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Weed learning module
Answer ...
How do soil physical properties affect cultivation?
We do not yet know what physical factors, if any, most influence the effectiveness of cultivation - that is why we are doing the study! My guess is that soil density, dry aggregate size distribution, wet aggregate stability and soil strength may relate best to cultivator performance. Soil density is an overall measure of compaction. Dry aggregate distribution will indicate how crumbly the soil is and therefore how well it is likely to cover in-row weeds. Wet aggregate stability and soil strength may indicate how easily soil cracks away from roots. Fortunately, statistical techniques exist that will help us determine which, if any, of the soil properties relate to the percentage weed kill.
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