Sulfur: An overlooked essential plant nutrient

Abstract

Sulfur is an essential macronutrient that plays a crucial role in plant growth, protein synthesis, and enzyme activity. Historically, atmospheric deposition contributed to soil sulfur levels, but stricter environmental regulations and intensive farming have led to widespread deficiencies. Sulfur depletion is especially common in sandy soils with low organic matter, where leaching is prevalent. Deficient crops exhibit symptoms like chlorosis, stunted growth, and delayed maturity, severely impacting yield and quality. Oilseeds and legumes, which have high sulfur demands, are particularly affected. Understanding sulfur dynamics in soil and adopting efficient fertilization strategies is essential for maintaining crop productivity. This article explores sulfur sources, deficiency symptoms, and sustainable management practices in agriculture.