NUTRIENT MOVEMENT IN THE SOIL
Nurul Azizah Zahraeni, S.P., M.Sc.
Soil Science Study Program
Faculty of Agriculture
Lambung Mangkurat University
1st semester - 3rd meeting
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How much do you know about nutrient movement?
TABLE OF
content
Objective
Introduction
The BIG WHY
Mechanisms of nutrient movement
Interactive component
Conclusion
Objective
Students will be able to describe the forms of nutrients in the soil and the movement of nutrients from the soil to plant tissue.
Remember
DO YOU
???
What are the essential nutrients for plants?
The BIG WHY
It influences what we eat, the environment we live in.
It is not just about soil—it’s about securing the foundation of life: food, health, and sustainability.
"Feed the soil, and let the soil feed the plant." – William Albrecht
How do nutrients in the soil reach plant roots?
Diffusion
Mass flow
Direct contact
High concentration
Mechanisms of nutrient movement
Low concentration
Diffusion
Driving force:
Concentration gradient
Moving of particles from high concentration to low concentration
Mechanisms of nutrient movement
Key nutrients:
Immobile nutrients (P and K)
High concentration
in soil
Low concentration in root zone
Mechanisms of nutrient movement
Movement of nutrients with water flow toward plant roots
flow
Mass
Fully dependent on water movement
Mechanisms of nutrient movement
Nutrients dissolve
in water
Mechanisms of nutrient movement
plant roots physically grow into new soil regions, directly encountering and absorbing nutrients.
DIRECT
CONTACT
Diffusion
Mass flow
Direct contact
Match the nutrients and its movement
A farmer is noticing poor plant growth in sandy soil. What mechanisms of nutrient movement are likely limited, and how can this issue be resolved?
What do you think?
Based on the theory,
Conclusion
Mass flow
Concentration gradient
Diffusion
Absorb with water
Direct contact
Roots grab the nutrients
Understanding nutrient movement is the key to sustainable agriculture!
What have you learned?
Let me
know
The assignment
A farmer applies excessive nitrogen fertilizer to increase crop yield. However, nearby water sources become contaminated with nitrates.
Submit before 8th December 2024 via https://simari.ulm.ac.id
References
Degryse. F and McLaughlin, M.J. (2014). Phosphorus Diffusion from Fertilizer: Visualization, Chemical Measurements, and Modeling. Soil Science Society of America Journal, 78(3), 832-842.
Dotaniya, M.L., Meena, V.D. (2015). Rhizosphere effect on nutrient availability in soil and its uptake by plants: a review. Proc. Natl. Acad. Sci., India, Sect. B Biol. Sci. 85, 1–12.
Havlin, JL, SL Tisdale,JD Beaton, and WL Nelson. 2004. Soil Fertilityand Fertilizers. An Introduction to Nutrient Management. Prentice-Hall Inc., New Jersey.
Marschner, P. and Zed R. (2023). Nutrient availability in soils. Marschner’s Mineral Nutrition of Plants (pp. 499-522). Academic Press.
Thank
you!
Next meeting: The law that apply in nutrient absorption
"Education is the most powerful weapon which you can use to change the world."
-Nelson Mandela