Why should fertilizer application be avoided on compacted soils?

Fertilizer application should be avoided on compacted soils primarily because compacted soils limit water movement and nutrient uptake. In compacted soil, the soil particles are tightly packed together, which reduces the pore spaces between them. This compaction hinders the flow of water and air, creating an environment that is less conducive for root growth and nutrient absorption.

When fertilizers are applied to compacted soil, they may not effectively reach the root zone where plants can utilize them. Additionally, the limited water movement can lead to poor leaching of excess nutrients, increasing the risk of runoff and potential environmental harm. Therefore, to ensure that plants receive the maximum benefit from fertilizers, it's crucial to apply them in soil that is well-aerated and able to facilitate proper water and nutrient movement.