Effects of mid-spring applications of nitrogen on an irrigated pasture

摘要

The effects of spring-applied nitrogen were measured in 2 years on an irrigated pasture, with and without added potassium. The rates of N were approximately 0, 16, 32, and 65 lb per acre per annum in single dressings and 97 lb (reduced to 65 lb in the second year) split in 6 dressings.