Ondersteijn CJ, AG Lansink, GW Giesen and RB Huirne (2001). “Improving Nutrient Efficiency as a Strategy to Reduce Nutrient Surpluses on Dairy Farms.” Scientific World Journal 2: 866-872.
Ondersteijn CJ, AG Lansink, GW Giesen and RB Huirne (2001). “Improving Nutrient Efficiency as a Strategy to Reduce Nutrient Surpluses on Dairy Farms.” Scientific World Journal 2: 866-872.