Black Holes: Facts, Theory & Definition. Black holes are some of the strangest and most fascinating objects found in outer space. They are objects of extreme density, with such strong gravitational attraction that even light cannot escape from their grasp if it comes near enough.
Chemigation is the injection any chemical such as nitrogen, phosphorus or a pesticide into irrigation water and applied to the land using the irrigation system. The proper use of chemigation is recognized as a Best Management Practice (BMP) for irrigated agriculture.
Reduced Application Costs â In general, cost of application by chemigation is about one-third the cost of conventional application methods. Improved Management â Timely applications of small but precise amounts of fertilizer directly to the root zone allow growers to effectively manage fertilizer programs.