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Tilling Grasslands Immediately Reduces Soil Health Indicators
Author(s) -
John Doe
Publication year - 2019
Publication title -
csa news
Language(s) - English
Resource type - Journals
eISSN - 2325-3584
pISSN - 1529-9163
DOI - 10.2134/csa2019.64.0206
Subject(s) - tilling , environmental science , grassland , hydrology (agriculture) , agroforestry , agricultural engineering , agronomy , geology , biology , engineering , geotechnical engineering
Swine manure presents environmental challenges, especially related to phosphorus and trace element composition. Phytase feed supplements to improve feed phosphorus utilization became common after 2003, but did this lower phosphorus concentrations in manure from real-world production barns? Other changes in feed also occurred in the last 20 years, notably the use of zinc supplements in nursery barns.