作者: OTTER 時間: 2025-3-21 22:08 作者: intoxicate 時間: 2025-3-22 01:04
Postscript: How We Look at Dark Placesg from traditional pastoral grazing to factory farming using industrially produced feedstuff (Fig.6.1). The different systems are characterized by different levels of intensification and management, and are also accompanied by different consequences for the sustainability of the systems and the environment.作者: 字謎游戲 時間: 2025-3-22 04:54 作者: CALL 時間: 2025-3-22 10:49 作者: 值得尊敬 時間: 2025-3-22 12:56 作者: Yourself 時間: 2025-3-22 20:15
https://doi.org/10.1057/9780230275218Suppression of the growth of weeds in agroecosystems can be accomplished in numerous ways. The measures used are either intended to give the crop a favourable starting position in the competition with other species or to keep the crop stand free from weeds, as far as possible.作者: 情節(jié)劇 時間: 2025-3-22 23:54
Introduction,The term “agroecology” is composed of three roots, derived from the Latin . (pertaining to the field), the Greek . (the home or the household), and the Greek . (study).作者: fledged 時間: 2025-3-23 03:05 作者: 拋射物 時間: 2025-3-23 06:19
https://doi.org/10.1057/9780230275218ly 150,000–200,000 years ago. Just as two earlier representatives of the genus . (. and the ancestors of the .) had done before, groups of modern humans left their homeland to colonize other continents. This occurred between 50,000 and 70,000 years ago. The reasons for this migration, which only beg作者: AXIOM 時間: 2025-3-23 13:15
Aspects of Technology and Architectureother unilaterally or reciprocally in numerous relationships. The effects of such interactions have a substantial effect on the different structural and functional characteristics of an ecosystem, for example the number of species present, the sizes of their populations, the temporal development of 作者: micronized 時間: 2025-3-23 17:48 作者: Atheroma 時間: 2025-3-23 21:26
Postscript: How We Look at Dark Placesg from traditional pastoral grazing to factory farming using industrially produced feedstuff (Fig.6.1). The different systems are characterized by different levels of intensification and management, and are also accompanied by different consequences for the sustainability of the systems and the envi作者: Conflagration 時間: 2025-3-23 22:49 作者: creditor 時間: 2025-3-24 04:19
https://doi.org/10.1007/978-3-030-21190-5is, the need to develop alternative food sources emerged and was achieved by production of crops (Sect. .). Since then, the human diet has been almost exclusively based on agricultural products; these, however, have not always been available in sufficient quantities. Repeated famines characterized l作者: 禁止 時間: 2025-3-24 10:13 作者: 雜役 時間: 2025-3-24 10:40 作者: 專橫 時間: 2025-3-24 15:05
Topics in Pricing and Executionreached in tropical and subtropical region rarely covered by clouds (e.g. the Sahara desert). The mean annual insolation in the temperate latitudes is approximately half of that value and amounts to 127 W m.. In Stuttgart-Hohenheim in Germany, for example, the value is highest in July (230 W m.) and lowest in December (50 W m.).作者: COUCH 時間: 2025-3-24 21:09
https://doi.org/10.1007/978-3-030-21190-5 population and the standard of living of, at least, the industrial nations, agriculture has, overall, proved to be a very successful strategy for securing and developing the livelihood of humans. Whereas 10,000 years ago there were only approximately 2–20 million people on earth (Cohen 1997), currently there are more than 7 billion.作者: Mechanics 時間: 2025-3-25 01:33
Crops and Their Environment,reached in tropical and subtropical region rarely covered by clouds (e.g. the Sahara desert). The mean annual insolation in the temperate latitudes is approximately half of that value and amounts to 127 W m.. In Stuttgart-Hohenheim in Germany, for example, the value is highest in July (230 W m.) and lowest in December (50 W m.).作者: Factual 時間: 2025-3-25 04:46
Agroecological Aspects of Global Change, population and the standard of living of, at least, the industrial nations, agriculture has, overall, proved to be a very successful strategy for securing and developing the livelihood of humans. Whereas 10,000 years ago there were only approximately 2–20 million people on earth (Cohen 1997), currently there are more than 7 billion.作者: Aqueous-Humor 時間: 2025-3-25 09:27
Textbook 2013d scientists involved in the development of sustainable agroecosystems and contributes to a range of disciplines including Agriculture, Biology, Geography, Landscape Ecology, Organic Farming, Biological Control, and Global Change Ecology.作者: labile 時間: 2025-3-25 13:43
Textbook 2013esses, human activities and the environment. It provides condensed and comprehensive knowledge on the functions of various agroecosystems at the field, landscape and global scale. Understanding and integrating complex ecological processes into field production, land management and food systems is es作者: Dungeon 時間: 2025-3-25 18:16 作者: Modicum 時間: 2025-3-25 21:39
rstand and to integrate complex interactions.More than 200 iThis book represents an interdisciplinary approach to the relevant aspects of agricultural production related to the interactions between natural processes, human activities and the environment. It provides condensed and comprehensive knowl作者: 我不重要 時間: 2025-3-26 01:34
Aspects of Technology and Architecturend functional characteristics of an ecosystem, for example the number of species present, the sizes of their populations, the temporal development of the communities, and the flows of energy and nutrients.作者: 多嘴多舌 時間: 2025-3-26 06:37 作者: choleretic 時間: 2025-3-26 12:26
https://doi.org/10.1057/9780230275218 predators, but also to protect themselves. The hunt for large animals for example gazelles, buffalo, or even elephants was of little importance for early humans partially because of their still primitive weapons. Presumably, they used a broad range of food sources including plant products (roots, s作者: Pituitary-Gland 時間: 2025-3-26 13:53 作者: Introvert 時間: 2025-3-26 20:25 作者: 失敗主義者 時間: 2025-3-27 00:10
Origin and Development of Agriculture,ly 150,000–200,000 years ago. Just as two earlier representatives of the genus . (. and the ancestors of the .) had done before, groups of modern humans left their homeland to colonize other continents. This occurred between 50,000 and 70,000 years ago. The reasons for this migration, which only beg作者: 橢圓 時間: 2025-3-27 01:29 作者: auxiliary 時間: 2025-3-27 06:54 作者: 全神貫注于 時間: 2025-3-27 10:15
Production and Management of Livestock Resources,g from traditional pastoral grazing to factory farming using industrially produced feedstuff (Fig.6.1). The different systems are characterized by different levels of intensification and management, and are also accompanied by different consequences for the sustainability of the systems and the envi作者: 高腳酒杯 時間: 2025-3-27 14:04 作者: 細胞學(xué) 時間: 2025-3-27 19:55 作者: WATER 時間: 2025-3-28 00:50
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10樓作者: Fraudulent 時間: 2025-3-29 01:56
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