The recommended rate of annual nitrogen application is 2 to 3 lbs. of actual nitrogen per 1000 square feet (1 – 2 kg/100 sq m) split into two applications. Slow-release nitrogen fertilizers are the best source of nitrogen since they prevent rapid lush growth. The first application of nitrogen should be made approximately 3 weeks following ‘greenup’ and then 8 weeks later. Excessive nitrogen fertilization of buffalograss increases weed pressure and mowing thus defeating the purpose of a low-maintenance turfgrass.
Many consumers will put a combination of pre-emergence herbicide and fertilizer prior to green-up because of product availability in retail outlets. Because this fertilizer also contains a herbicide the problems associated with weed competition are avoided. Phosphorous and potassium should be maintained at adequate levels to ensure root growth and overall improved turfgrass quality. Test the soil every three years to identify any nutrient problems and correct accordingly.