Re: HD ridging, Reuben Hofshi, 20. Sep 2013 22:20
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In Israel I. Adato developed a method of root restriction. His contention is that during the winter and early Spring roots expand away from the drip line where irrigation water is normally absent. Once the rainwater is no longer available the roots die back to the area where the irrigation water can reach. To minimize the amount of energy used for root growth that is later wasted because of root death he places along the edge of the ridge a 6-8" solid plastic boundary. The idea here is that the roots will only grow as far as the boundary and stay there. They normally irrigate with drippers or emitters that have a throw within the plastic boundary. I'll need to get the yield results.
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