Showing posts with label Holistic Grazing. Show all posts
Showing posts with label Holistic Grazing. Show all posts

Friday, 11 November 2011

Regenerative Agriculture & Holistic Grazing Management


What has Regenerative Agriculture got to do with UK pasture based dairy farmers?
I think regenerative agricultural technologies have a lot to offer experienced pasture farmers who understand grazing management principles. I liken it to the best chefs who after having a classical training can go on and create the most amazing dishes. The same with classically trained singers & musicians, once they have mastered their craft they can go on to produce the most imaginative & creative music. So it is with grazing, soil, & water management….first you master the classical training then you use those skills to be creative. In this case it is to create topsoil & to control water & water flows on your farm. 
Regenerative agriculture is an opportunity to move beyond sustainability to become regenerative & to rebuild the biological capital on your farm. During the industrial agricultural revolution food production yields have raised, efficiency of yields has improved but at what cost to the environment & soil in particular soil carbon. Holistic grazing involves mixed pastures with many deep rooting species being grazed at much higher pasture covers. The concept is to feed both the cattle & the soil. 
So Who Are the Movers & Shakers?
In this new approach several American names stand out as leaders….Allan Savory, http://en.wikipedia.org/wiki/Allan_Savory
 http://www.holisticmanagement.org/    Gary Zimmer, Abe Collins & ofcourse the very well known Joel Salatin. http://www.polyfacefarms.com/
Many YouTube clips give a very good idea of how Joel Salatin’s grazing operates & how he thinks.
Joel has become a writer of many best selling books with intriguing titles like “The Sheer Ecstasy of being a Lunatic Farmer”. How could you resist a book like that?

However its not really that new…..nothing is, is it? And it’s closer than I ever imagined. A Pasture to Profit Discussion group member on the Cotswolds is a direct descendant of the Scottish landowner Robert H Elliot, 1898, who created & wrote about his system of farming that involved laying down land to grass, using deep rooting pasture species & grazing cattle to rebuild the topsoil, to better use water & to increase the biodiversity.
http://en.wikipedia.org/wiki/Robert_Henry_Elliot    Robert H Elliot’s book “The Clifton Park System of Farming” sets out his key principles.
In Australia, P A Yeomans during the 1930s developed a system of on farm water flow management & regeneration way before his time with a concept called “Keyline management” http://en.wikipedia.org/wiki/P._A._Yeomans
Keyline systems are designed to move water about a farm landscape to get the maximum about of pasture growth. It’s an incredibly clever concept that is amazingly simply but highly effective. The key objective is to control water flow across your farm. The core essence is to enhance the agricultural landscape with trees & pasture being grazed by cattle.
What is central to all of the above agricultural innovators & their systems for enhancing the environment & rebuilding topsoil is that the grazing of pasture with cattle. Many current day environmentalists/climate warming spokespersons quite wrongly think cows & cattle are a problem to the environment NOT the solution.
This is fascinating stuff & quite challenging to much of what is practiced on low input pasture farms…..that’s why you are the most qualified to take up & implement either all of or most of the principles of holistic grazing management. If you are a non believer that’s fine “I’ve never learnt anything from someone who always agrees with me”.
If I have reservations myself it relates to how this thinking can be exploited in high rainfall areas……..as it is being most successful in dry or even arid environments. The principles are however very important & universal. Several P2P group members are already experimenting & as with all pioneers (they are the guys with arrows in their backs in case you dont know how to spot them!)  it's not plane sailing but at least they are "having a go Mate!" which is fantastic for all of us. We need to focus on increasing soil carbon.
RegenAG are running courses in the UK with Darren Doherty from Australia & during 2012 there will be holistic grazing management workshops & Joel Salatin is coming over to run a 2 day workshop in either Nov or Dec 2012. You will need to register your interest now for that course.
This will be my last UK based blog for three years as I’m returning to NZ to take up a University post with the new “Centre of Excellence in Farm Business Management ” at Massey University. So the next blog will come from Palmerston North, NZ.
Current UK Pasture Measurements
TheAverage Pasture Cover (kgsDM/ha) & Pasture Growth (kgsDM/ha/day)
North Wales, AFC 2111, growth 20 still VG grazing conditions
Shropshire, 1850, growth 30, cover increasing
Shropshire, 2000, 45 day round, 40% dried off
Herefordshire, 2150, gr 18, de 20, soil temps 12, Now OAD pulling plug on 22nd Nov.
Herefordshire, 2219, gr 22, de 16, cows in by night, grazed 65% of farm since 1st Oct.
Dorset, AFC 2003, growth 20
Devon, AFC 2400, growth 30
East Sussex Cows in, pasture still growing in mild temps, Could be a good early turnout Jan/Feb in South East.
Cornwall, AFC 2480, gr 36, de 39, Awesome year!!!
Northern Germany, AFC 1925, growth 7, last 10 days grazing its been a very decent year!
My thoughts are with our friends in the Breton Group in France as Odile is going thru a rough patch. Our best wishes are with Alain & Odile, who are amazing people & wonderful friends!

