Soil Fertility - Texas A&M AgriLife

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Retail Fertilizer Material Prices(January 2003 vs. 2009)$/Toon$/PoundSource 03’ 08’ 09’ 03’ 08’ 09’82-0-0 0( (ammonia) 240 630 375 01 0.15 038 0.38 023 0.2346-0-0 (urea) 250 531 345 0.27 0.58 0.3832-0-0 (UAN) 180 410 390 0.28 0.64 0.6118-46-0 (DAP) 295 995 480 0.23 0.78 0.380-0-60 (potash) 170 550 814 0.14 0.46 0.68
Effect of Nitrogen Fertilizer on <strong>Soil</strong> pH(Lufkin soil, Overton, Tx.)Average Affter 3 YearsNoneAmmonium nitratet5.96.2Ammonium sulfate4.70 12 3 4 5 6 7pH
Page 5: Essential Elements Found to Limit P
Page 9 and 10: Grazingvs.HayMost of the nutrientsa
Page 11 and 12: FertilizerSelectionSppring rate (lb
Page 14 and 15: Effect of Soil pH onNutrient Recove
Page 16 and 17: ‣ Neutralizing ValueLimestonee Qu
Page 18 and 19: Effect of Nittrogen Rateon Yield an
Page 22 and 23: PhospphorusCharacteristicstis and d
Page 24: Injected - 6 inches Surface Applied
Page 27 and 28: Phosphorus FertilizerOrdinary super
Page 29 and 30: Potassium Deficiency- Stand ddeclin
Page 31 and 32: Sources ofNutrients• Selected Com
Page 33 and 34: Elemental Concenttrations in Variou
Page 35 and 36: Typical Appllication Rates• Shoul
Page 37 and 38: Disadvantagees of Manures• Unwant
Page 39 and 40: Soil Amendment or SNAKE OIL?
Page 41 and 42: Types of SoilAmendments• Biologic
Page 43 and 44: Biological inoculaants and activato
Page 45 and 46: Mineral Nutrrient Sources• Bayflo
Page 47 and 48: WettingAgents• Basic H• Satural
Page 49 and 50: Research Comparing Soil Amendmentst
Page 51 and 52: Lilly, North Carolina, 1978orn Yiel
Page 53 and 54: Effects of Huumic Acid onTifton 85
Page 55 and 56: FertilizerProductsGrasshopper 30-10
Page 57 and 58: Advanntages• No advantages were f
Page 59 and 60: Traditional Soiil Amendments• Man
Page 61 and 62: Proceddure forTaking Sooil SamplesF
Page 63 and 64: Proceddure forTaking Sooil SamplesC
Page 65 and 66: http://soilcrop.tamu.edutamu
Page 67: Effect of P Rate onYield of Improve

Soil Fertility - Texas A&M AgriLife

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