Establishment of Native Grasses with Biosolids on Abandoned Croplands in Chihuahua, Mexico

Figure 2

Grass density of blue grama (Bouteloua gracilis) and green sprangletop (Leptochloa dubia) under different biosolids rates during four years at a seeded abandoned field in Chihuahua, Mexico. 𝑌_{Green-sprangletop}=3.02+0.707𝑥−0.017𝑥², 𝑃=0.001, 𝑟²=0.89, 𝑛=24; 𝑌_Blue-grama=8.47−0.213𝑥, 𝑃=0.0001,𝑟²=0.92, 𝑛=24.