OCAMM odds & ends

April 19, 2018
Side dressing with dairy manure

From Leslie Johnson (LPELC):
Webinar: Equipment and facilities for managing manure on small farms. Friday, April 20 at 2:30 pm (EDT).  Four presenters will discuss structure and facilities for conservation and waste management plus other options for smaller poultry, equine and livestock farms.     Details

From UNL Water:
Does manure benefit crop productivity? Environment? Authors of a review of 141 studies from Asia, Europe and the U.S. that compared the use of manure vs. fertilizer based on N application rates found that manure increased average grain yield by 5%, reduced N losses to air and water, improved soil aggregation and cation exchange capacity, and increased soil organic carbon. However, the potential increased risk of P runoff was not addressed.     Article

Effects of liquid manure injection into a winter rye cover crop: on-farm trials. A 2-year University of Minnesota study injected dairy or swine manure into rye cover crops established after corn silage or soybean harvest. Results showed that the method was effective in capturing root-zone nitrates and delivered sufficient N to subsequent corn or soybean crops.     Article

From Ohio AgNet:
A look at acid rain and the farm phosphorus conundrum with water quality. It’s complicated. While application rates and soil erosion have decreased, P loading of many streams and lakes has increased. Explanations include reduced acidity of rainfall, application timing, and tillage practices.     Article

Manure Manager:
Study reports on the positive effects of nutrient and stormwater reduction in the Chesapeake Bay. Reductions in levels of N (23%) and P (8%) have resulted in a 4-fold increase in aquatic vegetation, such as grasses, improving the Bay’s ecosystem.     Article

Upcycling manure into paper products. Cellulose recovered from a variety of manures, including elephant, can be used to make paper or other products.     Article