) (75%) + FYM, RDF (100%) + FYM, RDF (125%) + FYM. The treatments were replicated thrice and the experiment was carried out in split plot design. The mango trees were placed at a distance of 6 x 6 m2 and spacing between the pineapple plants was 75 x 60 cm2. The pineapple plants were planted in between the interspaces of 20 years old mango trees. During the investigation period the growth parameters of mango trees such as tree height (9.5 m), basal girth (1.11 m), crown height (7.7.m), crown spread (7.6 m) and number of branches (9.8) were recorded highest with RDF (125%) + FYM. Drip irrigation recorded highest growth parameters of mango trees irrespective of its nutrient management practices. The biometric observation of pineapple such as D-leaf length (67.3 cm), plant height (93.9 cm), crown spread (151.7 cm) and number of leaves (49.3) were observed highest with RDF (125%) + FYM and similar trend also followed in pineapple with drip irrigation system. Organic nutrient application recorded highest Total Soluble Solid (17.34 0brix and 17.12 0brix), acidity (0.62 & 0.14), reducing (5.01 & 7.97) and non-reducing sugar (5.79 & 9.49) of pineapple and mango fruit respectively among the four nutrient treatments, while RDF (125%) + FYM recorded the lowest. Among the application of four recommended dose of fertilization, RDF (125%) + FYM found to be the best & this resulted the highest yield of mango and pineapple (72.39 q ha-1 and 93.82 q ha- 1) with highest gross return of Rs 5.65 lakhs per year per ha, net return of Rs 4.02 lakhs per year per ha and BCR 3.46. Similarly, among water supply systems, drip system resulted in utmost gross return, net return and BCR values were noted down i.e. Rs 5.20 lakhs per year per ha, Rs 3.62 lakhs per year per ha and 3.19 in comparison to sprinkler and ridge furrow method of irrigation.