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 | Why should I use a soil test? To achieve maximum crop yields while using the minimum of water, fertilizer and other inputs. Different plants remove different nutrients at different rates throughout the growing season. Worse yet, some soils readily leach out nutrients while other soils rapidly tie up nutrients into compounds that are not readily available to the plant. By the end of the season, there could be little available nutrients left. Proper soil nutritional balance can reduce water usage by 40 to 60 percent and dramatically reduce fertilizer requirements. YOU CAN’T GUESS about fertilizer application and expect to attain the best economic yields and plant quality. Why are TPSL's tests and recommendations superior? TPSL uses the Carbon Dioxide (CO2) extraction method because it mimics the way plants naturally take up nutrients in every soil type. This method was developed in 1845 by Charles G.B. Daubeny of Oxford, England and was one of the first extraction methods. It was not until the 20th Century that analytical technologies advanced to allow the method to be further developed by the universities of Arizona and Florida, and others. TPSL has continued to build upon and develop those earlier works for more than 40 years. Utilizing the Carbon Dioxide (CO2) extraction method reveals the amounts of existing nutrients that are actually available to the plant, as well as what nutrients are not available as they are tied up in other compounds. Other labs tell you only the total content, much of which may be unavailable to the plant. This explains why more recent testing methods may show certain nutrients as adequate or high, yet the plants show deficiencies in those same nutrients – and why you may see the same test results, year after year. With our tests you get recommendations for correcting problems and building healthy, live soils using the Albrecht System of fertility balancing – specifically for your soil, your plants and your cultivation practice – whether Conventional, Sustainable or Organic. See an example report here. In addition to the Carbon Dioxide (CO2) extraction method, Texas Plant and Soil Lab employs other methods to conduct nutrient analysis, including DTPA, Mehlich III, Ammonium Acetate and other methods. Please contact us today at 956-383-0739 and speak with us |
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