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Greenhouse soils are tested more often than field soils.

Coarse-textured soils are usually higher in organic matter than fine-textured soils.

The fertility program is very similar for field crops and container plants.

Tropical soils which contain oxide clays are more fertile than temperate soils with silicate clays.

What causes greater runoff on urban landscapes?

The plant is actively taking up nutrients from the soil. What pool must those nutrients be in to be readily available?

Applying fresh organic matter with a high C:N ratio can cause immobilization of nitrogen.

You are at a farm that has soil with a high cation exchange capacity, such as a loam soil. You are applying a pesticide to that soil. Would you need to apply a higher or lower rate to account for the higher CEC?

Primary macronutrients are distinguished from micronutrients by the fact that

Soil samples for most crops and plants are taken from the top _____ inches of soil.