I've been in discusssions about spring fertilizer purchases, and one supplier suggested the following custom blend: 25% Ammonium Sulfate 25% Methylene Urea 50% Biosolids 10% Sulfur I Know - that's 110%! Soil analyses are all very similar. Here's a recent one: ph = 8.0 Phosporus - 47 ppm - High Potassium - 192 ppm - High Calcium - 64356 ppm - Very High Mn - 683 - high Salinity - 266 - none Zinc - 2.55 - High Iron - 6.30 - High Mg - 4.07 - High Sodium - 372 - Low Sulphur - 98 - High The fertilizer works out to a 16-2-0 analysis. Cost is high = $1.96/MSF I'm a little wary about no K at all for summer heat stress . . . and it gets hot here in Central TX. But it sounds like a pretty good mix for my area. Opinions?