TY - JOUR JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 175 LP - 175 DO - 10.48044/joa.1978.4.8.175 VL - 4 IS - 8 A2 - , Y1 - 1978/08/01 UR - http://auf.isa-arbor.com/content/4/8/175.abstract N2 - Baumgardt, J.P. 1978. Soil chemistry and structure as related to water. Grounds Maintenance 13(3): 24, 26, 30, 32.Water occurs in soil in several forms. Following a rain considerable free water is found in the spaces between soil particles. But not all soil water coating particles is held loosely. A very thin layer of bound water covers each particle or, in the case of humus matter, the faces of the spongy materials. This water is unavailable to plants, being held by molecular forces to the particles. It pays to know the structure and chemistry of your particular soil. Only by knowing your soil profile can you make the most of an irrigation program. You can also manage an optimum fertilizing program based on plant needs, leaching, and soil retention. ER -