Albrecht system of soil management (in grassland)

Phil_Chris

New Member
Quick search here reveals lots of interest and some questions. For TFF members in north west and midlands, two exponents of this system in grassland are speaking at farmer meetings the week after next (Tue 24th, NW Lancs; Wed 25th, Staffs).

If you're interested but unable to attend, please post your unresolved questions here and I promise to (i) put the questions to the two gentlemen, and (ii) strive to explain their responses here. Meanwhile, here's the press release (no product mentions so fingers crossed our moderator allows this) including how to book a place:

Attention to soil health offers big livestock payback

Livestock farmers who can match their progressive arable counterparts in improving soil health can expect markedly higher grassland and animal productivity as a result. That's according to Derbyshire dairy farmer Dave Lievesley, who is working with Envirosystems UK to close the livestock-arable knowledge gap and help this take place.

Together, they have arranged for New Zealand farmer and global leader in this field David Law to visit the UK and address farmer meetings in Lancashire and Staffordshire on Tue 24 and Wed 25 January.

Information about Mr Law's approach can be found at forwardfarming.co.nz. Details of the two meetings are available at envirosystems.co.uk and farmers can book places with the company on 01772 860085.

- oOOo -

Additional information [c.280 words]

In arable farming, healthy soils are all the rage for very good reason, according to Envirosystems applied biologist Sally Russell. "They produce more plant life and higher yields of saleable crop," she says. "The same applies not just to grassland reseeds, but permanent pastures too. It's just less obvious."

Good soil health depends on a below-ground population of micro-organisms. In a typical soil, one hectare contains about 50 tonnes, mainly worms, eelworms, bacteria and protozoa.

Above ground, Sally Russell points out that a hectare will support about two dairy cows. Under their feet, the amount of microscopic soil livestock is equivalent to about 67 cows. Without these microbes, she suggests the two cows above ground would not get fed.

"This is why soil health is becoming a hot topic in grassland farming, where one factor with an important impact is spreading slurry. Too often during storage, fibrous material floats to the surface and forms a crust, through which light and oxygen cannot penetrate. Below this, small particles sink and form a sludge at the bottom, with a liquid portion above it."

In a zero oxygen environment, anaerobic microbial activity creates acidic, septic and foul smelling conditions in both the liquid and sludge layers. Spreading this does contribute plant nutrients and organic matter to soils, but it also inoculates them with a high loading of potentially damaging anaerobic microbes, washed into the ground as an acidic soup.

In contrast, Sally Russell reckons it is possible without mechanisation to maintain oxygenated conditions in slurry, break up a crust or prevent one forming, and create uniform consistency from surface to the bottom. This means minimal stirring before spreading, reducing workload and fuel consumption involved.
-ends-​
 

DB67

Member
Location
Scotland
We use it and it's a great method imo. I know the traditional boys aren't that keen on it though but we've seen big improvements since using it.
 

Phil_Chris

New Member
We use it and it's a great method imo. I know the traditional boys aren't that keen on it though but we've seen big improvements since using it.

Where/how did you acquire the necessary knowledge? How long did it take? If there's any aspect of your experience that you're prepared to share with farmers attending these meetings, please let me know and I'll pass it on. Happy for you to email if your prefer.
 

DB67

Member
Location
Scotland
Where/how did you acquire the necessary knowledge? How long did it take? If there's any aspect of your experience that you're prepared to share with farmers attending these meetings, please let me know and I'll pass it on. Happy for you to email if your prefer.

