Sustaining Soil Fertility: Exploring the Long-Term Effects of Chemical Fertilizers and Farmyard Manure Application

Long-term fertilizer and manure experiments serve as invaluable resources for investigating various aspects of agriculture and soil management. These experiments provide a wealth of information on yield trends, nutrient dynamics, and soil nutrient balances. They also help in predicting a soil’s carrying capacity, assessing soil quality, and evaluating the sustainability of agricultural systems. Long-term fertilizer experiments play a crucial role in separating the complex interactions among soils, plants, climate, and management practices and shedding light on their impacts on crop productivity. Long-term fertilizer experiments were initiated in the early 1970s, and they have been periodically evaluated since then. The continuous, long-term use of chemical fertilizers and manures is highly influencing the chemical nature and fertility status of the soil.