October 13, 2010
Challenges to Implementing BMPs on a Farm
August 20, 2010
Getting a Farmer's Attention
August 11, 2010
eXtension - A Great Resource
- Community - master gardening and entrepreneurship
- Disaster Issues - floods, oil spill, wildfires, and agrosecurity
- Energy - farm and home
- Family - child care, food and fitness, care giving, food safety, parenting, and personal finance
- Farm - manure management, bee health, beef cattle, dairy cattle, corn and soybean production, cotton, goats, horses, organic, and small meat processors
- Pest Management
- Youth
July 16, 2010
Rain!!
May 18, 2010
No-Till Manure Injection
The above video was taken by Jeff Graybill, Agronomy Educator in Lancaster County, of shallow manure injection into a no-till field of corn. This is new technology being tested on a corn field in Southeast Pennsylvania. If the rain stops corn will be planted on this field soon.
Normally on no-till fields manure has to be broadcast so as not to disrupt the soil, but broadcasting manure results in a significant loss of nitrogen from the manure into the air as ammonia. Injecting manure into the soil is a better option to avoid the loss of nitrogen to the air, but normal injection works up the soil and increases the risk for sediment loss.
It sill be interesting to see how the subsequent corn crop reacts to this type of application. I'll keep you posted as the season progresses.
April 9, 2010
March 3, 2010
Can We Really Clean Up an Impaired Watershed?
February 12, 2010
Snow, Snow, and More Snow!
November 2, 2009
Water and Poo...

Although I try to not get too deep on this blog the link below to a YouTube video is a nice break in an otherwise rough year. The farmer who put together this video has a lot of other links on, and is doing a great job of getting his message out to a new audience. I commend him for taking the time and effort to try to educate folks in a way that will get their attention without being controversial.
http://www.youtube.com/watch?v=SAUw9GO6tgE&feature=channel
October 6, 2009
Manure Application
What environmental challenges are associated with land application of manure?
Land application of manure presents both systemic- and short term challenges. Under the current agriculture structure in Pennsylvania in which large quantities of feed are imported, farmers do not have an adequate amount of land to assimilate the sheer volume of nutrients on the farm and balanced cycling of nutrients cannot be achieved. The net result is an over abundance of nutrients in soils, presenting near term and long term challenges for ongoing farm production and a reservoir of nutrients that can move across- and through the soil via surface- and groundwater to local streams and rivers.
What are the benefits of no-till vs. tilled soils?
No-till practices offer several benefits to soil health over conventional tilling.
• Soil erosion and nutrient loss from erosion is reduced
• Soil quality is improved
• Biological activity in soil is higher
• Soil surface residue is retained
However, no-till practices are at odds with the environmental benefits of incorporating spread manure into the soil. Incorporating manure into the soil:
• Reduces ammonia volatilization
• Reduces runoff of water-soluble phosphorous
• Decreases odors.
How can the best of both no-till and manure incorporation be achieved?
New technologies have been developed that incorporate manure while still retaining the benefits of no-till practices. These technologies deposit manure into the sub-surface with minimal disruption to the soil and include a shallow disc injector, high pressure manure injector, and aerator with banded manure. Use of these practices can reduce ammonia emissions, odor, and loss of water-soluble phosphorous as well as maintain the soil health associated with no-till practices.
Related Resources
View the “Water Quality-Land Application” epi¬sode of Manure Du Jour on the Penn State Agriculture and Environment Web site: aec.cas.psu.edu/news/webinar_archives.asp
September 3, 2009
No-till and Carbon Sequestration

