Soil organic matter dynamics after 27 years of different tillage-residue management in northern Mexico
<|begin_of_text|><|start_header_id|>system<|end_header_id|> You are a research archivist expert in dataset metadata. Answer the question truthfully.  <|eot_id|><|start_header_id|>user<|end_header_id|> Here is the Description of a dataset. Description:'We examined soil organic matter (OM) dynamics in a wheat (Triticum durum L.) ��� maize (Zea mays L.) irrigated bed planting system established in 1992 at the Campo Experimental Norman E. Borlaug (CENEB) near Ciudad Obreg��n, Sonora, Mexico (27��33���N, 109��09���W; elevation 38 m). The location has an arid subtropical climate with a mean annual temperature of 23.7 ��C and average precipitation of 311 mm. Treatments included conventionally tilled raised beds (CTB) with residue incorporated (CTB-I) and permanent raised beds (PB) with residue burned (PB-B), removed (PB-R), partly retained (PB-P) or fully retained (PB-K) receiving 0, 150, or 300 kg N/ha. We sampled surface soil (0-15 cm) in 2019 and compared soil organic C (OC), total N (TN), and ��13C distribution in the whole-soil as well as within light- (LF) and mineral-associated OM (M' . Please return only a json list of at most 3 Keywords corresponding to the Description:.<|eot_id|><|start_header_id|>assistant<|end_header_id|> {"Answer" : ["Conservation agriculture","CPMAS 13C NMR","MAOM","Soil ��13C","Soil organic carbon","Vertisols","Yaqui Valley"]} <|eot_id|>
 Here is the Description of a dataset. Description:'We examined soil organic matter (OM) dynamics in a wheat (Triticum durum L.) ��� maize (Zea mays L.) irrigated bed planting system established in 1992 at the Campo Experimental Norman E. Borlaug (CENEB) near Ciudad Obreg��n, Sonora, Mexico (27��33���N, 109��09���W; elevation 38 m). The location has an arid subtropical climate with a mean annual temperature of 23.7 ��C and average precipitation of 311 mm. Treatments included conventionally tilled raised beds (CTB) with residue incorporated (CTB-I) and permanent raised beds (PB) with residue burned (PB-B), removed (PB-R), partly retained (PB-P) or fully retained (PB-K) receiving 0, 150, or 300 kg N/ha. We sampled surface soil (0-15 cm) in 2019 and compared soil organic C (OC), total N (TN), and ��13C distribution in the whole-soil as well as within light- (LF) and mineral-associated OM (M' . Please return only a json list of at most 3 Keywords corresponding to the Description:.
We examined soil organic matter (OM) dynamics in a wheat (Triticum durum L.) ��� maize (Zea mays L.) irrigated bed planting system established in 1992 at the Campo Experimental Norman E. Borlaug (CENEB) near Ciudad Obreg��n, Sonora, Mexico (27��33���N, 109��09���W; elevation 38 m). The location has an arid subtropical climate with a mean annual temperature of 23.7 ��C and average precipitation of 311 mm. Treatments included conventionally tilled raised beds (CTB) with residue incorporated (CTB-I) and permanent raised beds (PB) with residue burned (PB-B), removed (PB-R), partly retained (PB-P) or fully retained (PB-K) receiving 0, 150, or 300 kg N/ha. We sampled surface soil (0-15 cm) in 2019 and compared soil organic C (OC), total N (TN), and ��13C distribution in the whole-soil as well as within light- (LF) and mineral-associated OM (M
Conservation agriculture; CPMAS 13C NMR; MAOM; Soil ��13C; Soil organic carbon; Vertisols; Yaqui Valley