1.   In most of these countries ethanol production is likely to be attractive only if based on surplus low-cost biomass materials such as molasses and agricultural crop residues.

2.   Dry grasslands and crop residue in agricultural areas will add fuel for potential fires.

3.   If the lines could not be separated, the ministry said equipment should be cleared with crop residue, such as soybeans, which would absorb leftover abnormal prions.

4.   Now, if you have a fairly powerful rotary tiller, you can simply break up the crop residue and till it into the soil.

5.   Ploughing aerates the soil, helping rot weeds and crop residues.

6.   This detritus is called crop residue and it is a valuable form of organic material.

7.   Very dry grasslands and crop residue from the recent harvest add fuel for potential fires.