Posted by johndeerefan on December 17, 2013 at 09:16:39 from (75.146.9.13):
In Reply to: Deep Deep plowing posted by johndeerefan on December 17, 2013 at 08:56:38:
Here is more info on why supposedly.
More info on the Deep Plowing from yesterday! Deep plowing is a plowing to a depth greater than 50 cm (20 in) as compared to ordinary plowing which rarely exceeds 20 cm (8 in).[1] In practice this requires two or more tractors, one tractor pulling the other tractor.[2] The purpose of deep plowing is to modify the soil water retention characteristics over the long term.[1] In one long term test, lasting 35 years, the mean annual grain yield was 2800 lbs per acre ( 3,138 kg per ha) with deep plowing, which was greater than the 2550 lbs per acre (2,858 kg per ha) yield in unplowed plots.
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