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

Table 2

Chemical soil properties at 0–15 cm depth (mean ± SE) one month after biosolids application at an abandoned field in Chihuahua, Mexico.

Biosolids rate (Mg ha^−1)	EC^a (dS m^−1)	NO3-N (mg kg^−1)
0	0.76±0.2^b	6.8±1.3^b
10	0.97±0.1^b	11.0±1.6^ab
20	1.01±0.1^b	15.3±3.3^a
30	1.65±0.2^a	14.7±2.8^a

aEC: electrical conductivity. Biosolids rate mean values within each soil property followed by different letters are significantly different (𝑃<0.05; 𝑛=8).