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For many years there
have been stories in the agricultural industry about the inevitable
losses a grower must sustain when they changeover to Organic/Biodynamic
production. This problem has become the main excuse why many
growers can not take the risk of changing over. This story has
been perpetrated as much by the organic industry itself as others.
Many research projects support this premise. Our own Bio-Dynamic
Association advisers have made this a part of their presentations
to new growers for years. Indeed articles outlining the inevitability
of these losses published in "Harvests" have been the
catalyst for this article to be written. ( eg. the Kiwifruit
article of the winter 1996 Harvests. )
One British research
project ( seen on a TV program several years ago ) and commercial
examples in New Zealand have shown me this belief may indeed
be an unnecessary myth for most agricultural and horticultural
situations. Production on some Organic/Biodynamic changeover
farms is not only NOT decreasing, they have increased as much
as a 30% in the second year.
The general experience
of Watties organic growers, according to Mark Levick, the Bio
Gro chief inspector, is that only the farms who where producing
at the top of their limit due to high levels of artificial fertiliser
imputs experience substantial drops in production during changeover.
His experience and the expectations of the Watties Bio Gro growers
is that a 10% reduction is experienced in the first year before
returning to normal production levels. The premiums for the produce
which regularly exceed 15% above the market price balance this
out in most cases. This leads to large advantages from year two
onwards.
Even these losses are being shown to be unnecessary. The July
1996 issue of the NZ Kiwifruit Journal carried a report of Cherryle
Melton and Dave Glasgow's property Kilkerran in Te Puke, which
boasts a changeover increase in production from 22,000 trays
to 32,000 trays in their third year of organic production. Increases
in production started showing up from their first organic season.
For their 4.2 canopy hectare property this represents a 7000
+ trays / hectare production level of 35 count fruit size. In
the editors words " tray numbers well above both organic
and conventional fruit." Given there is at least a $1.80
premium per tray on the Kilkerran fruit, and that the conventional
growers are struggling to survive, who made the right decision
three years ago? This has been achieved by growers who until
five years ago were 'townies' from Auckland. ( Productions details
include 10 tonne \ ha. of Attwoods BioGro compost for the first
two years, 5t\ha for the following years. Approximately 6 sprays
of Garuda Biodynamic preparations, Etherics 500 and 501 Compound
pa., Fish and Seaweed applications along with recommended sprays
of BT and oil according to monitoring results. )
[Regarding the use and effectiveness of potentised Biodynamic
preparations (Garuda products ) refer to "Agriculture of
Tomorrow" by E & L Kolisko, and "Laws of Life in
Agriculture" by N Remer.]
This example has been
repeated to varying degrees by several other Bay of Plenty Kiwifruit
growers. The soils consultant for these properties, John Perham
reports that none of the dozen or so Bay of Plenty changeover
orchards which recently received the BioGro trademark, suffered
any production loss through changeover. On the strength of the
Kilkerran success and that of these other Bay of Plenty kiwifruit
growers, there is now around 200 ha. more Kiwifruit being converted
to organic production this season.
A recent experience with
a Dairy farm client in the Bay of Plenty, managed by Grant Paton,
has shown similar increases. While this property was not 'strictly'
organic ( Production details: 40kg\ha of Urea was used instead
of fish fert. and 60kg\ha of Muriate of Potash was applied in
2 lots, in addition to an application of Burnt Lime, a composted
RPR product and 2 Garuda biodynamic sprays. Animals were drenched
with organic nutrients and feed 1 kg of 'hard' supplement each
milking ), the overall results are impressive and act as an indication
of what is possible from purely addressing the nutritional needs
of both the soil and stock. In this first year of changeover
this properties production has lifted from 17,000 kgs of milk
fat to 22,000kgs from this 43 ha. property. This milk fat came
from 38,000 kgs of milk solids. In dollar terms this translates
to a minimum of $150,000 increase in land value and $30,000 more
in milk checks. Further savings of up to $10,000 pa. are calculated
from savings on replacements. The animal health, pasture development
and conception rate of this property have been amongst the best
in the district. The vet bill was negligible as was the use of
any homeopathic remedies. ( Conception rate - of 1 empty out
of 125 with no Ceders. The Zone average was 10% -12% ). This
example has been repeated this season on several other East Coast
properties.
So what stands these
properties above the rest?
Essentially I believe
it is proper soil management. The common factors in all the examples
cited have been comprehensive soil testing of macro and micro
nutrients. The organic matter, biological activity and soil development
have been monitored and encouraged using compost and acceptable
minerals along with the inclusion of Garuda Biodynamic Sprays.
The resulting management programs aim to balance the nutrient
levels and ratios of the soil, rather than push a few specific
elements. Micro-organism production has been a special focus
of consideration. Successful organic farmers become micro-organism
farmers as much as produce farmers.
