Residual Effects of Biosolids Application on Forage Production of Semiarid Grassland in Jalisco, Mexico

Figure 2

Total forage production as affected by biosolids rate and year on a semiarid grassland in Jalisco, Mexico (𝑌₂₀₀₃=569.05+125.88𝑥−0.6101𝑥²,  𝑟²=0.97,  𝑃=0.0290;  𝑌₂₀₀₄=1,668.5+40.045𝑥,  𝑟²=0.94,  𝑃=0.0001;  𝑌₂₀₀₅=522.97+37.19𝑥−0.22𝑥²,  𝑟²=0.96,  𝑃=0.0369;  𝑌₂₀₀₆=617.5+27.09𝑥,  𝑟²=0.96,  𝑃=0.0001).