Sample interview questions: How do you assess and monitor soil health and fertility in your research?
Sample answer:
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Soil sampling: Collect soil samples from different depths and locations in the study area. Analyze these samples for various physical, chemical, and biological properties, including texture, pH, organic matter content, nutrient levels (such as nitrogen, phosphorus, and potassium), microbial biomass, and enzyme activity.
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Soil physical properties: Assess soil texture, structure, porosity, and bulk density. These properties influence water infiltration, root penetration, and nutrient availability.
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Soil chemical properties: Determine soil pH, electrical conductivity, cation exchange capacity, and nutrient levels. Soil pH affects nutrient availability and microbial activity, while electrical conductivity indicates the presence of soluble salts. Cation exchange capacity influences the soil’s ability to hold and release nutrients.
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Soil biological properties: Measure microbial biomass, respiration, and enzyme activity. Microbial biomass is an indicator of soil health and fertility, while respiration and enzyme activity reflect the level of microbia… Read full answer
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