Nurin Maisarah Mappah and Borhan Abdul Haya and Muhamad Askari and Ilmas Abdurofi and Dk. Nor Hajijah Ak. Mohiddin and Azwan Awang and Nurul Mayzatul Azwa Jamaludin (2025) The effects of intercropping of sweet corn and groundnut in immature durian orchard on the biological and economic yield indices. Transactions on Science and Technology, 12. pp. 1-10.
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Abstract
Sweet corn (Zea mays convar. saccharata var. rugosa) and groundnut (Arachis hypogaea L.) are important crops with significant nutritional and economic value. However, monoculture practices and land underutilization in immature durian (Durio zibethinus Murr.) orchards present challenges such as soil degradation and reduced productivity. This study evaluated the biological and economic yield indices of intercropping sweet corn and groundnut in immature durian orchards as a sustainable alternative. The research was conducted at the Faculty of Sustainable Agriculture (FSA), Universiti Malaysia Sabah, Sandakan campus, over five months, the experiment employed a randomized complete block design (RCBD) with four treatments: monoculture of sweet corn (T1), monoculture of groundnut (T2), and two intercropping systems with staggered planting times (T3 and T4). Parameters measured included Land Equivalent Ratio (LER), Area Time Equivalent Ratio (ATER), Aggressivity (A), Competitive Ratio (CR), Relative Crowding Coefficient (RCC), Actual Yield Loss (AYL), Monetary Advantage Index (MAI), and Gross Profits (GP). However, results showed that T3 and T4 intercropping systems outperformed monocultures, with T4 yielding the highest fresh weight, MAI, and GP. LER and ATER exceeded 1 in T3 and T4, demonstrating greater land-use efficiency. Sweet corn exhibited higher competitiveness (A and CR) in intercropping systems, while groundnut showed reduced yields under shading. The study concludes that intercropping sweet corn and groundnut in immature durian orchards optimizes land productivity, improves economic returns, and offers a sustainable solution for enhancing orchard management.
| Item Type: | Article |
|---|---|
| Keyword: | Intercropping, Sweet corn, Groundnut, Biological indices, Economic yield indices |
| Subjects: | R Medicine > RA Public aspects of medicine > RA1-1270 Public aspects of medicine > RA421-790.95 Public health. Hygiene. Preventive medicine > RA565-600 Environmental health Including sewage disposal, air pollution, nuisances, water supply S Agriculture > SB Plant culture > SB1-1110 Plant culture > SB320-353.5 Vegetables |
| Department: | FACULTY > Faculty of Sustainable Agriculture |
| Depositing User: | JUNAINE JASNI - |
| Date Deposited: | 21 Oct 2025 14:51 |
| Last Modified: | 21 Oct 2025 14:51 |
| URI: | https://eprints.ums.edu.my/id/eprint/45496 |
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