This study tests if filling a 4″ dia. x 6″ cylindrical hole under an emitter with course sand to direct water underground will reduce surface evaporation: study results in 33-40% reduction.

This study compares the use of traditional surface drip in contrast with drilling holes of about 8″ and 16″ and filling them with either sand or compost and analyzing effectiveness. ┬áThis project demonstrates reduced surface moisture and improved water content subsurface.

This study tests if using the commercially available deep drip subsurface irrigation spike can save water while maintaining a viable crop.

This study discusses the importance of irrigation use in the offseason.

This study tests how adding different sources of carbon to the soil influences soil microbial properties.

The main purpose of this study was to determine the effect of woody biochar amendment (yellow pine from pyrolysis at 400 degrees C) on the water holding capacity of loamy sand soil with different mixture rates….High percentage mixtures of biochar increase water holding capacity.