No-till farming is when crops are planted in the spring over the residue of the previous years crops with no tilling of the soil. It has been promoted as a way to reduce sediment loss into streams and rivers, and it has been very successful.
However, reducing sediment loss is not the only positive consequence of no-till crop production. Fields under no-till management tend to lose less carbon to the atmosphere compared with fields that are tilled yearly. No-till farming practices also use less fossil fuels and fertilizer compared with traditional tillage.
These carbon sequestration benefits are gaining the attention of law makers as the cap and trade bill moves through congress. The idea behind the cap and trade bill is that if you do something (i.e. no-till farming) that reduces carbon in the atmosphere you earn an offset that can be sold to someone else that either can't, or won't, reduce their own carbon emissions. No-till farming is not the only solution to reduce carbon emissions, but it is one that can benefit both farmers and the environment.
The following is a link to a radio segment that addressed no-till farming.
http://www.npr.org/templates/story/story.php?storyId=112496096
September 1, 2009
Try to Avoid "Juicing" Silos

Corn is soon to be chopped for silage and with the wet weather this summer many farmers will experience "juicing" of new silage. Juicing, or leachate, is worse when silage is put up too wet and with the wet summer it will take a long time for corn to dry down. Regardless of the amount of leachate, it needs to be managed to avoid negative environmental impacts. Silage leachate is a serious threat to surface and ground water quality due to its high concentration of nutrients. One gallon of leachate can lower the oxygen content of 10,000 gallons of river water to a level that is difficult for fish to survive. Also, the high ammonia and nitrate concentrations in silage leachate can lead to algae blooms, which can further reduce the oxygen concentration in lakes and streams. Silage leachate is also very acidic and can burn the grass in the surrounding area, increase the acidity of bodies of water, and corrode concrete and metal structures. All farms, regardless of size, are regulated under the water quality laws, which means all farms need to control pollutants (i.e. silage leachate) that runs off their farm into streams and other surface waterways.
Since some silage leachate will occur, it is important that there be a system to divert it away from surface water and well heads. Leachate and any contaminated rain water should be captured and diverted into a lagoon or a filter strip. Leachate that has been collected can be treated to make it less caustic to water resources by dilution with clean water or manure, neutralization with hydrated lime, aeration, and simply storing the material will help to reduce the potency of the leachate. Field application is the best method to dispose of leachate, but care should be taken about when, where, and how it is spread so that damage is not done to the plants in the field or to surrounding environment.
Management practices that help reduce silage leachate also result in better quality corn silage for your cows because leachate contains nutrients like water-soluble carbohydrates, proteins, and vitamins that could be going into your cows instead of the stream. With corn silage being the major component in many rations it is important that care be taken to produce a good quality feed and in the process prevent the potentially negative environmental impact of silage leachate.
What is Dry Matter and Why is it Important?

Knowing the dry matter concentration of any wet feed is something every producer should know.
Determining the dry matter concentration of wet forages is one of the most basic, and arguably the most important things to measure in wet forages and can be easily done on the farm. The Benefit to measuring the dry matter concentration on farm is that it is quicker than sending it to a lab, and the quicker the ration is adjusted to the new dry matter concentration the more accurate the ration.
Once the dry matter is determined, the ration needs to reflect any changes in the value. For example, if corn silage dry matter changes from 35% dry matter one week to 30% dry matter the next week, but the ration is not adjusted to reflect that change, crude protein concentration of the diet will increase from 15.8% to 16.3%. In this example, the cow will be getting more protein and nitrogen than she needs, and the excess nitrogen will end up in the urine potentially leading to air and water pollution.
Excess nitrogen and phosphorus are major contributors to water quality concerns of the Chesapeake Bay. Conversely, if the dry matter of the corn silage increased from 30% to 35% and the ration is not adjusted the cows will be getting less energy and protein than they should be because increasing the corn silage will dilute out the rest of the ration. This could lead to a decrease in milk production, which is never a good thing.
Formulating rations to the cow’s requirement and then mixing that ration as close as possible to what is on paper is necessary in order to reduce nutrient losses to the environment and maintain a consistent high level of production. This becomes very difficult to do when the dry matter of a large portion of the ration is not known accurately. So get out there and start weekly testing of your feeds!