Organic Management of Tuberous Intercrops for Resilience, Higher Yield and Profit from Coconut Plantations: Insights from Validation Experiments in Kerala, India

Journal of Plantation Crops（2023）

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Abstract

Fifteen on-farm experiments were conducted in tropical tuber crops intercropped in coconut gardens in Thiruvananthapuram, Kollam and Pathanamthitta districts, Kerala, during 2018-2021 for validation of organic production technologies. The validation experiments were performed under the aegis of the ICAR-Central Tuber Crops Research Institute, Thiruvananthapuram, in a project funded by the Coconut Development Board, Kochi, Kerala. Three treatments viz., T1: organic farming technology (OF), T2: POP recommendation (POP) and T3: farmer's practice (FP) were evaluated in cassava, elephant foot yam and greater yam intercropped with coconut. System productivity and profitability were worked out for the diﬀerent treatments based on yield and income from coconut and tuber crops in the respective treatments. Pooled analysis indicated that the coconut yield under intercropping with tuber crops in organic mode was high by 7-13% in comparison to monocrop of coconut maintained by the farmers. Tuber yield under organic management was superior over POP by 14% and FP by 27%. On an average, the net income from coconut-tuber crop intercropping system under organic management was ₹ 2,36,133 ha-1, whereas it was ₹ 1,56,904 ha-1 in POP and ₹ 1,32,706 ha-1 in FP and significantly outperformed sole coconut (₹ 7,764 ha-1). Thus, the results indicated that organic management of coconut-tuber crop system oﬀered resilience with higher system productivity and profitability.

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【要点】：研究表明，在印度喀拉拉邦椰子园中采用有机管理方式种植块根作物，能够提高系统抗逆性、产量和利润。

【方法】：通过在椰子园中与木薯、象脚芋和大型芋头间作，对有机农业生产技术、常规农业生产建议以及农民常规种植方法进行评估。

【实验】：在2018-2021年间，在喀拉拉邦的三个地区进行了15项农场实验，验证有机生产技术，结果显示有机管理方式下的椰子产量比农民单一种植高出7-13%，块根作物产量比常规农业生产建议高出14%，比农民常规种植高出27%，并且有机管理下的椰子-块根作物间作系统的净收入显著高于其他系统。

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