more... > Commercial Horticulture > Turfgrass > Soil & Fertility > Dealing With Salinity Soil salts affect turf mostly by withholding moisture from plant tissues. They may also compete for uptake of nutrient ions. Try these suggestions to manage a soil salinity situation. Ironing Your Turfgrass Although the earth’s crust is about 5% iron (Fe), we still see iron deficiency in plants. This may be because of a problem with the plant roots, soil and/or environment. This publication includes tips on how to care for your turfgrass. Iron Chlorosis in Lawns [Image: fe] Iron chlorosis results when green chlorophyll in leaf tissue fails to develop properly. Iron chlorosis first develops in new growth and as the condition worsens, leaves appear yellow or almost white. Considerations for Sand-based Turfgrass [Image: lsu] Sports turf grown on a sand-based root zone requires special attention since it is sand and not soil. This management is more like a hydroponic culture.  more articles... Problem Areas in Athletic Turf and Golf Greens [Image: Golf green sample] Soil compaction and lack of aeration (anaerobiosis) are death on turf. Jefferson, Orleans Soil Contamination May Not Be As Serious As Feared LSU AgCenter experts say soil contamination in Jefferson and Orleans parishes from flooding after this summer’s hurricanes may not be as serious as originally feared. Initial results of tests conducted in October indicate no need for special preparations to the soils prior to planting and that there should be no danger for individuals digging or planting in the soil. Phosphorus Management in Louisiana Turfgrass [Image: Red coloring from anthocyanin pigments] Phosphorus (P) is a major essential nutrient in plants and soils, but is often eyed as an element of concern. Following our BMPs for P fertilization should yield adequate growth, color and pest resistance without harmful pressures on our water’s quality. Calculating Fertilizer Application Rates The analysis or "formula" listed on the fertilizer bags tells you what is inside. This information lets you apply the proper amount of fertilizer. Acid Soil Problems and Strategies [Image: St. Augustinegrass] The soil's pH (acidity level) is a basic foundation of soil fertility and productivity. It is 'step one' in plant production. Layering in Soils [Image: layer] Layering of very different soil types creates root problems. If you can, always avoid sodding a sand-based root-zone area with native-soil-based sod.