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Looking to Unearth More from Your Soil?
In the world of agriculture, every element plays a pivotal role. From the unseen nutrients in the soil to the precise composition of fertilizers, understanding these components is essential for thriving crops. Yet, obtaining accurate and timely data can be challenging, leaving many agronomists and researchers searching for reliable solutions.
At LECO, we specialize in transforming complex analyses into straightforward, actionable insights. Our state-of-the-art instruments are designed to accurately and efficiently assess carbon, nitrogen, and sulfur levels in soils, fertilizers, and plant tissues, empowering confidence in every decision.
Additionally, our Thermogravimetric Analysis (TGA) and Total Organic Carbon (TOC) analysis solutions provide in-depth data on material composition and organic content, further enhancing your analytical capabilities.
Join the community of professionals who trust LECO to enhance their agricultural practices. Scroll further to discover how our solutions can nurture success within your soil, ensuring precision and efficiency every step of the way.
Soil Webinar Series
Cultivate Confidence in Your Analyses with Our Webinars
Register for our expert-led webinars and grow your soil analysis knowledge. From advanced techniques to best practices, discover how to optimize your lab’s performance and achieve consistent, reliable results.
July 17, 2025 | 10:00 AM EST
Thermogravimetric Determination of Moisture and Ash in Soils and Plant Tissue Materials.
Presenter: Jeffery Gast, Lead Analytical Chemist – LECO
Soil Profiling
Browse our selection of app notes below to see real-world examples of how our analyzers perform when put to the test.
Carbon and Nitrogen in Soils
Acid Digestion and Combustion
Temperature Differentiation
Moisture and Ash in Soils
Determination of Total Carbon and Nitrogen in Soils
Testing for total carbon and nitrogen in arable soils can provide valuable information regarding fertilization needs that can be used to make fertilization management decisions for the soil. Carbon content in soils can represent the presence of organic matter and is used to estimate nitrogen availability from natural decay. Nitrogen is one of the most important elements for plant development and is the one most often found to be deficient in arable soils. While carbon in almost any form is a benefit to the soil, the benefits are heightened with the right ratio of nitrogen.
Determination of Total Organic Carbon in Soil by Acid Digestion and Combustion
Total organic carbon (TOC) determination in soil is a common and important analytical tool because TOC content can directly affect plant growth. It works as both a source of energy and a trigger for nutrient availability through mineralization.
Determination of Total Organic Carbon in Soil by Temperature Differentiation
Total organic carbon (TOC) determination in soil is a common and important analytical tool because TOC content can directly affect plant growth. It works as both a source of energy and a trigger for nutrient availability through mineralization. The temperature-dependent method requires minimal sample pretreatment and no acidification, removing hazardous chemicals and time-consuming acid digestions from the process.
Determination of Moisture and Ash in Soils
Soil water content plays an important role in groundwater recharge and soil chemistry. The amount of moisture or soil water is important as it serves as a solvent and carrier of food nutrients for plant growth, allows microorganisms to perform metabolic activities important for releasing nutrients in the soil, and regulates soil temperature. Additionally, the determination of a variety of analytically important constituents within soil (carbon, nitrogen, sulfur, etc.) requires moisture correction utilizing an accurate moisture value. Ash determination can be utilized to calculate the organic matter content of soils.
The LECO Difference
Trusted expertise, groundbreaking technology, and a commitment to your success.
Fast Analysis Time
Elemental results in 5 mins or less.
Versatility
Technique can be applied to soils, sediments, fertilizers, and waste materials.
Precision and Accuracy
Relatively low detection limits with a high degree of precision.
Best in Class Service
We dedicate ourselves to your success through unmatched support, training, and fast service.
Featured Instruments
C832 / SC832
High-Precision Carbon/Sulfur Analyzer
CN928 / 828
Combustion Analyzers for Difficult Matrices
RC612
Multiphase Carbon and Water Analyzer
TGM800
Thermogravimetric Moisture Determinator
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