PM
 
Is there any chance that this will be recorded?
Hi marco and holwellcourtfarm, Alan Powell the producer of Farming Sunday is filming the Staffordshire field day at Spot Actre Farm on Wednesday and this is set to be broadcast during their Spring series. I will let you know the broadcast date for this when we find out. Alan has offered for us to use the video footage that he's taking so we will be happy to share this with you. We are also taking video clips of the speakers and farmers each day with selected questions, so please let us know if you have any questions on here and we will ask them. Thanks, Sally
 
Shame they couldn't have had a meeting down south as well.
Hi barleycorn, sorry about that - the farmer that was lined up in the South West couldn't host in the end this Jan. There is something taking place in Somerset with David Law this Thursday, so if this is of interest call 01772 860085 for the details. Next time we will make sure we prioritize the South ! Let me know if you'd like to see the footage form the Staffordshire meeting too. Thanks, Sally
 

marco

Member
heres the extract from the second article,

1. There is no such thing as an ideal ratio of Ca, Mg and K in terms of plant growth or in terms of soil quality.

2. The concepts of soil pH and soil acidity have changed over time. This idea that the best soil pH is 7.0 is no longer tenable.

3. Calculating a Base Saturation percentage using CEC measured at pH 7 grossly underestimates the true proportions of soil nutrients.

4. Basing fertilizer advice on BCSR results in misleading advice,



The science is clear and one of the best reviews of the flaws in the BCSR is given by Kopittke and Menzies (2006) from the University of Queensland - the abstract of this article is given below. Access to the full paper requires a subscription to the Soil Science Society of America Journal.



A Review of the Use of the Basic Cation Saturation Ratio and the “Ideal” Soil

Peter M. Kopittke and Neal W. Menzies

Soil Science Society of America Journal, Vol. 71, 259-265, 2006.

Abstract

The use of “balanced” Ca, Mg, and K ratios, as prescribed by the basic cation saturation ratio (BCSR) concept, is still used by some private soil-testing laboratories for the interpretation of soil analytical data. This review examines the suitability of the BCSR concept as a method for the interpretation of soil analytical data. According to the BCSR concept, maximum plant growth will be achieved only when the soil's exchangeable Ca, Mg, and K concentrations are approximately 65% Ca, 10% Mg, and 5% K (termed the ideal soil). This “ideal soil” was originally proposed by Firman Bear and coworkers in New Jersey during the 1940s as a method of reducing luxury K uptake by alfalfa (Medicago sativa L.). At about the same time, William Albrecht, working in Missouri, concluded through his own investigations that plants require a soil with a high Ca saturation for optimal growth. While it now appears that several of Albrecht's experiments were fundamentally flawed, the BCSR (“balanced soil”) concept has been widely promoted, suggesting that the prescribed cationic ratios provide optimum chemical, physical, and biological soil properties. Our examination of data from numerous studies (particularly those of Albrecht and Bear themselves) would suggest that, within the ranges commonly found in soils, the chemical, physical, and biological fertility of a soil is generally not influenced by the ratios of Ca, Mg, and K. The data do not support the claims of the BCSR, and continued promotion of the BCSR will result in the inefficient use of resources in agriculture and horticulture.


the ca mg ratio that most have settled on is now 68ca 12mg, but this varies according to soils, i.e low cec sandy soils will need more mg for soil structure and so might need to be at 62ca 18mg the same with heavy clay high cec soils might need to be 70ca 10mg. there is no one standard prescription.

2. anyone i know working with the albrecht system states that the ideal ph is 6.4. I don't know where he got 7 from? maybe its in albrechts early works, but as we know with experience things can change over time.

3. Once again we know this, and pretty much every one is currently using tec or total exchange capacity for their recommendations, but then i suppose they wouldn't have been able to bad mouth it and say its nonsense if they had acknowledged the use of tec.

4. refer to point 3.

I'm a livestock and tillage farmer and even i can see that the basic premise for for this article is structured so that it makes sense but the points that he is setting his argument up from is flawed.

I've done albrecht tests here (the modern version) and find find them highly helpful. deficiencies and imbalances found on the tests have directly correlated with animal health problems and cereal deficiencies. none of which "conventional" soil samples would have helped me with.

So forgive me if i plough on like a loony. But when you see big increases in livestock health as i have i know which path i'm going down.
 

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