We hear and read much about the need for developing a good humus
percentage and soil structure. Here I wish to emphasis the importance
the above consultants place on creating a balance of soil nutrients
as well. This initially can only be achieved through adequate
and reliable soil testing. A 'good soil' is not only one with
good 'structure' and active Biosphere. Its nutrients need to
be in balance for the plant to grow completely stress free. Left
to itself an 'Organic\Biodynamic' soil will move towards a nutrient
balance however as experience shows, it will take five years
or so. Regardless of being organic, soil has a natural tendency
towards becoming acidic and to using specific nutrients. These
nutrients need to be monitored and maintained. Soil testing provides
the doorway to begin this process. I realise within our Association
there are members who do not agree with my "belief"
in the value of soil testing or that changeover losses are unnecessary.
So let the commercial examples speak for themselves.
In contrast to the above
examples we have found some soil tests from registered farms
are showing many of the nutrients to be completely out of balance.
In this regard I wish
to call into question the practice I personally heard being promoted
at a Paeroa Biodynamic field day. That the annual application
of 500kg of Lime and 500kg of Rock Phosphate \ ha. along with
a fish fertiliser regime, acts as the basis of the fertiliser
program for dairy farms. I do not remember soil testing being
suggested in any discussion.
Our experience is showing
some soils are becoming 'filled up' with these two elements,
which in turn leads to imbalances in their relationships to Potash,
Copper, Zinc, Boron, Magnesium and Manganese. Not only are these
elements unbalanced and in some cases suppressed, we are then
faced with the problem of reducing the Calcium and Phosphate,
through leaching so these other elements can become active.
In my opinion a common
mistake when using a soil test is to assume because an element
is low in the test, then it should just be added to make up the
deficiency. Research by John Perhman of Eco Soils in the Bay
of Plenty has shown examples where Potassium has been routinely
applied to the soil, with the test levels reducing every year.
Once Potassium imputs were stopped the Potassium levels in the
test shot up. Similar examples for Phosphorus and Manganese can
also be provided. It is through gaining an appreciation of past
fertiliser applications and the reaction between the elements,
that only what is needed to create a balance can be provided.
Often if one element is applied another may need to be increased
also just to maintain their creative balance.
Similarly compost can create its own drama. Very few composts
have a balance of elements. Often when compost is applied there
are other nutrients needing to be applied to maintain balance
in the soil. Again only through testing the compost can you know
what is in it, and therefore what adjustments need to be made
to it to make it 'safe' for your soil.
Creating a balanced soil
nutrition before conversion is often essential to longer term
sustainability. Maintaining it goes without saying. Often it
is to a growers advantage to address large deficiencies of nutrients
with an application of an 'unacceptable' form of an element before
conversion. This helps bridge the gap until the acceptable yet
slower solutions are in place and active.
Once your nutrient balance
is achieved all other efforts for humus development, environmental
harmony and sustainability will work more effectively. Ultimately
all problems on a farm are problems with nutrition. Surviving
using even homeopathic remedies is a symptom that imbalance still
exists. So start with your soil.
The Biodynamic preparations
go some way towards bringing balance into converting soils, however
as production results show they do not completely cover up bad
soil and nutrient management. If a soil is unbalanced, either
minerally or within the Biosphere, then the Biodynamic preparations
act as balancing influences, which are continually being pulled
at by the 'bad soil'. In short their effects are continually
being challenged. It is like driving a car with unbalanced front
wheels. You will be lucky to get over 100kph. Balance them and
you can effortlessly speed along at 140kph. Correctly balance
your soils nutrition, followed by the Biosphere and the majority
of your pest and disease problems will disappear, while your
production will increase.
Another drawback from
just adding BD preps - often all that separates an organic and
Biodynamic farmer - is they appear to speed up the activation
of previously locked up elements. This is O.K. initially however
it can lull one into a false sense of security. Down the track
these elements run out again and your trademark becomes threatened
when trace elements in particular are needed in larger quantities.
It is better to achieve a relative balance first and then maintain
it working slowly with composted elements.
All the nutrients you
need are obtainable in most districts, in organically acceptable
forms and can be applied using existing spreaders. Where restricted
substances need to be applied, these can be incorporated into
a composting program , thus bringing them, and the compost to
the soil in a stabilised form.
As a practising Astrologer
of some twenty years, I have an acute appreciation of the influence
of the Planets and Stars on Earthly life. This awareness has
led me to see how we live within a multi layered existence. To
date I have identified twelve basic layers which we as Biodynamic
practioners can consciously worked with. ( See
this diagram. ) The mineral soil is at the bottom of it all
and the starting place upon which life begins. From here we can
work with soil biology in the Biosphere, then the environment
through our efforts with landscape, and onto weather prediction
and finally planting by the moon. All the levels are important.
The more levels one can balance and harmonise the greater the
'magic' that can be produced.
Soil science is a complex
subject and as in all things, using experienced consultants till
you are up to speed yourself is essential. Consultants often
bring in different perspectives you may overlook in your production
methods.
Our experience with the Kiwifruit and Dairy industries are showing
that when conversion can be shown to be easy and without production
losses, many growers will take the plunge and succeed. The Dairy
industry is presently on this same vital edge of conversion the
Kiwifruit industry was three years ago, given markets can be
provided for their produce. Before this can be achieved though
we as an Organic \ Biodynamic industry must develop beyond the
'conversion blues' mentality of organic production.
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