Angelika Hilbeck, Eugenio Tisselli, Simon Crameri, Kallunde P. Sibuga, John Constantine, Mawazo J. Shitindi, Method Kilasara, Ayubu Churi, Camillius Sanga, Luambano Kihoma, Gladness Brush, Fadhili Stambuli, Rainard Mjunguli, Blaise Burnier, Janet Maro, Angelina Mbele, Suleyman Hamza, Mary Kissimbo, Ayoub Ndee
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引用次数: 1
Abstract
This study discusses the results of a 5-year Agroecology Research and Advocacy project at three Tanzanian field sites in different agroecological zones. We investigated four common agroecological practices: compost application, mulching, intercropping, and biological pest control either alone or in combination. Two custom-built ICT tools – AgroEco Research (AER) and AgroEco Analysis (AEA) application – supported the field research. AER and AEA integration allowed secure data storage and real-time automated visualization and statistical analyses without programming. At no field station did legume intercropping or biological pest control increase cassava yields. The Chambezi field station had the highest yields even under untreated control conditions and only here, soil fertility amendments further increased root weights. Intercropping with cowpea legumes, alone or in combination with other practices, had no significant effect on cassava plant size or survival at the Mumbaka and Vianzi field sites and even negatively affected one or both parameters. Organic pest control had no effect on any target variable, except for plant size at Chambezi. Therefore, labor-intensive and expensive pest control practices may not be worth the investment at least when virus-resistant cassava varieties like Kiroba are used.
本研究讨论了在坦桑尼亚不同农业生态区的三个实地进行的为期5年的农业生态学研究和宣传项目的结果。我们调查了四种常见的农业生态实践:堆肥施用、覆盖、间作和单独或组合的生物害虫防治。两个定制的ICT工具——AgroEco Research (AER)和AgroEco Analysis (AEA)应用——支持了实地研究。AER和AEA集成允许安全的数据存储和实时自动可视化和统计分析，而无需编程。豆科作物间作或生物虫害防治都没有提高木薯产量。Chambezi大田站即使在未经处理的对照条件下也有最高的产量，只有在这里，土壤肥力改良进一步增加了根重。在mumaka和Vianzi地区，单独间作豇豆和豆科作物或与其他方法联合间作对木薯的植株大小和成活率没有显著影响，甚至对其中一项或两项指标都有负面影响。除Chambezi的植株大小外，有机害虫防治对其他目标变量均无影响。因此，劳动密集型和昂贵的虫害防治措施可能不值得投资，至少在使用Kiroba等抗病毒木薯品种时是这样。
期刊介绍：
Agroecology and Sustainable Food Systems is devoted to the rapidly emerging fields of agroecology and food system sustainability. By linking scientific inquiry and productive practice with transformative social action, agroecology provides a foundation for developing the alternative food systems of the future. The journal focuses on the changes that need to occur in the design and management of our food systems in order to balance natural resource use and environmental protection with the needs of production, economic viability, food security, and the social well-being of all people.
Agroecology and Sustainable Food Systems examines our current food systems from production to consumption, and the urgent need to transition to long-term sustainability. The journal promotes the study and application of agroecology for developing alternatives to the complex problems of resource depletion, environmental degradation, a narrowing of agrobiodiversity, continued world hunger, consolidation and industrialization of the food system, climate change, and the loss of farm land. The journal uses a food systems approach, and seeks experiences in agroecology that are on-farm, participatory, change-oriented, and backed by broad-based methodologies of sustainability analysis and evaluation.
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