Department of Agronomy, Poznań University of Life Sciences, Poznań, Poland.
Department of Food Technology of Plant Origin, Poznań University of Life Sciences, Poznań, Poland.
PLoS One. 2023 Jan 17;18(1):e0280037. doi: 10.1371/journal.pone.0280037. eCollection 2023.
To counterbalance the growing human population and its increasing demands from the ecosystem, and the impacts on it, new strategies are needed. Use of organic fertilizers boosted the agricultural production, but further increased the ecological burden posed by this indispensable activity. One possible solution to this conundrum is the development and application of more environmentally neutral biofertilizers. The aim of this study was to compare the effectiveness of two doses of Hermetia illucens frass (HI frass) with the commercial cattle manure in the cultivation of basil under drought. Soil without the addition of any organic fertilizer was used as a baseline control substrate for basil cultivation. Plants were grown with cattle manure (10 g/L of the pot volume) or HI frass at two doses (10 and 12.5 g/L). The health and physiological condition of plants were assessed based on the photosynthetic activity and the efficiency of photosystem II (chlorophyll fluorescence). Gas exchange between soil and the atmosphere were also assessed to verify the effect of fertilizer on soil condition. In addition, the mineral profile of basil and its antioxidant activity were assessed, along with the determination of the main polyphenolic compounds content. Biofertilizers improved the fresh mass yield and physiological condition of plants, both under optimal watering and drought, in comparison with the non-fertilized controls. Use of cattle manure in both water regimes resulted in a comparably lower yield and a stronger physiological response to drought. As a result, using HI frass is a superior strategy to boost output and reduce the effects of drought on basil production.
为了应对不断增长的人口及其对生态系统日益增长的需求，以及对生态系统的影响，需要采取新的策略。有机肥料的使用提高了农业产量，但进一步增加了这种不可或缺的活动对生态造成的负担。解决这个难题的一个可能方法是开发和应用更环保的生物肥料。本研究的目的是比较两种剂量的 Hermetia illucens 粪（HI 粪）与商业牛粪在干旱条件下栽培罗勒的效果。未添加任何有机肥料的土壤用作罗勒栽培的基线对照基质。用牛粪（每盆体积 10 克）或 HI 粪（两种剂量 10 和 12.5 克）种植植物。根据光合作用活性和光系统 II（叶绿素荧光）的效率来评估植物的健康和生理状况。还评估了土壤与大气之间的气体交换，以验证肥料对土壤状况的影响。此外，还评估了罗勒的矿物质含量及其抗氧化活性，并测定了主要多酚化合物的含量。与未施肥对照相比，生物肥料在最佳浇水和干旱条件下均提高了植物的鲜重产量和生理状况。在两种水培条件下使用牛粪都会导致产量较低，对干旱的生理反应较强。因此，使用 HI 粪是提高产量和降低干旱对罗勒生产影响的更好策略。
