you need pancake flat ...
Published by Jim Boak, Ret. ag. advisor at GLIER U of Windsor. Ind. Ag. & Environmental consultant.
you need pancake flat topography for this to work.
1 Comment
Hi Jim yes equal or less than 2% is ideal. Luckily the area in question about 1 million hectares are all close to the mark.
Published by Johnnie van der Walt