The 4Rs (Right Source, Right Rate, Right Time, Right Place)

The 4Rs—Right Source, Right Rate, Right Time, and Right Place—are principles for effective nutrient management in agriculture or gardening. "Right Source" means choosing the appropriate fertilizer or nutrient for your specific plants. "Right Rate" involves applying the correct amount needed for optimal growth without waste or runoff. "Right Time" refers to administering nutrients when plants need them most, often during key growth stages. "Right Place" ensures nutrients are accessible to plants’ roots, minimizing losses. Together, these principles promote healthy plant growth, improve yields, and protect the environment by applying nutrients efficiently and responsibly.