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Put the land first… and everything else will follow

Rotational grazing setup uses 16, eight-acre paddocks that cattle move through on four-day intervals

When Brian Harper first witnessed high stock density or “mob” grazing, his reaction was “there is no way I am moving cattle two to three times a day.”

Yet the beneficial impact on the land from this approach ultimately convinced Harper that it could fit into their operation.

He had already seen an improvement when moving from continuous to rotational grazing. “Some of it was by accident in places where we had gathered cattle in a small space for a short time and then left it. The response of the grass was significant,” he recalls.

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Their management philosophy based on improving the land led the Harpers to recently being awarded The Environment Sustainability Award (TESA) by the Canadian Cattlemen’s Association at the Canadian Beef Industry Conference in London, Ont.

Since the mid-’90s Brian and Sonja Harper, and children Thomas and Kristelle, have operated a perennial forage/rotational grazing system on their 500-acre operation in southwestern Manitoba, just outside of Brandon. The soil is light sandy/clay/loam. Along with the grazing strategy they had added water with offsite troughs and pipelines to better utilize the forage and planted over 5,000 trees. The objective was to keep the cattle on the land as long as possible.

In 2014 the Harpers had the opportunity to participate in a Commission for Environmental Co-operation (CEC), Ducks Unlimited, and Manitoba Forage and Grasslands Association project with Michael Thiele, grazing club co-ordinator. Neil Dennis from Wawota, Sask., was assigned as their mentor. Under his guidance the Harpers intensified their adaptive grazing, gathering benchmark data and monitoring their results. The goal was to focus on soil health.

The initial rotational grazing setup consisted of 16 eight-acre paddocks that the cattle moved through on four-day intervals. Using temporary poly wire fences, paddocks were further subdivided into one-acre parcels for a total number of 112 paddocks. With this setup their target for production was raised from 60,000 pounds per acre to between 120,000 and 160,000.

“With management of time and use of animal/stock density as a tool we are improving the water and nutrient cycles on our soils,” explains Harper.

The Harpers use high-stock density as part of their grazing strategy. In this photo there are 70,000 pounds of beef per acre.
photo: Supplied

They use a short graze of a few hours to a day followed by a 60- to 100-day recovery. Their aim is to graze about 50 per cent of the forage and have the cattle trample the remainder as cover and food for the soil. The deeper roots grown during a long recovery provide water infiltration into the soil profile resulting in less rainfall running off. “It is not about how much rainfall we receive, but how much can we retain,” says Harper.

Deeper roots also exude sugars into the soil providing the biological life forms with what they need to exist, he adds.

“High animal density also grows higher quality forage. Animal performance and health improves symbiotically with soil regeneration.”

They monitor the quality of the grass using a portable refractometer to take Brix measurements and noticed an improvement almost immediately. The Brix level indicates the amount of sugars in the plant.

In three years, Harper says, they have managed to increase annual beef production off the same 130 acres by 9,000 pounds with little-to-no extra work. They use automatic solar-powered Batt Latch gates that open at a pre-set time without anyone needing to be on hand.

Michael Thiele says the results the Harpers have achieved are impressive. They have increased soil carbon sequestration at a rate of 7.5 tons/acre/year and increased the level of beneficial bacteria and fungi, thus improving the ratio of fungi to bacteria in the soil. They increased the soil mineralization of nitrogen and phosphorus, and as a result, increased the amount and quality of the forage production. This in turn, produced more beef per acre and increased their profit level, all while improving the wildlife habitat on their farm. One bird study showed almost two times more species of birds and a five-fold increase in the bird population.

Harper’s 80-cow herd contains Devon, Lincoln Red and Shaver Beefblend genetics, three breeds with grass finishing genetics. He stresses the importance of the right type of genetics for their program. They market forage based breeding stock and are starting to market grass-finished beef direct to consumers. Their daughter Kristelle heads up the marketing side of this enterprise.

Bale grazing is their winter feeding strategy, moving the fence to give the cattle new feed every 21 days. Harper likes bale grazing because he feels that in addition to giving him more time for the things that matter during the winter, it also improves the land by working some litter, manure and urine back into the land.

The Harpers recently began incorporating cover crops into land regeneration management by inter-seeding into their pastures using a John Deere 1590 conservation drill. The seeding follows severe grazing at the beginning of the growing season to put some stress on the perennials and allow for establishment of the annuals which are seeded in the middle of June.

Due to extreme dry conditions this year the results have not been what they had hoped but they want to continue trying. Harper thinks a mix of oats and peas at a rate of 70 pounds per acre would be sufficient even though they used more species this year. This strategy provides options of grazing or harvesting a crop and enhances plant diversity.

The Harpers aim to graze 50 per cent of the forage and trample 50 per cent to create soil armour and nutrients for the livestock below ground.
photo: Supplied

Through their intensive grazing and continual quest for knowledge the Harpers were coming in contact with many holistic management (HM) practitioners. They attended some workshops and in 2015 took HM training from Don Campbell of Meadow Lake, Sask. Harper says he learned the financial and people side of an operation is important. “Managing the grass and cattle is the easy part. It’s the other two legs of the stool that are hard,” he adds. “Increased production while at the same time decreasing costs definitely helps the financial side of things.”

The results speak for themselves and Harper is excited about the prospects of not only improving but also building the soil. “We can build soil quicker from beneath than we can on top. Building organic matter is actually the decaying of biology below the soil surface. Feed the soil and everything gets better.

“I used to go into my pastures looking for the biggest calf and being proud of it, and now I am looking at the manure and trampling of the plants, realizing that cattle are just a tool. I look at a different set of livestock now, like the dung beetles.”

The environmental goal at Circle H is to continue building up the resilience of the land by increasing the amount of soil organic matter and improving nutrient and water cycles. “This is the tip of the iceberg of land regeneration,” Harper adds.

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Comments

  • Mark Schram

    It’s clear that rotational grazing shows significant benefits over continuous grazing, but can anyone point me in the direction of some research performed somewhere on the prairies that shows an advantage of 160,000 lbs/ac over 60,000 lbs/ac? So far, the only studies I’ve come across are from down in the states and showed the best results around 10,000 lbs/ac.

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