Organic matter is a common limiting factor in the selection of crop, nutrients, or pesticides. Organic matter is a extremely limiting factor in the selection of crop, nutrients, or pesticides. The soil is very crumbly with lots of pore space. The soil is crumbly with good pore space. The soil breaks into clods.
Pores are less visible.
The soil breaks into large clods with very little pore space. No sign of crusting or soil compaction. No sign of crusting or soil compaction. Soil sometimes crusts. Crusting and compaction are evident.