Application of livestock manure can benefit crop production as a valuable source of nitrogen (Bandel and Fox 1984; Campbell et al. 1986; Chase et al. 1991). However, phosphorus is not a negligible factor as phosphorus in ...

ALS inhibiting herbicides exhibit high bioactivity at low concentrations and may persist in the soil. To examine possible interactions between two different residues present together in the soil, field and lab tests were ...

A growth chamber experiment was established to demonstrate several basic principles of soil fertility to undergraduate students. Barley and field pea were grown in pots to demonstrate the effects of erosion and crop rotation ...

Intensive hog operations generate large amounts of manure that must be dealt with in a manner that is both economically and environmentally sound. The objective of the research described is to evaluate the effect of ...