Assessing Factors Influencing the Adoption of Orchard Management Practices among Walnut Growers: A Study of Exotic and Native Jumlish Varieties of Nepal

Öz

Walnut, a native high-value crop with a large market demand in the western high hills of Nepal, necessitates the inclusion of sustainable approaches in orchards to improve plant stand and farm output. A survey was carried out from February to July 2023 to ascertain the orchard management status among farmers and the performance of exotic walnut varieties for agro-climatic suitability in Rukum-East. 120 commercial walnut farmers were selected by a simple random sampling method and data were collected from pre-tested, semi-structured questionnaire. The data were analyzed through descriptive statistical tools, t-test and logistic regression. The outcomes of the study revealed that the majority of farmers have an average of 6.79 (ropani) of land under walnut cultivation and 2.22 average years of expertise in walnut orchards. Among different varieties, 64.2% of the respondents used exotic varieties Chandler (US origin), Franquette, and Fernette (French origin), whereas 35.8% of them had locally grafted Jumlish varieties (scions of Hartley and Payne) in their orchard. Education and walnut cultivation areas significantly influenced orchard sanitation adoption. A binary logistic model indicated that land direction, road access, irrigation, Bordeaux paste, and subsidies significantly affected dieback inhibition. The mean comparison of exotic and locally grafted Jumlish varieties showed significant differences in growth performance and agro-climatic suitability. Recommendations include implementing a subsidy program for quality saplings, irrigation, and machinery. Emphasizing dedicated orchard care, reducing sapling mortality, and distributing grafted walnut saplings are essential for sustainable walnut farming.

Anahtar Kelimeler

• Adoption
• Dieback
• Hartley and Payne
• Training and Extension

Kaynakça

1. Adesina AA, Zinnah MM (1993). Technology characteristics, farmers’ perceptions and adoption decisions: A Tobit model application in Sierra Leone. Agricultural Economics 9(4), 297–311.
2. Ahmed S, Bagchi KK (2004). Factors and constraints for adopting new agricultural technology in Assam with special reference to Nalbari district: An empirical study. Journal of Contemporary Indian Policy 35, 60–68.
3. Aryal K, Berg Å, Ogle B (2009). Uncultivated plants and livelihood support–a case study from the Chepang people of Nepal. Ethnobotany Research and Applications 7, 409–422.
4. Asiedu JBK, Owusu-Sekyere JD, Taah KJ, Van Der Puije GC, Ocloo E (2012). The nursery industry in Ghana: Prospects and challenges. ARPN Journal of Agricultural and Biological Science 7(6), 443–453.
5. Barrera V, Norton GW, Alwang JR, Mauceri M (2005). Adoption of integrated pest management technologies: A case study of potato farmers in Carchi, Ecuador (No. 378-2016-21506).
6. Bernard A, Lheureux F, Dirlewanger E (2018). Walnut: Past and future of genetic improvement. Tree Genetics & Genomes 14(1), 1.
7. Papademetriou MK, Herath EM (1999). Deciduous fruit production in Asia and the pacific.
8. Dhakal LP, Shrestha KR, Shrestha KB, Lilleso JPB (2003). Tree planting zones for the benefits to the small holders in Nepal. World Agroforestry Centre 1–18.

