Bags of compost and a field covered in plastic, used as a... - John Harris, J1203k462.jpg

Bags of compost and a field covered in plastic, used as a mulch in vegetable production. This allows early planting and retains soil moisture, The Warwick Crop Centre, a horticultural crop research centre and part of Warwick University, Wellesbourne, Warwickshire - John Harris - 2013-03-09
 
 
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