Tag Archives: animal manure management

01Feb/18
Manure being applied in the corn field, using a drag-hose system.

Can Manure Improve Soil Health?

Is there a correlation between soil health (or soil productivity) and manure? A Missouri team analyzed many soil health related variables and manure land application details, based on data collected under the Missouri Cover Crop Cost-Share Program and experimental plots. Continue reading

01Dec/17
Value of beef open lot manure assuming crop benefits from potassium supplementation and 5% increase in yield. Estimated manure value is $28/ton.

What is the Economic Value of Manure?

Manure has value.  That value may result from improvements in soil quality, increases in yield, and replacement of commercial nutrient required for crop production.   Previous articles on manure’s value have focused on its soil health,  environmental benefits, and tools for estimating manure’s value. This article will focus on the economic benefits of manure. Continue reading

01Nov/17
Photo of rainfall simulation study

Setbacks Reduce the Concentration of Manure Constituents in Runoff

What setback distance is required to reduce the concentration of manure constituents in runoff to background values? John E. Gilley, Aaron J. Sindelar, and Bryan L. Woodbury, researchers with the USDA-Agricultural Research Service, examined the effects of setback distance on concentrations of selected constituents in runoff following land application of beef cattle manure to a site in Southeast Nebraska (Figure 1).  Continue reading

03Oct/17
photo of sand recovery system in Iowa

Can application of sand laden manure impact soil texture?

What does soil texture have to do with manure? Sand bedding has become a popular choice at many dairies due to the cow comfort and health benefits it offers. A question raised at manure application time is how does sand in the manure impact the health of my soils? While using sand laden manure as a fertilizer source does add sand to the soil, the change is small and would take about 100 years for a silt loam soil to see a change in soil texture. Continue reading

01Aug/17
A recently added aggregate of livestock manure (left) versus a heavy soil aggregate of poor structure on the right.

Soil Organic Matter and Its Benefits

Soils of Northern Great Plains are relatively young (11000 to 14000 years old) and have some of the highest organic matter levels (4 to 7%) of all mineral soils in the United States (Overstreet and DeJong-Huges, 2009). However, continuous cropping, poor management practices and loss of topsoil have adversely affected the soil organic matter levels. Continue reading

03Jul/17
soil with earth worm

Manure Impact on Soil Aggregation

If manure increases formation of larger (macro) and more stable soil aggregates, several benefits may result for fields fertilized by manure compared to commercial fertilizer including:

  • Reduced runoff and soil erosion;
  • Increased water infiltration into the soil possibly leading to greater drought tolerance; and
  • Partial offsetting of higher soil P levels resulting from manure application and limiting P loss to local surface water.

Continue reading

01May/17

Manure and Soil Health Presentations Bring Experts, Give Voice to Wondering Minds

Farmers and ranchers are becoming increasingly aware of the importance of soil quality/health to the productivity and sustainability of their agricultural system. Research and field observations have demonstrated that carefully managed manure applications can contribute to improved soil quality with limited environmental and social risks. However, a comprehensive assemblage of outputs and conclusions from research studies, field trials, soil labs databases, and other sources has never been developed. Continue reading