arbovirus 发表于 2025-3-26 22:09:16

Hermann Kretzschmarractices for sustainable agriculture are described.Provides .Modern industrial agriculture is not sustainable because of its heavy reliance on petroleum, a non-renewable source of the energy used in farming, and because of pollution caused by petroleum products such as fertilizers and pesticides. A

conspicuous 发表于 2025-3-27 04:24:47

Hermann Kretzschmard because of pollution caused by petroleum products such as fertilizers and pesticides. A systems analysis of farming suggests that agriculture will be more sustainable when services of nature, such as nutrient recycling by soil micro-organisms and natural controls of insects, replace the services n

Cupidity 发表于 2025-3-27 06:13:16

Hermann Kretzschmarractices for sustainable agriculture are described.Provides .Modern industrial agriculture is not sustainable because of its heavy reliance on petroleum, a non-renewable source of the energy used in farming, and because of pollution caused by petroleum products such as fertilizers and pesticides. A

淘气 发表于 2025-3-27 10:09:37

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preeclampsia 发表于 2025-3-27 15:46:53

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预兆好 发表于 2025-3-27 20:23:52

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finale 发表于 2025-3-27 23:37:52

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Stress-Fracture 发表于 2025-3-28 05:00:27

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慎重 发表于 2025-3-28 06:19:50

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行为 发表于 2025-3-28 10:27:04

Geschichtliche Entwicklung der Hefetechnik,ine obergärige Hefe, die durch Abschöpfen oder Absieben, durch Absetzen oder Zentrifugieren von der teilweise oder völlig vergorenen Nährlösung getrennt, mit Wasser nachgewaschen und durch Pressen oder andere Trennungsvorrichtungen bis zur festen Konsistenz entwässert wurde.
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查看完整版本: Titlebook: Hefe und Alkohol sowie andere Gärungsprodukte; Hermann Kretzschmar Book 1955 Springer-Verlag Berlin Heidelberg 1955 Bindungen.Chemikalie.E