Friday, October 2, 2015

Windbreaks


 "The best time to plant a tree is twenty years ago.
    The second best time is now."
                                                     Chinese Proverb

  Picture if you will, a newly planted vegetable seedling in a large open field. 

  It was transplanted into beautiful, loamy soil with ideal moisture conditions and a shot of water and starter fertilizer to settle it into its new home. The day is sunny and warm. Conditions are perfect.

  Most early mornings are relatively windless on our farm, but, by about 9:30 a.m. the wind has really picked up. The wind generally strengthens through the day, often hitting 60-70 clicks by afternoon. Visitors from the city often remark on how windy it is on the farm compared to the city they just left.

  Long before this speed has been attained, our happy little transplant is starting to undergo some serious stress. It is transpiring or losing moisture through its leaves more quickly than it can replace that water through its roots. Blowing soil damages the leaves as well.

  Left unchecked, wind will stunt the growth of those stressed transplants leaving them prone to insect damage and disease with a consequent reduction in final yield.

  This is where those windbreaks enter the picture.

  By planting rows of coniferous trees at 90 degrees to the prevailing wind, we are able to slow down the wind to a point where it is no longer damaging.

  The rule of thumb for protection from windbreaks is that: for every foot of tree height,
ten feet of field to the lee of the wind is protected.

  Our oldest windbreak is a triple row of Norway Spruce, planted in 1927 by a forward thinking Carl Reesor. It is now about 80 feet high, giving us roughly 800 feet of protection, which covers most of our farmstead buildings.

  It also shelters a 3 acre field where the benefits of a dense windbreak become most apparent.

  The microclimate that has been created to the lee of this windbreak is an almost unbelievable transformation: a virtually windless sanctuary that we refer to as "the banana belt". It is perfect for watermelon and other heat seeking crops that thrive in the lush, steamy sanctuary that it becomes every summer.

  I have added to this original windbreak over the years, planting 2000 conifers in 1984 and another 2000 trees in 2006. I used white cedar to the windward side, with a middle row of norway spruce and white spruce on the leeward side. I've also used white pine on some of the more sandy land.

  No wonder so many people ask me if we sell pick your own Christmas trees!

  My own experience is that the trees have grown about one foot per year. That assumes that you take care of them just like any field crop: our 2006 planting required extensive watering in the drought of 2007. We also weed around the trees and mow between the rows for the first 6-7 years.

  Practical people have pointed out to me that I'd better stick at the farming for awhile to take advantage of that latest planting.

  They're right, of course. I hope to do just that; after all, those fields are going to be more fun and easier to farm every year!

  Less gusty in Gormley,

  Guy

P.S. Our windbreaks will be part of a Conservation Authority Tour this coming Thursday October 8, 2015.

http://www.thelivingcity.org/dotAsset/211509.jpg

Check out the link, you may want to be part of an environmental farm tour to hear more details about our windbreaks and other farm initiatives:







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