9. Dhraief MZ, Bedhiaf S, Dhehibi B, Oueslati-Zlaoui M, Jebali O, Ben-Youssef S (2019). Factors affecting innovative technologies adoption by livestock holders in arid area of Tunisia. New Medit: Mediterranean Journal of Economics, Agriculture and Environment= Revue Méditerranéenne DʹEconomie Agriculture et Environment, 4.
10. Dorji K, Lakey L, Chophel S, Dorji SD, Tamang B (2016). Adoption of improved citrus orchard management practices: A micro study from Drujegang growers, Dagana, Bhutan. Agriculture & Food Security 5, 1–8.
11. FAOSTAT (2020). UN Food and Agriculture Organization, Corporate Statistical Database. https://www.fao.org/faostat/en/#data/QCL/visualize
12. Gebre GG, Isoda H, Amekawa Y, Nomura H (2019). Gender differences in the adoption of agricultural technology: The case of improved maize varieties in southern Ethiopia. In Women's studies international forum (Vol. 76, p. 102264). Pergamon.
13. Hussen S, Yimer Z (2013). Assessment of production potentials and constraints of mango (Mangifera indica) at Bati, Oromia zone, Ethiopia. International Journal of Sciences: Basic and Applied Research 11(1), 1–9.
14. Jahanban-Esfahlan A, Ostadrahimi A, Tabibiazar M, Amarowicz R (2019). A comprehensive review on the chemical constituents and functional uses of walnut (Juglans spp.) husk. International Journal of Molecular Sciences 20(16), 3920.
15. Kattel RR, Regmi PP, Sharma MD, Thapa YB (2020). Factors influencing adoption of major post-harvest handling practices of large cardamom in Nepal. Cogent Food & Agriculture 6(1), 1796201.
16. Lavison R (2013). Factors influencing the adoption of organic fertilizers in vegetable production in Accra [PhD Thesis]. Msc Thesis, Accra Ghana.
17. Levy Y (1998). Citrus irrigation. Nouveaux Acquis de La Recherche En Agrumiculture. Inst. Agronomique Veterinaire Hassan II, Agadir, Morocco, 113–126.
18. Loevinsohn M, Sumberg J, Diagne A, Whitfield S (2013). Under what circumstances and conditions does adoption of technology result in increased agricultural productivity? A Systematic Review.
19. Melesse B (2018). A review on factors affecting adoption of agricultural new technologies in Ethiopia. Journal of Agricultural Science and Food Research, 9(3), 1–4.
20. Mesfin A (2005). Analysis of factors Influencing Adoption of Triticale and its Impact. The Case Farta Wereda (Doctoral dissertation, School of Graduate Studies of Alemaya University).
21. Mignouna DB, Manyong VM, Rusike J, Mutabazi KDS, Senkondo EM (2011). Determinants of adopting imazapyr-resistant maize technologies and its impact on household income in Western Kenya.
22. Mir M, Kumar A (2011). Effect of different methods, time and environmental conditions on grafting in walnut. International Journal of Farm Sciences 1(2), 17–22.
23. MoALD (2021). Statistical information on Nepalese agriculture. Ministry of Agriculture, Livestock and Development. https://moald.gov.np/publication-types/agriculture-statistics/
24. MOALD (2022). Agriculture Statistics | Publication Category | Ministry of Agriculture and Livestock Development. https://moald.gov.np/publication-types/agriculture-statistics/
25. Mwangi M, & Kariuki S (2015). Factors determining adoption of new agricultural technology by smallholder farmers in developing countries. Journal of Economics and Sustainable Development 6(5).
26. Naing NN (2003). Determination of sample size. The Malaysian Journal of Medical Sciences: MJMS 10(2), 84.
27. Namara RE, Weligamage P, Barker R (2003). Prospects for adopting system of rice intensification in Sri Lanka: A socioeconomic assessment (Vol. 75). IWMI.
28. NCFD (2020). Publications | National Centre for Fruit Development (NCFD) | Kirtipur, Kathmandu. https://ncfd.gov.np/en-publications
29. Omonona BT, Oni OA, Uwagboe AO (2006). Adoption of improved cassava varieties and its welfare impact on rural farming households in Edo State, Nigeria. Journal of Agricultural & Food Information 7(1), 39–55.
30. Poudel A, Sapkota S, Pandey N, Oli D, Regmi R (2022). Causes of citrus decline and its management practices adopted in Myagdi district, Nepal. Heliyon 8(7), e09906.
31. Radovic Markovic M (2021). Gender and technology adoption among farmers in Bangladesh. International Review.
32. Sharma RM, Pandey MK, Shankar U (2012). Pest management in walnut: An overview. Ecologically Based Integrated Pest Management 765.
33. Subedi S, Ghimire YN, Adhikari SP, Devkota D, Poudel HK, Sapkota BK (2019). Adoption of improved wheat varieties in eastern and western Terai of Nepal. Journal of Agriculture and Natural Resources, 2(1), 85–94.
34. Thakur RB (2003). A compendium of tree species of Nepal. Mr. & Mrs. RB Thakur.
35. Thapa MB, Dhimal S (2017). Horticulture development in Nepal: Prospects, challenges and strategies. Universal Journal of Agricultural Research 5(3), 177–189.
36. Thapa R, Thapa P, Ahamad K, Vahdati K (2021). Effect of grafting methods and dates on the graft take rate of Persian Walnut in open field condition of Rukum (East), Nepal. Methods, 544, 503–509.
37. Uaiene RN (2011). Determinants of agricultural technology adoption in Mozambique. 10th African Crop Science Conference Proceedings, Maputo, Mozambique, 10-13 October 2011.
38. Ulrich BN, Roth AJ, Bobich EG (2008). PS 30-152: Influences of microclimate on water relations and phenology of southern California black walnut (Juglans californica). The 93rd ESA Annual Meeting.
39. Zewdie T (2021). Review on factors affecting adoption of improved maize seed technology in Ethiopia. International Journal of Agriculture Extension and Social Development, 1(2), 62-68. https://www.researchgate.net/publication/352933562_
40. Zhang YY, Ni ZJ, Elam E, Zhang F, Thakur K, Wang S, Zhang JG, Wei ZJ (2021). Juglone, a novel activator of ferroptosis, induces cell death in endometrial carcinoma Ishikawa cells. Food & Function, 12(11), 4947–4959.