Instead of being harvested, many cover crops are returned to the soil. In this way their nutrients can be used by other crops. Legume cover crops, in particular, are an excellent source of nitrogen -- a key nutrient for all plant life. Researchers find cover crop decomposition and nitrogen release vary with type of cover crop used and addition of poultry litter. Cover crops also control weeds and help to manage pests.
A new report documents all of the fishes that live in the Salish Sea. In total, 253 fish species have been recorded, and that’s about 14 percent more than in the last count.
For vet schools, the unfortunate reality of being the whitest profession in the U.S. provides an opportunity for positive change. The first step is to admit that there is a problem, namely lack of diversity. The next step is to begin aggressively recruiting students from the largest racial group in the U.S.