Sirs I appreciated the content in the last Landwards on issues surrounding soil degradation. The world's farmers must now embark on profound changes because of food security issues. These changes are soil-quality driven, input-cost driven and follow from the need for farming to be much more sustainable. Introducing Conservation Agriculture (CA) concerns a vast reduction in conventional farm work but also involves substantial differences in soil-focused, fuel-efficient machinery that is not concerned with ploughing or rotovating at all.
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