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Page 16 · column 1 of 7 · from the scan, no model involved

Soil quality
and treatment
Soil quality is an important determining factor in availability to plants. A trace mineral and humus rich soil will attract and reserve far more moisture than a compacted, microbially deficient one. Poor, heavy soil may soak up some water initially, but will soon run off or evaporate: it won’t allow the water to pene(
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