< Return to Video

Regeneration of our lands: a producer’s perspective | Gabe Brown | TEDxGrandForks

  • 0:21 - 0:26
    How fitting it is that this event,
    which is titled "Roots to Wings,"
  • 0:26 - 0:28
    is taking place here in North Dakota,
  • 0:28 - 0:33
    for the motto of the state of North Dakota
    is "Strength through the Soil."
  • 0:33 - 0:36
    And that's what I'm going
    to visit with you about today,
  • 0:36 - 0:39
    it's about our soil resource.
  • 0:40 - 0:42
    Agriculture has been challenged.
  • 0:42 - 0:47
    How do we feed nine billion
    people by the year 2050?
  • 0:48 - 0:52
    With today's current production
    model, we can do that.
  • 0:52 - 0:56
    It is a model with which
    one tills the soil.
  • 0:57 - 1:00
    It's a model of monoculture
    production practices.
  • 1:00 - 1:02
    No matter where you go
    around this great state,
  • 1:02 - 1:06
    there's fields of wheat, fields of corn,
  • 1:06 - 1:10
    fields of soybeans, and many other crops.
  • 1:10 - 1:14
    It's one of livestock
    which are now in confinement;
  • 1:14 - 1:18
    whether it be poultry housed
    in poultry houses,
  • 1:18 - 1:22
    or beef cattle in a feedlot, for example.
  • 1:22 - 1:26
    However, these practices
    have come at a cost.
  • 1:26 - 1:29
    They have caused a loss of biodiversity.
  • 1:30 - 1:36
    Healthy native range land
    has hundreds of different species
  • 1:36 - 1:41
    of plants, and animals, and insects.
  • 1:42 - 1:45
    Monocultures have but very few.
  • 1:45 - 1:48
    This lack of biodiversity
  • 1:48 - 1:53
    has led to the destruction
    of our soil resource.
  • 1:53 - 1:56
    And that's what I'm going
    to visit with you about today.
  • 1:56 - 1:58
    I'll share some proof with you,
  • 1:58 - 2:02
    and this is statistics provided
    by North Dakota State University.
  • 2:02 - 2:08
    In Walsh County, North Dakota in 1960,
    the topsoil was 34 inches deep.
  • 2:08 - 2:13
    In 2014, that topsoil
    was only 15 inches deep -
  • 2:14 - 2:17
    a stunning 56 percent loss.
  • 2:18 - 2:22
    The organic matter level on that same soil
    had gone from over 8 percent
  • 2:23 - 2:26
    to less than 3 percent today.
  • 2:27 - 2:29
    Look at the ramifications of that.
  • 2:29 - 2:35
    The soil on your left
    was the soil that had not been tilled,
  • 2:35 - 2:38
    and had not seen monoculture
    production practices.
  • 2:38 - 2:42
    That's the same soil
    17 years later on the right,
  • 2:43 - 2:47
    after 17 years of the production model
  • 2:47 - 2:50
    of tillage and monocultures.
  • 2:51 - 2:54
    It also destroys
    the pore spaces in the soil.
  • 2:54 - 2:58
    Those pore spaces are critical
    for the life in the soil,
  • 2:58 - 3:02
    are critical for water infiltration,
  • 3:02 - 3:07
    because if we don't have soil aggregates,
    we cannot infiltrate water.
  • 3:07 - 3:12
    I took this photo in a field less than
    ten miles from where you're seated today.
  • 3:13 - 3:16
    That shows a half of an inch of rainfall
  • 3:16 - 3:21
    can no longer be infiltrated
    into the soil profile.
  • 3:21 - 3:24
    If we can't infiltrate water,
    then what happens?
  • 3:24 - 3:27
    We resort to things such as tile drainage.
  • 3:27 - 3:32
    And you're seeing this all over
    the central United States today.
  • 3:32 - 3:35
    What happens when we put tile drainage in
  • 3:35 - 3:39
    and we do not have the soil aggregates
    to hold our soils in place?
  • 3:39 - 3:42
    That soil ends up in the watershed,
  • 3:42 - 3:45
    and unfortunately, along with it,
    goes all the nutrients
  • 3:45 - 3:49
    that may have been applied
    to those fields.
