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Opened without an author's link. What you mark goes to a reviewer first.Cattle manure application for 12 and 17 years enhanced depth distribution of soil organic carbon and X-ray computed tomography-derived pore characteristics
2023 · 9 results quoted
high manure (beef dry manure, 2x N requirement; 37.4 Mg/ha in 2020), 17 yr vs control, medium/high inorganic fertilizer, low and medium manure
soil organic carbon and total N concentration · cornHigher
“The HM increased SOC and TN content by 40.1–93.8% as compared to other treatments, at 0–10 cm.” results
high manure (beef dry manure, 2x N requirement; 37.4 Mg/ha in 2020), 17 yr vs medium inorganic fertilizer (136 kg N, 49 kg P2O5, 91.5 kg K2O /ha)
soil organic carbon concentration (treatment main effect, 0-40 cm) · cornHigher23.8 against 16.9 g SOC/kg
“MF 16.9 b 1.1 b 0.812 a 1.207 a 0.654 a 2.466 a" | "HM 23.8 a 1.8 a 0.878 a 1.211 a 0.631 a 2.495 a” table 1
high manure (beef dry manure, 2x N requirement; 37.4 Mg/ha in 2020), 17 yr vs no amendment control
soil organic carbon concentration · cornHigher25 %
“At 10–20 cm, the HM increased SOC content by 25 and 27.7% as compared to the CK and MF, respectively.” results
high manure (beef dry manure, 2x N requirement; 37.4 Mg/ha in 2020), 17 yr vs no amendment control
soil total nitrogen concentration (treatment main effect, 0-40 cm) · cornHigher1.8 against 1.2 g TN/kg
“CK 18.2 ab† 1.2 b 0.818 a 1.209 a 0.644 a 2.460 a" | "HM 23.8 a 1.8 a 0.878 a 1.211 a 0.631 a 2.495 a” table 1
high manure (beef dry manure, 2x N requirement; 37.4 Mg/ha in 2020), 17 yr vs no amendment control
XCT-derived macroporosity (pores > 1000 um ECD; treatment main effect, 0-40 cm) · cornHigher0.02 against 0.014 cm3/cm3
“CK 2176 b† 190 a 1986 b 0.020 c 0.014 b 0.006 c" | "HM 2965 a 242 a 2723 a 0.031 a 0.020 a 0.011 a” table 2
high manure (dairy solid manure, 2x N requirement; 54.8 Mg/ha in 2020), 12 yr vs medium inorganic fertilizer (136 kg N, 49 kg P2O5, 91.5 kg K2O /ha)
soil organic carbon concentration · cornHigher29.4 %
“The LM, MM, and HM treatments increased the SOC content as compared to the MF by 19.6, 11.8, and 29.4%, respectively, at 0–10 cm.” results
low manure (dairy solid manure, P-based rate; 4.4 Mg/ha in 2020), 12 yr vs no amendment control
XCT-derived macroporosity · cornHigher1.7 ratio
“At Brookings site, the macroporosity values of the LM treatment were 1.7, 3.3, and 2.0 times higher than the CK, MF, and HF treatments, respectively, at 0–10 cm (Fig. 2 B).” results
medium manure (dairy solid manure, N-based rate; 27.4 Mg/ha in 2020), 12 yr vs medium inorganic fertilizer (136 kg N, 49 kg P2O5, 91.5 kg K2O /ha)
XCT-derived macroporosity (treatment main effect, 0-40 cm) · cornHigher0.01 against 0.005 cm3/cm3
“MF 977 a 116 a 861 a 0.009 a 0.005 b 0.002 a" | "MM 1421 a 168 a 1253 a 0.017 a 0.010 a 0.004 a” table 2
medium manure (dairy solid manure, N-based rate; 27.4 Mg/ha in 2020), 12 yr vs medium inorganic fertilizer (136 kg N, 49 kg P2O5, 91.5 kg K2O /ha)
XCT-derived total number of macropores per core · cornHigher407 against 234 macropores per core (60 mm x 60 mm ROI)
“MF 2005 bc 826 bc 691 a 387 a 234 b 89 c 76 ab 64 a 1778 bc 737 bc 615 a 323 a" | "MM 3528 a 1358 a 405 c 395 a 407 a 170 a 38 cd 59 a 3121 a 1187 a 367 c 337 a” table 3
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