نتایج جستجو برای: sustainable food
تعداد نتایج: 384060 فیلتر نتایج به سال:
Agricultural production is considered to be among the largest drivers of global environmental degradation [...]
In discussing the relationship between food and sustainability, three main points must be made. First, food is fundamental to sustainability. For a long time food has operated in the shadows of energy, LEED construction, and other physical aspects of sustainability. In reality, however, one cannot have sustainability without addressing food and agriculture. Second, food cannot be dealt with in ...
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Campus sustainable food projects recently have expanded rapidly. A review of four components - purchasing goals, academic programs, direct marketing, and experiential learning - shows both intent and capacity to contribute to transformational change toward an alternative food system. The published rationales for campus projects and specific purchasing guidelines join curricular and cocurricular...
The use of biological control for the management of pest insects pre-dates the modern pesticide era. The first major successes in biological control occurred with exotic pests controlled by natural enemy species collected from the country or area of origin of the pest (classical control). Augmentative control has been successfully applied against a range of open-field and greenhouse pests, and ...
There is a growing recognition that the present demographic patterns in sub-Saharan Africa, including Ghana, do not augur well for the achievement of sustainable development. Ghana is characterized by a youthful population, rapid population growth, uneven population distribution, high fertility, and rural-urban migration which has brought human numbers into collision with resources to sustain ...
Sustainability is a key challenge for humanity in the 21st century. Ecosystem services-the benefits that people derive from nature and natural capital-is a concept often used to help explain human reliance on nature and frame the decisions we make in terms of the ongoing value of nature to human wellbeing. Yet ecosystem service science has not always lived up to the promise of its potential. De...
Cover crops are important components of sustainable agricultural systems. They increase surface residue and aid in the reduction of soil erosion. They improve the structure and water-holding capacity of the soil and thus increase the effectiveness of applied N fertilizer. Legume cover crops such as hairy vetch and crimson clover fix nitrogen and contribute to the nitrogen requirements of subseq...
Microalgae have been used for centuries to provide nourishment to humans and animals, only very recently they have become much more widely cultured and harvested at large industrial scale. This paper reviews the potential health benefits and nutrition provided by microalgae whose benefits are contributing to expand their market. We also point out several key challenges that remain to be address...
The banana is the world's largest herbaceous flowering plant. Commercial bananas are sterile and are propagated by planting root stock from donor plants (the dark specks in the center of a banana are undeveloped ovules, the precursors to seeds).
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