PPT-Soil Organic Matter and

Decomposition Basic Decomposition Equation Organic compound O 2 or other electron acceptor CO 2 H 2 O energy inorganic nutrients a form of . Healthy soil, strong plants, healthy people. Soil . T. ypes around Brisbane. www.asris.csiro.au. . Brisbane has four main soil types:. dark . alluvial soils. deep red loamy soils. gravelly red and yellow loamy top soils over clay. Lesson two: Soils. Time to observe and learn. You will examine three types of soil:. Clay. Sand. Loam. You will need to read and follow the instructions carefully. After examining the soil types:. What are some ways we can classify soils?. Glomus. sp.) AND ORGANIC MATTER ON CACTUS PEAR (. Opuntia. . albicarpa. ) GROWTH IN TWO SOIL TYPES. Gardezi. , A. K. ., . Márquez-. Berber. , S. R. ., . Figueroa-Sandoval, B. ., . Flores-Magdaleno, . 2004. ) argued that depolymerization and subsequent plant-microbial competition for N-containing organic monomers regulates N availability. Building upon this model, . we present a new conceptual framework arguing that along with depolymerization, mineral-organic associations may proximally regulate the provisioning of bioavailable organic N monomers especially in the rhizosphere. . Glomus. sp.) AND ORGANIC MATTER ON CACTUS PEAR (. Opuntia. . albicarpa. ) GROWTH IN TWO SOIL TYPES. Gardezi. , A. K. ., . Márquez-. Berber. , S. R. ., . Figueroa-Sandoval, B. ., . Flores-Magdaleno, . Care for these RESOURCES. Starting with The Basics!. What is soil. Naturally deposited MIXTURE of:. R. ock particles. “Organic” materials. Air. Water. Soil Components. Soil Components. Air. = Mixture of atmospheric gases. Time to observe and learn. You will examine three types of soil:. Clay. Sand. Loam. You will need to read and follow the instructions carefully. After examining the soil types:. What are some ways we can classify soils?. Objectives. Define: acidity, alkalinity, buffering capacity, soil pH. List and describe inherent factors that affect soil pH. Describe how to manage soil pH. Describe how soil pH affects soil function. Gravel – larger than 2 mm. Sand – 0.05 to 2 mm. Silt – 0.002 to 0.05 mm. Clay – smaller than 0.002 mm. soil. Renewable resource. Renews . very. slowly. 1 cm takes 15 years to form. soil. Importance. s. oil test interpretation. Weston Miller, . OSU Extension Service. Preview of presentation. Safety precautions. General . soil quality assessment . How to take a soil test. What to test for. Interpreting results. 307B. Lecture 8. D. r. Mahmoud Nour El-Dein. Composition of Organic Matter. Soil organic matter plays important role in the maintenance and improvement of soil properties. It is a dynamic material and is one of the major sources of nutrient elements for plants. . Objectives. Define: soil respiration and soil microbes. Explain the role of soil respiration in determining soil health. Diagram the role of soil respiration in the cycle of life on earth. List and explain inherent factors that affect soil respiration. Objectives. Define: soil organic matter. Explain the role of inherent factors affecting soil organic matter. Explain the five soil organic matter management practices. Explain how soil organic matter relates to soil function. Hasanuddin. 1). , . Muyassir. 2). , . Muchlisin. 3). , . Abidin Nur. 4). and Kevin Fitzsimmon. 5).  . 1) . staf . of Brackish-water Aquaculture Development Center. , . Email : hasanuddin_79@yahoo.co.id.