  • 3:50 - 3:55
    That lack of biodiversity
    also leads to lower nutrient cycling.
  • 3:55 - 3:58
    If we don't have
    adequate nutrient cycling,
  • 3:58 - 4:02
    we're going to have to add
    more and more synthetic fertilizers.
  • 4:02 - 4:05
    Those synthetic fertilizers
    come at a cost -
  • 4:05 - 4:07
    the cost of fossil fuel usage,
  • 4:07 - 4:13
    and, they also spur the decline
    of the soil biology.
  • 4:14 - 4:16
    We need to understand how soil functions.
  • 4:16 - 4:21
    How soil functions is due to that biology,
  • 4:21 - 4:25
    because the plants get
    their nutrients via the biology.
  • 4:26 - 4:32
    High synthetic fertilizer use
    also aids in the propagation of weeds.
  • 4:32 - 4:34
    Most weeds love nitrogen.
  • 4:34 - 4:39
    The more synthetic fertilizer we apply,
    the more weeds we get.
  • 4:39 - 4:42
    If we have increased weed pressure,
    what do we have to do?
  • 4:43 - 4:45
    Spray herbicides.
  • 4:45 - 4:49
    Now, unfortunately, many
    of those herbicides are chelates.
  • 4:50 - 4:51
    What is a chelate?
  • 4:51 - 4:53
    A chelate binds metals.
  • 4:53 - 4:58
    So any of the metals such as magnesium,
    manganese, iron, zinc, copper,
  • 4:59 - 5:01
    then become unavailable to the plants.
  • 5:02 - 5:05
    If the plant cannot uptake
    these micronutrients,
  • 5:05 - 5:08
    it's more prone to disease.
  • 5:08 - 5:11
    Because plants cannot
    ward off diseases on their own,
  • 5:12 - 5:14
    we need to spray fungicides.
  • 5:16 - 5:19
    Fungicides, then, are detrimental to what?
  • 5:19 - 5:21
    Soil biology.
  • 5:22 - 5:26
    Because plants are not healthy
    enough to ward off pests,
  • 5:26 - 5:28
    we then need to do what?
  • 5:29 - 5:31
    We spray pesticides,
  • 5:31 - 5:35
    on the crops which are meant
    for human consumption.
  • 5:35 - 5:39
    Because we spray pesticides,
    we have a decline in what?
  • 5:40 - 5:45
    The very predator insects
    which would take care of the pests
  • 5:45 - 5:46
    which we are spraying.
  • 5:47 - 5:50
    We also have a decline in pollinators.
  • 5:50 - 5:53
    You can hardly pick up
    a paper or a magazine today
  • 5:53 - 5:56
    without reading about
    the plight of our pollinators.
  • 5:56 - 6:00
    These pollinators are critical
    in our crop production.
  • 6:02 - 6:05
    The current production model
    is all about killing.
  • 6:05 - 6:09
    Whether it be weeds, a fungus, a pest,
  • 6:09 - 6:13
    our diversity, or our profit.
  • 6:13 - 6:15
    Take a look at these projections
  • 6:15 - 6:18
    just put out by North Dakota
    State University.
  • 6:18 - 6:22
    They're 2016 projections for some
    of the major crops in our state.
  • 6:22 - 6:25
    Every one of them
    projects a negative return.
  • 6:26 - 6:28
    What impact does that have
  • 6:28 - 6:32
    on the quality of life
    of those producing that crop?
  • 6:33 - 6:34
    But take it a step further:
  • 6:34 - 6:37
    What impact does it have on our schools?
  • 6:37 - 6:41
    Drive around this state of ours
    and you'll see a lot of small towns
  • 6:41 - 6:44
    that have fewer and fewer children
    attending the schools.
  • 6:45 - 6:47
    What effect does that have
    on our businesses?
  • 6:48 - 6:50
    And then on our communities?
  • 6:50 - 6:55
    What effect does the current
    production model have on our health?
  • 6:57 - 6:58
    Take a look at this.
