Influence of artificial light spectral quality for enhancing growth, nutrient uptake and resource use efficiency of pak choi cv. Choko in indoor agriculture

IF 7 2区工程技术 Q1 ENERGY & FUELS

Sustainable Energy Technologies and Assessments Pub Date : 2025-09-06 DOI:10.1016/j.seta.2025.104566

Mahesh R , Murtaza Hasan , D.K. Singh , R.N. Sahoo , Soora Naresh Kumar , Md. Yeasin , Nand Lal Kushwaha , Roaf Ahmad Parray

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Abstract

Global challenges including population growth, urbanization, resource scarcity and climate change demand transformative innovations in indoor agriculture to enhance resource efficiency and ensure sustainable crop production. The present study evaluates the impact of artificial light spectral treatments on the growth, nutrient uptake and resource use efficiency (RUE) of pak choi (Brassica rapa var. chinensis) in a controlled multi-tier indoor cultivation system. Four light treatments were tested including white + red and blue (W+RB), red and blue (RB), white + blue (W + B) and control (white LED). W+RB significantly improved plant height (21.17 cm), leaf area (471.79 cm²), NDVI and biomass. Enhanced root architecture under W+RB correlated with increased nutrient uptake of nitrogen, phosphorus, potassium, calcium, zinc and iron, underscoring the synergy between root development and nutrient absorption. Additionally, W+RB demonstrated superior resource efficiency, achieving an electrical energy use efficiency of 0.15, water-use efficiency of 77.01 g FW L⁻¹ and light-use efficiency of 0.41 g DW mol⁻². These findings highlight W+RB’s potential to boost productivity and sustainability in indoor agriculture. Future research should scale its application across crops, integrate renewable energy solutions and further enhance resource efficiency to address global food security challenges sustainably.

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人工光谱质量对小白菜生长、养分吸收和资源利用效率的影响。室内农业中的Choko

包括人口增长、城市化、资源短缺和气候变化在内的全球挑战要求室内农业进行变革性创新，以提高资源效率并确保可持续作物生产。研究了人工光谱处理对小白菜（Brassica rapa var. chinensis）生长、养分吸收和资源利用效率（RUE）的影响。试验采用白光+红蓝（W+RB）、红蓝（RB）、白光+蓝（W+ B）和对照（白光LED）四种光处理。W+RB显著提高了株高（21.17 cm）、叶面积（471.79 cm2）、NDVI和生物量。W+RB处理下根系构型的增强与氮、磷、钾、钙、锌和铁的养分吸收增加相关，表明根系发育与养分吸收之间存在协同作用。此外，W+RB表现出优异的资源效率，实现了0.15的电能利用效率，77.01 g FW L−1的水利用效率和0.41 g DW mol−2的光能利用效率。这些发现突出了W+RB在提高室内农业生产力和可持续性方面的潜力。未来的研究应扩大其在作物中的应用，整合可再生能源解决方案，并进一步提高资源效率，以可持续地应对全球粮食安全挑战。

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来源期刊

Sustainable Energy Technologies and Assessments Energy-Renewable Energy, Sustainability and the Environment

CiteScore

12.70

自引率

12.50%

发文量

1091

期刊介绍： Encouraging a transition to a sustainable energy future is imperative for our world. Technologies that enable this shift in various sectors like transportation, heating, and power systems are of utmost importance. Sustainable Energy Technologies and Assessments welcomes papers focusing on a range of aspects and levels of technological advancements in energy generation and utilization. The aim is to reduce the negative environmental impact associated with energy production and consumption, spanning from laboratory experiments to real-world applications in the commercial sector.