Why fertilizers stop working when soil structure degrades

When standard fertilizers fail to produce results and yields drop despite regular feeding, the issue is rarely a simple lack of nutrients. Often, the problem lies in the degradation of soil structure. In this state, minerals remain locked in the ground, physically or chemically inaccessible to the root system. Soil scientist Igor Lytkin explains that the colloquial term "tired soil" actually describes several distinct processes: the collapse of soil architecture, compaction, pH shifts, organic matter depletion, and the buildup of pathogens caused by a lack of crop rotation. Distinguishing between these states requires observing physical behavior. In heavy clay soils, water pools on the surface, leaving a dense crust after rain or irrigation. When squeezed in the hand, this soil forms a hard, clod-like lump that resists crumbling. Sandy soils exhibit the opposite: water drains instantly into deeper layers, leaving the topsoil dry and dust-like.