T15-1 Soil Science & Management, 4E Chapter 15 Organic Amendments

T15-2 Soil Science & Management, 4E Objectives Explain the benefits of organic amendments Describe how to use animal manure Describe how to use biosolids Explain large-scale composting List environmental side effects of fertilizers and amendments

T15-3 Soil Science & Management, 4E Terms to Know Best Management Practices Biosolids Eutrophication Hypoxia Mesophilic Organic amendment Sewage sludge Thermophilic

T15-4 Soil Science & Management, 4E Animal Manure Figure 15-1 Benefits of manure

T15-5 Soil Science & Management, 4E Animal Manure Problems of manure Content of manure Figure 15-2

T15-6 Soil Science & Management, 4E Animal Manure Nutrient losses from manure Figure 15-3

T15-7 Soil Science & Management, 4E Animal Manure Handling manure Figure 15-4

T15-8 Soil Science & Management, 4E Animal Manure Handling manure Best Management Practices Figure 15-7

T15-9 Soil Science & Management, 4E Biosolids Biosolids problems –Pollutants –Human pathogens –Human vectors –Other problems Application guidelines Criticism of biosolids

T15-10 Soil Science & Management, 4E Compost Figure 15-12

T15-11 Soil Science & Management, 4E Animal and human health Eutrophication and hypoxia Energy costs Human changes in global nitrogen cycles Best Management Practices Fertilizer and the Environment

T15-12 Soil Science & Management, 4E Summary Manure, biosolids, and compost double benefit –Contain nutrients –Provide organic matter Biosolids: recycled “human manure” Composting reduces C:N ratio Improper use can harm environment