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Critical loads in freshwater ecosystems (1995-1998): a summary report to DETR [PDF]
Allott, T.E.H. +8 more
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Determining the effectiveness of the Clean Air Act and Amendments on the recovery of surface waters in the northeastern US, 2010 [PDF]
Kahl, Steve +2 more
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Proposals for the implementation of direct seeding mulch-based cropping systems in Khon Kaen and Chiang Maï provinces [PDF]
Boyer, Johnny +2 more
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Acid Soils and Acid Sulfate Soils
2018Soils that have pH values less than 7 are usually called acid soils or acidic soils. The less is the value of pH, the stronger is the acidity. Soils having pH values
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