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通过NFT系统优化提高两种生菜 (Lactuca sativa L.) 的生长,产量和生理反应

Paulo Pastor-Arbulú¹, Alfredo Rodríguez-Delfín²

¹Facultad de Ciencias, Centro de Investigación de Hidroponía y Nutrición Mineral, Universidad Nacional Agraria La Molina, Lima, Peru.

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|August 21, 2025

概括

通过优化营养膜技术 (NFT) 系统设计和品种选择,水培的产量增加. 在金字塔式NFT模块II和III中,Tropicana获得了最高的产量,证明了更好的生理效率.

科学领域:

控制环境农业
水产培养
植物生理学

背景情况:

越来越多的农业资源需要高效的种植方法.
水培系统,特别是营养膜技术 (NFT),为作物生产提供了最佳的水和空间利用.
菜 (Lactuca sativa L.) 是受控环境中的关键作物,但NFT系统设计和品种相互作用需要进一步研究.

研究的目的:

评估不同NFT系统配置对生菜生长,产量和生理反应的影响.
确定NFT模块设计和菜品种选择对农业和生理性能的影响.
确定最佳组合,以提高水培生菜生产的产量稳定性和生理效率.

主要方法:

两种生菜品种 (Tropicana和Starfighter) 在三个NFT配置 (水平8通道,金字塔式13通道,金字塔式10通道) 中种植.
监测了微环境条件和光合作用光子流密度 (PPFD) 的统一性.
测量了农学性能 (生物参数,每面产量) 和生理反应 (叶绿素含量,酸还原酶活性).

主要成果:

特罗皮卡纳品种的表现普遍优于星际战士,特别是在金字塔式的NFT模块II和III中.
金字塔模块 (II和III) 支持两种品种的较高色素积累和改善代谢.
在模块II (14.14 kg·m−2) 和模块III (13.96 kg·m−2) 中记录了Tropicana的最高产量,在模块II (13.45 kg·m−2) 中记录了Starfighter.

结论:

通过对NFT系统设计和品种选择进行战略整合,可显著提高水培生理效率和产量稳定性.
结合适合的品种,如Tropicana, NFT的金字塔形态显示出可持续和高效的水培系统的巨大潜力.
对这些相互作用的进一步研究可以在受控环境农业中优化资源利用和作物生产率.

关键词:

现金作物的生理学水耕和没有土壤的培养营养膜技术 (NFT)可持续的农业有助于产量的特征

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