Friday, 17 June 2011

At Last it has Rained on Pasture Based Dairyfarms in the UK

It has rained! Photo I know this either doesnt look like a drought or I am putting mouth watering images on the blog..actually it was taken on the Somerset levels which is very heavy low lying country...but it does look seriously good doesnt it! Many of the pasture based dairy farms this week received 20-30mm of rain. It is a huge relief for everyone that it has rained. Hopefully we will get much needed follow up rain.
Most parts of the UK & many areas within the EU have had a long prolonged period of very dry conditions with very little rain. Look at the Spring 2011 graph for rainfall on the Metoffice site below.
http://www.metoffice.gov.uk/climate/uk/anomacts/
It is very important that pastures get time to recover.
There are three important points to make now about grazing management:- Grazing rotations need to stay long until pasture plants have had time to let the parched root systems to recover. Photosynthesis needs water. Photosynthesis is the chemical process driven by light that converts CO2 to plant sugars & carbohydrates. However this process requires water. During the dry months the pasture plant root reserves (read carbohydrates) have been run down. Once water is again available the pasture plants are able to regain strength & build up root reserves. Once the roots have recovered energy reserves fresh leaf growth follows. If you don’t allow the pasture sward this “recovery time” or as Alan Lauder calls “Strategic rest” after rain you will impact severely on total pasture production. This is a timing issue. Carbon Grazing is an Australian concept from a very low rainfall area of Queensland but the basic principles are applicable here after a long unusual dry period.
http://www.carbongrazing.com.au/
The second point is another really important grazing principle….when growth is slow grazing rotations need to be long. This is a feed budget issue associated with ryegrass plant growth to the 3 leaf stage. To keep the pasture grazing wedge intact you must keep the grazing rotation long until we are back to a normal season.
The last point to make is that after rain the dry matter % of pasture will fall. Pretty obvious perhaps but this will alter pasture plate meter readings. Photo-Brent Stirling from Cropmark NZ checking heading on a Matrix field in England. In fact the DM% changes daily dependant on sunshine, cloud cover, wind & rain.
Andre Voisin was a French born intensive pasture grazing researcher. He pioneered the concept of the S growth curve which is well known to all pasture based dairy farmers.
http://grassbasedhealth.blogspot.com/2010_06_01_archive.html
Today there are farmers like Abe Collins in the USA who are now pushing this concept even further with Holistic Grazing concepts.
http://newfarm.rodaleinstitute.org/features/2006/0606/grazingtall/collins.shtml http://www.youtube.com/watch?v=7Ix3JO2yo7s&feature=related Joel Salatin has many videos on YouTube that promote a similar approach to grazing & grass fed food. http://www.youtube.com/watch?v=PT8y6T9wxuo&feature=related
Regardless of who you follow of these new pasture grazing gurus they are all working on the same basic principles of pasture growth & pasture resting…..its the timing that is being debated worldwide…..long may the debate continue!!
Chicory & Plantain Herbal Pastures Talking of timing………….the timing for grazing of chicory & plantain pastures is critical to the success of those pastures. The first grazing must NOT occur until there are fully 6 leaves per plant (again this is about the plant building root reserves/energy storage). Now that we are in the growth season for these herbal pastures you must keep on top of them to stop flowering & stem elongation. Target pre grazing covers should be 25-35cm & post grazing residuals should be 5-10cm. Cows will readily graze lower than 5cm but this must not be allowed to happen.At pre grazing heights of 25cm assume total yields of 3000kgDM/ha. A post grazing residue of 5cm will mean the cows have harvested 1500kgsDM/ha. To stop the chicory bolting pre grazing heights of 50cm should not be exceeded. Current UK Pasture Measurements

Pasture growth still very variable dependant on rain. The dissappointing thing is the cold air temperatures & lack of sunshine. Average Farm Covers increased slightly this week post rainfall.
TheAverage Pasture Cover (kgsDM/ha) & Pasture Growth (kgsDM/ha/day)
South Ayrshire, Scotland, AFC 2380 & pasture growth 85
Dumfries, Scotland, AFC 1900, gr 40, demand 45 constant rain but very cold
Cumbria, 2225, growth 62
Derbyshire, 2151, gr35, demand 65, 17mm rain
Herefordshire organic, 2214, gr45, demand 40 rain during week 36mm
Somerset organic, 1900, gr 25, demand 33 rotation 35 days
Dorset 2450, gr80 & demand 45 good rain but grumpy cows???
Dorset organic, 2100, growth 39, Silage fields now back in rotation,reygrass heading
East Sussex Organic, 1508 cover, growth 23 up on last week, lots of rain
Devon, 2220, gr55 feeding silage
South Kilkenny, Ireland, AFC 2039, gr55, demand 49 cover increased this week
Fish Creek, Gippsland Victoria,Australia AFC 2700, growth 32 approaching calving