Recycling Agricultural Waste to Enhance Sustainable Greenhouse Agriculture: Analyzing the Cost-Effectiveness and Agronomic Benefits of Bokashi and Biochar Byproducts as Soil Amendments in Citrus Nursery Production

被引：0

作者：

Lavagi, Valeria ^{[1
]}

Kaplan, Jonathan ^{[2
]}

Vidalakis, Georgios ^{[1
]}

Ortiz, Michelle ^{[1
]}

Rodriguez, Michael V. ^{[3
]}

Amador, Madison ^{[1
]}

Hopkins, Francesca ^{[3
]}

Ying, Samantha ^{[3
]}

Pagliaccia, Deborah ^{[1
]}

机构：

[1] Univ Calif Riverside, Dept Microbiol & Plant Pathol, Riverside, CA 92507 USA

[2] Calif State Univ, Dept Econ, Sacramento, CA 95819 USA

[3] Univ Calif Riverside, Dept Environm Sci, Riverside, CA 92507 USA

来源：

SUSTAINABILITY | 2024年 / 16卷 / 14期

基金：

美国食品与农业研究所;

关键词：

soil amendments; resource use efficiency; economic sustainability; carbon sequestration; nutrient management; ORGANIC AMENDMENTS; NITROGEN; IMPACTS; SYSTEMS;

D O I：

10.3390/su16146070

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Applying bokashi (Bok) at 10% volume/volume (v/v), biochar (BC) at 10% v/v, and their combination (Bok_BC) as soil amendments significantly enhances citrus nursery production, improving plant growth and soil health, alongside offering notable economic benefits. Our greenhouse experiment evaluated these treatments across two fertilizer doses, at half (700 mu S/cm) and full (1400 mu S/cm) electrical conductivity (EC) levels, compared to a control mix, demonstrating improved nutrient availability, water retention, growth rates, and potential for carbon sequestration. Based on the results of this experiment, a cost-benefit analysis was performed; the BC treatment yielded substantial savings, particularly in large nurseries where BC at 700 mu S/cm electrical conductivity (EC) saved USD 1356.38 per day and the same treatment at 1400 mu S/cm EC saved USD 1857.53. These savings stem from increased nutrient contents (N, P, and K) and improved water retention, reducing irrigation; shortened growth cycles due to enhanced growth rates were observed, indirectly suggesting reduced electricity costs for greenhouse operations. Additionally, the increased carbon content within the soil points toward long-term benefits from carbon sequestration, further contributing to the sustainability and economic viability of these practices. These findings highlight the economic advantage of incorporating Bok and BC into soil mixes, providing a cost-effective strategy for enhancing greenhouse agriculture sustainability.

引用

页数：16