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

Table 3

Grass density (plants m⁻²; mean ± SE) under different biosolids rates and two methods of biosolids application at a seeded abandoned field in Chihuahua, Mexico.

Biosolids rate (Mg ha^−1)	BioInc^a	BioSur
0	5.6±0.7^bcA	6.0±0.7^abA
10	8.0±0.7^aA	7.6±0.7^aA
20	4.9±0.7^cB	7.3±0.7^aA
30	7.2±0.7^abA	4.5±0.7^bB

aBioInc: soil-incorporated method; BioSur: surface-applied method. Biosolids rate mean values followed by different lowercase letters within each method of application are significantly different (𝑃<0.05; 𝑛=24). Method of application mean values followed by different uppercase letters within each biosolids rate are significantly different (𝑃<0.05; 𝑛=24).