  • 6:58 - 7:02
    The nutrient densities
    of the foods that we produce
  • 7:02 - 7:06
    have declined anywhere
    from 15 to 65 percent
  • 7:06 - 7:09
    in the last 50 years.
  • 7:09 - 7:12
    This has had many negative consequences.
  • 7:12 - 7:14
    The United States
    spends more on healthcare
  • 7:14 - 7:17
    than any other developed
    country in the world.
  • 7:17 - 7:22
    Yet look at this - we lead the world
    in the incidences of ADD,
  • 7:22 - 7:29
    ADHD, cancer, osteoporosis,
    Alzheimer's, autoimmune diseases,
  • 7:29 - 7:31
    and the list goes on and on.
  • 7:31 - 7:33
    This is not acceptable.
  • 7:34 - 7:36
    It cannot continue.
  • 7:36 - 7:39
    But the good news is there's another way,
  • 7:39 - 7:40
    and I'm going to share that with you.
  • 7:40 - 7:42
    It's nature's way.
  • 7:43 - 7:45
    Look at how nature functions.
  • 7:45 - 7:49
    In nature, there's no mechanical tillage.
  • 7:49 - 7:53
    Yet in our production model,
    we're tilling the soil.
  • 7:53 - 7:57
    In nature, there's always armor
    on the soil surface,
  • 7:57 - 8:02
    protecting that soil from wind erosion,
    water erosion, evaporation.
  • 8:03 - 8:06
    Yet in our production model,
    the fields lie bare.
  • 8:06 - 8:10
    Nature cycles water very efficiently.
  • 8:10 - 8:13
    It's able to infiltrate
    into the soil profile,
  • 8:13 - 8:15
    then, due to the large amount
    of organic matter,
  • 8:15 - 8:19
    it's held there, for such a time
    it's needed by plants.
  • 8:19 - 8:24
    By destroying our soil resource,
    we can no longer infiltrate the water
  • 8:24 - 8:27
    and store it for when it's needed.
  • 8:27 - 8:30
    Nature has living plant-root networks;
  • 8:30 - 8:35
    there's things growing at all times
    throughout the growing season.
  • 8:35 - 8:38
    Not that way with production agriculture.
  • 8:38 - 8:43
    So often we hear about
    the production model that we have today
  • 8:43 - 8:45
    as the "conventional model."
  • 8:45 - 8:49
    I would argue that nature's way
    is the conventional model,
  • 8:49 - 8:52
    because it's been around for eons of time.
  • 8:52 - 8:56
    Think of it this way: what did
    this land look like 400 years ago?
  • 8:57 - 8:59
    You had a lot of diversity.
  • 9:00 - 9:06
    There was diversity of plant species:
    forbs, grasses, legumes, trees.
  • 9:06 - 9:10
    And then also you had a diversity
    of animals and insects,
  • 9:10 - 9:15
    and all these worked together
    to build a healthy ecosystem.
  • 9:17 - 9:21
    So there's five principles
    that we must follow
  • 9:21 - 9:23
    in order to follow nature's model.
  • 9:23 - 9:28
    They are, number one: least amount
    of mechanical disturbance possible.
  • 9:28 - 9:34
    On my own ranch, we have been
    100 percent zero till since 1994;
  • 9:34 - 9:37
    we have not tilled the soil at all.
  • 9:37 - 9:42
    The second tenet of soil health
    is armor on the soil surface;
  • 9:42 - 9:45
    we always have the soil covered.
  • 9:45 - 9:49
    That's a picture of one
    of our fields following seeding.
  • 9:49 - 9:54
    That field is no longer prone
    to wind erosion or water erosion
  • 9:54 - 9:57
    because we're keeping armor
    on the surface.
  • 9:57 - 10:00
    Third tenet of soil health is diversity.
  • 10:00 - 10:04
    My son teaches range land management
    at the local community college.
  • 10:04 - 10:07
    He brought his students
    out to one of our paddocks.
  • 10:07 - 10:13
    They counted over 140 different species
    of grasses, forbs, and legumes.
  • 10:14 - 10:18
    Why don't we have that
    in production agriculture today?
  • 10:18 - 10:21
    On our operation,
    we're trying to mimic it.
  • 10:21 - 10:25
    These are just some of the cash crops
    that we grow on our operation.
