Fact Sheets

Soil Sampling Guidelines: Importance of Proper Soil Sampling

This publication discusses the importance of proper soil sampling techniques for sample testing.

Don’t Guess, Soil Test!

Soil testing eliminates the guess work and reveals exactly how much fertilizer or lime is needed for specific plants to be grown in a particular soil type.

Why Soil Organic Matter Matters

Organic matter is the cornerstone for healthy, fertile soils.

Strategies To Increase Organic Matter in the Soil

Organic matter is the organic part of the soil and the most important indicator of soil health. Organic matter can be enhanced through agricultural practices.

Fertilizer Recommendations for Pastures in Louisiana: N-P-K-S

This fact sheet provides nitrogen (N), phosphorus (P), potassium (K) and sulfur (S) recommendations for specific forages.

Fertilizer Recommendations for Field Crops in Louisiana: N-P-K-S

Nitrogen (N), phosphorus (P), potassium (K) and sulfur (S) recommendations for corn, cotton, oat, rice, rye, sorghum, soybean, sugarcane and wheat.

Soil Sampling, Testing and Test Interpretation for Fertilizer Recommendations

Learn how to optimize crop yields with regular Mehlich-3 soil testing every crop rotation or 2-3 years, tailored to Louisiana's nutrient sufficiency guidelines.

Soil Acidity, Liming Materials and Lime Recommendations

Soil pH management insights from LSU AgCenter: Lime tailored to buffering capacity and crop needs influences efficient pH adjustment and long-term soil health.