Fossil Energy Use in Conventional and Low-External-Input Cropping Systems
نویسندگان
چکیده
منابع مشابه
Comparing Energy Use in Conventional and Organic Cropping Systems
Energy consumption can vary signifi cantly between conventional and organic production systems when accounting for direct energy inputs as well as indirect energy involved in manufacturing, shipping and applying pesticides and nitrogen-based fertilizers. Because organic agriculture reduces the amount of indirect energy inputs, it is often assumed that organic agriculture is less energy intensiv...
متن کاملComparing Energy Use in Conventional and Organic Cropping Systems
Energy consumption can vary signifi cantly between conventional and organic production systems when accounting for direct energy inputs as well as indirect energy involved in manufacturing, shipping and applying pesticides and nitrogen-based fertilizers. Because organic agriculture reduces the amount of indirect energy inputs, it is often assumed that organic agriculture is less energy intensiv...
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A large part of the Indo-Gangetic plain has marginal soils, which are depleted of nutrients and sandy with low water-holding capacity. Fertilizers and irrigation are applied to obtain regular yield. However, high usage of fertilizers and inappropriate methods of irrigation lead to a degradation of soil microfl ora and loss of soil fertility in the long term. In close collaboration with other pa...
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A low-input cropping system has been developed at Yurimiaguas, Peru, to serve as a transition technology between shifting and continuous cultivation for acid soiln of the humid tropics. Principal features are slash-andburn clearing, rotation of acid-tolerant upland rice and cowpea cultivars, maximum residue return, no tillage, and no lime or fertilizer apoiications. When yields decline as a res...
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ژورنال
عنوان ژورنال: Agronomy Journal
سال: 2012
ISSN: 0002-1962
DOI: 10.2134/agronj2009.0457er