  • 10:25 - 10:29
    We don't just grow one
    cash crop, we grow many.
  • 10:29 - 10:33
    Along with that, we do not grow
    cash crops as monocultures.
  • 10:33 - 10:37
    In the upper left there, that's oats
    with three types of clover growing in it.
  • 10:37 - 10:41
    In the upper right is a very diverse
    cool-season broadleaf mix.
  • 10:41 - 10:45
    The lower left, that's corn
    with hairy vetch growing in it.
  • 10:45 - 10:47
    The lower right, that's sunflowers
  • 10:47 - 10:50
    with over 19 species
    of covers growing with it.
  • 10:50 - 10:54
    A tremendous amount of diversity
    feeding soil biology.
  • 10:54 - 10:57
    We also have orchards on our operation.
  • 10:57 - 11:01
    These orchards, besides
    providing us with the fruit,
  • 11:02 - 11:05
    we're able to have livestock
    grazing underneath them,
  • 11:05 - 11:07
    thus stacking enterprises.
  • 11:08 - 11:10
    We have five acres
    of vegetable production,
  • 11:10 - 11:13
    but it's not as monocultures.
  • 11:13 - 11:17
    In between each of those corn rows
    is rows of peas, beans, squash,
  • 11:17 - 11:21
    zucchini, carrots, pumpkins,
    and a variety of other species
  • 11:21 - 11:25
    so that we get the benefit of diversity.
  • 11:25 - 11:27
    Fourth tenet of soil health
  • 11:27 - 11:30
    is leaving roots in the ground
    as long as possible.
  • 11:30 - 11:33
    You don't have to drive very far
    around this state
  • 11:33 - 11:37
    to see that there are monocultures growing
    for only a short period of time,
  • 11:37 - 11:39
    and then the land lays idle.
  • 11:40 - 11:43
    These are just some of the cover crop
    species which we planted
  • 11:43 - 11:45
    on our operation this past year.
  • 11:45 - 11:48
    We actually planted
    over 70 different species.
  • 11:49 - 11:52
    From the time the snow
    melts in the spring,
  • 11:52 - 11:58
    until the snow stays in early winter,
    we have a variety of species growing
  • 11:58 - 12:01
    on our land to feed soil health.
  • 12:01 - 12:04
    We're optimizing solar energy collection.
  • 12:04 - 12:10
    Because how the system works is,
    we take sunlight through photosynthesis;
  • 12:10 - 12:14
    it makes carbon; that carbon
    is transferred down to the roots,
  • 12:14 - 12:19
    where it's leaked out as root exudates,
    that's what all the biology feeds on.
  • 12:19 - 12:24
    We need that biology in order
    to get the nutrients to the plant
  • 12:24 - 12:27
    to nourish animals and people.
  • 12:27 - 12:31
    For you see, if we have healthy soil,
    we're going to have clean air,
  • 12:31 - 12:36
    clean water, healthy plants,
    healthy animals, and healthy people.
  • 12:36 - 12:39
    We have to focus on feeding biology.
  • 12:39 - 12:42
    Along with this, then, we're able to feed
  • 12:42 - 12:45
    all of the wildlife
    that's on our operation.
  • 12:45 - 12:48
    We also feed a myriad
    of different insects.
  • 12:48 - 12:51
    Insects tend to get a bad rap.
  • 12:51 - 12:54
    We like a wide variety of insects
  • 12:54 - 12:57
    including all the predator insects
    which take care of the pests.
  • 12:57 - 13:01
    We want to address our problems
    through biological means
  • 13:01 - 13:03
    not through chemical means.
  • 13:04 - 13:07
    Dr Jonathan Lundgren,
    one of the world's foremost entomologists,
  • 13:07 - 13:09
    told me this:
  • 13:09 - 13:15
    For every insect species that's a pest,
    there's 1,700 that are beneficial.
  • 13:15 - 13:19
    Why in production agriculture do we aim
    at just killing that pest,
  • 13:19 - 13:24
    when we should aim at providing habitat
    for all those beneficials?
  • 13:24 - 13:30
    The reason producers have a pest problem
    is because of a lack of diversity.
