1. Adam F and Pearson RN (1967) Crop response to lime in the Southern United States and Puerto Rico. In: Adams F and Pearson RN (eds) Soil Acidity and Liming, pp 161?206. Wisconsin USA No 12, American Society of Agronomy
2. Bianchi ML, Burt CM and Ruehr TA (1985) Drip fertilization practices and soil permeability. Proc of the Third Drip/Trickle Irrig Cong. Am Soc Agric Engineers 1: 357?364
3. Black CA (1968) Soil-Plant Relationships. New York, John Wiley and Son Inc. 792 p
4. Blakemore LC, Searle PL and Daly BK (1981) Methods for Chemical Analysis of Soils. N Z Soil Bur Sci Report 10A, DSIR
5. Cameron KC (1985) Potato growing and soil structure. N Z Potato Bull 100: 8?11