Why use the LSU AgCenter Soil Testing and Plant Analysis Laboratory (STPAL)?
The LSU AgCenter STPAL offers a variety of soil tests and plant tissue diagnostic tests to meet your planning needs for profitable production. Fees charged at STPAL are cheaper than any commercial laboratory on similar tests (View offered tests and fee schedule). The STPAL offers adequate fertilizer recommendations that are based on latest results of Louisiana-specific research. We do not over-recommend fertilization that wastes your money and may cause adverse environmental consequences. In addition, STPAL employs a modern quality assurance program to improve its analytical process for accuracy and efficiency. The STPAL is the only Louisiana laboratory that participates in the well-recognized North American Proficiency Test (NAPT) program and maintains an acceptable level of proficiency (View our NAPT performance). 2. How do I take a soil sample? In general, soils that differ in appearance, crop growth or past treatment should be sampled separately, provided the area is of such size a
The LSU AgCenter STPAL offers a variety of soil tests and plant tissue diagnostic tests to meet your planning needs for profitable production. Fees charged at STPAL are cheaper than any commercial laboratory on similar tests (View offered tests and fee schedule). The STPAL offers adequate fertilizer recommendations based on latest results of Louisiana-specific research. We do not recommend fertilization that wastes your money and may cause adverse environmental consequences. In addition, STPAL uses a modern quality assurance program to improve its analytical process for accuracy and efficiency. The STPAL is the only Louisiana laboratory that participates in the well-recognized North American Proficiency Test (NAPT) program and maintains an acceptable level of proficiency (View our NAPT performance).