  • 13:30 - 13:33
    We need to think biologically.
  • 13:33 - 13:37
    Fifth tenet of a healthy ecosystem
    is animal impact.
  • 13:37 - 13:42
    On our operation we run
    a herd of 350 beef cows.
  • 13:42 - 13:46
    We also grass finish that beef
    because we know it's healthier,
  • 13:46 - 13:49
    both for us and for the animals.
  • 13:49 - 13:52
    We have a flock of sheep
    and raise grass-finished lamb.
  • 13:52 - 13:54
    We have pastured pork.
  • 13:55 - 13:58
    We have broilers which are out on pasture.
  • 13:58 - 14:05
    And we have a flock of 750 laying hens
    which are also out on pasture.
  • 14:06 - 14:08
    We also have bees.
  • 14:08 - 14:10
    Those bees, besides pollinating our crop,
  • 14:10 - 14:13
    provide us with honey.
  • 14:13 - 14:15
    Here's what we've done on our operation.
  • 14:15 - 14:20
    When we started in 1993 on the left,
    we had very shallow topsoil -
  • 14:20 - 14:23
    1.7 percent organic matter.
  • 14:23 - 14:27
    We could only infiltrate
    a half of an inch of rainfall per hour.
  • 14:28 - 14:29
    We then went no-till.
  • 14:29 - 14:32
    We started to diversify
    the cash crop rotation;
  • 14:32 - 14:35
    we noticed an improvement in soil health.
  • 14:35 - 14:38
    From there, we started
    to add cover crops -
  • 14:38 - 14:41
    another improvement in soil health,
    our organic matter levels rose,
  • 14:41 - 14:43
    our infiltration improved.
  • 14:43 - 14:47
    We then started integrating
    all of these livestock species
  • 14:47 - 14:48
    on top of it -
  • 14:48 - 14:52
    another marked increase
    in the health of our soil ecosystem.
  • 14:52 - 14:56
    Now in 2013, we actually
    have a plot of land
  • 14:56 - 15:00
    which is now over
    11 percent organic matter.
  • 15:01 - 15:03
    The same soils that in 1993
  • 15:03 - 15:07
    could only infiltrate
    a half of an inch of rainfall per hour,
  • 15:07 - 15:11
    can now infiltrate
    over 15 inches of rainfall per hour.
  • 15:11 - 15:16
    We've done this without the use
    of any synthetic fertilizers,
  • 15:16 - 15:18
    pesticides, or fungicides.
  • 15:19 - 15:22
    We've done it by following
    the principles of nature.
  • 15:22 - 15:27
    This has led to a ranch that is profitable
    every year, regardless of price.
  • 15:27 - 15:32
    And we do this without taking part
    in any government subsidies of any kind,
  • 15:32 - 15:36
    whether it be a crop insurance, EQIP, CSP,
  • 15:36 - 15:39
    or any other form of government payment.
  • 15:39 - 15:42
    Thus, we are not a burden to society.
  • 15:42 - 15:44
    The stacking of enterprises has allowed us
  • 15:44 - 15:48
    to produce many more
    nutrient dense calories of food
  • 15:48 - 15:53
    at a lower cost as compared
    to the current production model.
  • 15:53 - 15:56
    Yes, we can feed the world,
  • 15:56 - 16:00
    and we can do it in a way
    that regenerates our resources,
  • 16:00 - 16:05
    thus, healing farms,
    families, and communities.
  • 16:06 - 16:07
    Thank you.
Title:
Regeneration of our lands: a producer’s perspective | Gabe Brown | TEDxGrandForks
Description:

The United States is in crisis. The health of our soil resource has declined to such a point that it is not only negatively affecting farm and ranch profitability, but it is also having a devastating impact on everything from our water quality to our communities and even to our health. North Dakota rancher Gabe Brown walks us through a common sense solution to this crisis.

Gabe Brown is one of the pioneers of the current soil health movement that focuses on regenerating our resources.

This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at http://ted.com/tedx

more » « less
Video Language:
English
Team:
closed TED
Project:
TEDxTalks
Duration:
16:25

English subtitles

Revisions