一种土传香蕉害虫的优化和可持续管理
Optimal and sustainable management of a soilborne banana pest
摘要:
在本文中,我们提出了一个生态友好的优化香蕉或大蕉产量的控制害虫穴居线虫\textit{Radopholus similis}。这种控制依赖于休耕部署,比化学方法更尊重环境。优化是基于一个多季节性模型,其中休耕期遵循种植季节。其目的是在利润方面找到最佳办法,在跨越几个季节的固定时间范围内,在种植季节之间分配休耕期。证明了最优分配的存在性,并提出了一种自适应随机搜索算法来求解该最优化问题。对于相对较长的时间范围,部署一个季节小于最大可能的种植季节数,可以增加休耕期持续时间,并获得更好的多季节利润。对于定期休耕持续时间,利润低于最优解,但最终的土壤虫害也较低。
英文摘要:
In this paper we propose an eco-friendly optimization of banana or plantain yield by the control of the pest burrowing nematode \textit{Radopholus similis}. This control relies on fallow deployment, with greater respect for the environment than chemical methods. The optimization is based on a multi-seasonal model in which fallow periods follow cropping seasons. The aim is to find the best way, in terms of profit, to allocate the durations of fallow periods between the cropping seasons, over a fixed time horizon spanning several seasons. The existence of an optimal allocation is proven and an adaptive random search algorithm is proposed to solve the optimization problem. For a relatively long time horizon, deploying one season less than the maximum possible number of cropping seasons allows to increase the fallow period durations and results in a better multi-seasonal profit. For regular fallow durations, the profit is lower than the optimal solution, but the final soil infestation is also lower.
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