According to the cover crop experts at GO SEED, research has found a synergistic relationship between berseem clover and alfalfa that increases hay yield and quality.

Potassium (K) fertilization is important for high yields in forage crops such as alfalfa. While K fertilizer has historically been cheap compared to the other major macronutrients, supplying removal rates to alfalfa annually can result in a significant expense to alfalfa producers. Research from the University of Minnesota clarifies when it makes sense to apply K, when it doesn't, and what factors to keep in mind.