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Titlebook: Energy and Agriculture; Gerald Stanhill Book 1984 Springer-Verlag Berlin Heidelberg 1984 Agricultural Sciences.Energieversorgung.Energy.La

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樓主: Aggrief
11#
發(fā)表于 2025-3-23 12:32:13 | 只看該作者
Strategische UnternehmensberatungAll energy flowing through agricultural systems is ultimately derived from the sun; it is canalised into the pathways of production through the photosynthetic apparatus. The energy derived from photosynthesis is used to power the processes of growth, development, and differentiation which comprise the life cycle of the plant (Fig. 4.1).
12#
發(fā)表于 2025-3-23 15:19:37 | 只看該作者
Strategische UnternehmensentwicklungAlmost all sources of energy which determine global agricultural production are directly or indirectly solar. Nuclear energy seems unlikely to contribute much even indirectly to agriculture in the foreseeable future and is, therefore, not discussed here.
13#
發(fā)表于 2025-3-23 19:56:04 | 只看該作者
14#
發(fā)表于 2025-3-23 22:42:52 | 只看該作者
Qualifikationen für Führungskr?fteApproximately 3% of all the energy consumed in the United States is used on farms. Gasoline, diesel fuel, heating oil, and liquified propane (LP) gas constituted nearly half the energy used in agriculture in 1981. Even a temporary energy shortfall at a critical time would drastically curtail US farm productivity.
15#
發(fā)表于 2025-3-24 05:35:06 | 只看該作者
16#
發(fā)表于 2025-3-24 07:43:19 | 只看該作者
Energy in Different Agricultural Systems: Renewable and Nonrenewable SourcesAlmost all sources of energy which determine global agricultural production are directly or indirectly solar. Nuclear energy seems unlikely to contribute much even indirectly to agriculture in the foreseeable future and is, therefore, not discussed here.
17#
發(fā)表于 2025-3-24 12:43:50 | 只看該作者
18#
發(fā)表于 2025-3-24 15:30:17 | 只看該作者
Energy Use and Management in US AgricultureApproximately 3% of all the energy consumed in the United States is used on farms. Gasoline, diesel fuel, heating oil, and liquified propane (LP) gas constituted nearly half the energy used in agriculture in 1981. Even a temporary energy shortfall at a critical time would drastically curtail US farm productivity.
19#
發(fā)表于 2025-3-24 22:55:38 | 只看該作者
Strategische Stakeholder-Anspracheby the agricultural sciences. Indeed the centrality of the subject of energy transfer within the multiplicity of agricultural sciences suggests that the role of energy could provide an integrating framework within which a unified science of agriculture could be built.
20#
發(fā)表于 2025-3-25 00:00:47 | 只看該作者
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