Tag Archives: carbon

Watching Grass Grow

Thank you to all of you who take the time to ‘like’ or read or view my blog postings.  Goodness knows, some of them are pretty specific to ranching and farming, but since we all eat then, perhaps in a small way, nearly all of them relate to all of us – so, just maybe not really interesting.  These videos are great illustrations of why growing grass, then properly managing it for optimum animal, soil, forage, water, and ultimately human health is so important.  If you are into the carbon credit, carbon sink, carbon sequestration thing, this is the heart of the matter.  So, here we go…..!  Thanks to On Pasture for finding and sharing great information.

Let’s Watch Grass Grow!

By   /  January 20, 2020  /  1 Comment

    Print       Email

You know how we always tell you that leaving more leaves of grass results in quicker recovery, and quicker recovery means more forage for your livestock?  If you’d like to see that in action, here some videos you’ll like.

This first video is a comparison of the difference in response between Orchard grass continuously grazed to about 1″ height and rotationally grazed Orchard grass left at 3.5 inches tall. It’s taken over a 5 day period.

Here’s the last picture in the series to give you a closer look:

This second video does the same comparison with tall fescue. The grass on the left was grazed continuously to 1″. The grass on the right was rotationally grazed to 3.5 inches.

Again, here’s the final picture in the time-lapse:

It’s also interesting to compare the responses of different grasses. This last video compares Orchard grass on the left to fescue on the right. Both were “grazed” to 3.5 inches once a month. The video takes place over 7 days.

Here’s the last picture from this time-lapse series:

What kind of ideas do these videos give you?

Of course, time of year that grazing occurs and the amount of rest between grazings all factor in to the complex task a grazier has of managing stock. For more, check out this two-part series from Dave Pratt about grazing heights, rest and recovery times, and seasonality.

This picture links to an article by Dave Pratt talking about why it is one of the most important words in a grazier’s vocabulary if you want to build capacity on your farm or ranch.

This week he applies his principle of “leaving more leaves” to show how this works as forages change through the growing season.

    Print       Email

ABOUT THE AUTHOR

Publisher, Editor and Author

Kathy worked with the Bureau of Land Management for 12 years before founding Livestock for Landscapes in 2004. Her twelve years at the agency allowed her to pursue her goal of helping communities find ways to live profitably AND sustainably in their environment. She has been researching and working with livestock as a land management tool for over a decade. When she’s not helping farmers, ranchers and land managers on-site, she writes articles, and books, and edits videos to help others turn their livestock into landscape managers.

1 COMMENT

  1. CURT GESCH says:

    The photo time lapse sequence is great: clear and convincing (if we needed any convincing). It’s also something we could do at home in pots, but maybe better than that in a field with a rest for a stationery camera. I would like to see 1″ versus 6″ on Orchard grass. Maybe I’ll try to set it up?

 

img_7568
Mob stocked paddocks with heavy utilization followed by a long rest.  Proven practice that builds soil, forage diversity, healthy livestock diet, deep roots providing protection against soil erosion of all types.  View of Fundo Panguilemu.
img_7559
Proper land management results in this sward!  My camera does not do justice to the beautiful example coaxed by Jose and Elizabeth, (owners of Fundo Panguilemu), with the use of their cattle and sheep.  Contact Jose in Chile to help develop your plan or in the States, Jim Gerrish, American Grazinglands Services, LLC
80095777_2736820309878769_4123042271991955456_o
This kind of grazing management (short duration mobbing, long rest period) is what creates magnificent sward of healthy soil and forage.  Thanks to Elizabeth Barkla de Gortazar for this illustrative photo.
img_7561
No bare soil here!
img_7673
A luscious sward for beauty and health.

Feeding Hay to Improve Your Land – Part 6

Feeding Hay to Improve Your Land – Part 6

By   /  April 1, 2019  /  1 Comment

    Print       Email

This is the last part in Jim’s series. If you missed any part, here are links to catch up: Part 1,Part 2Part 3Part 4 and Part 5.

Hay is more Carbon (C) by dry weight than anything else. When we feed hay we are also adding carbon to the soil in addition to the Nitrogen (N) and Phosphorous (P) discussed in the earlier posts in this series. Adding carbon increases the water and nutrient holding capacity of the soil through increase in soil organic matter.

How much carbon do we add to the soil with hay feeding?

Let’s do the math.

Hay is typically between 40-50% Carbon depending on plant maturity at harvest time. Some of this C is in cells as soluble sugar or other easily digested materials. The bulk of the C is in plant fiber that varies in degree of digestibility.

What’s left behind after feeding is a combination of unconsumed plant material and dung and urine. Both are important contributors to soil health.

Unconsumed hay is intact plant material that helps provide the ‘armor’ on the soil. During the growing season we refer to litter cover on the soil surface. Hay residue provides the same benefits to the water cycle as plant litter.

The consumed part of hay that is not digested comes out as manure. We have already discussed the N & P values of manure and urine following hay feeding. Whereas we can add too much N or P to the soil through excessive hay feeding, it is almost impossible to add too much C.

The digestible part of the hay is utilized by ruminant livestock as their primary energy source. Maintenance quality cow hay may be as low as 50% digestibility while high quality ‘calf hay’ may be close to 70% digestible. The C from digested material is incorporated into body tissue or expelled as CO2.

It is the non-digested plant material that contributes to building soil organic matter through dung returned to the soil. Manure on the ground does not contribute a lot to ‘soil armor’, but it contributes to feeding soil life.

The rate of manure breakdown is largely driven by digestibility of the residual fiber. If rumen microbes could not quickly digest it, soil microbes aren’t much faster. Manure breaks down much more quickly in warm-wet environments compared to cold-dry environments.

Hay residue left on the ground will ultimately contribute to soil organic matter. Many people have the bad habit of wanting to burn residue piles in the Spring. Please, do not!

These piles become enriched soil organic matter sites and can be above average production areas for years to come. Burning piles sends most of the valuable C into the atmosphere.

While in the first year following feeding there may be some weeds grow up on these piles, most of those weeds are making a contribution to soil development or get grazed by the livestock during the growing season.

The bottom line is, each ton of hay fed will contribute about 400 to 600 lbs of C to the soil as either hay residue or manure.

That is a valuable addition to your land. Make the most of it!

 

This is the last part in Jim’s series. If you missed any part, here are links to catch up: Part 1, Part 2Part 3Part 4, and Part 5.

 

Support the Publication That Supports You!

If you find value in what we’re doing, if you’ve used what you read here to be more successful and profitable, then please send support during our Spring Fund Drive.

Sponsors Are Critical to On Pasture’s Health!

If you’re an organization that supports good grazing, you can sponsor On Pasture as well. Sponsors help make sure that great information is always available to help farmers and ranchers be the best they can be.