Biology 2485B Lecture Notes - Lecture 14: Soil Salinity, Sustainable Agriculture, Tillage

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Lecture 14 organic agriculture & climate change effects: organic agriculture as an alternative to sustainable agriculture, climate change effects from production. Learning objectives: appreciate organic agriculture as one of several approaches to sustainable" agriculture. What are the other options: describe scientific evidence for benefits of organic agricultural practices, describe the main potential effects of climate change on global agricultural production. And some of the patterns people expect. We previously identified several negative impacts of modern agricultural practices: fertilizer runoffs leads to algal blooms and poses human health risks. Irrigation can lead to waterlogging and salinization of soils. Too much of application of water on fields at certain times can lead to waterlogging, which lead to soil salinization: pesticides can affect non-target organisms and human health. There are many different approaches to sustainable agriculture". Sustainable means an activity can meet our current needs without reducing about ability to meet our future needs.

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