TY - JOUR
T1 - Continuous maize cultivation with high nitrogen fertilizers associated with the formation of dried soil layers in the semiarid farmland on the Loess Plateau
AU - Wang, Linlin
AU - Zechariah, Effah
AU - Fudjoe, Setor Kwami
AU - Li, Lingling
AU - Xie, Junhong
AU - Luo, Zhuzhu
AU - Cai, Liqun
AU - Khan, Shahbaz
AU - Xu, Weizhou
AU - Chen, Yinglong
N1 - Funding Information:
This work was supported by the National Key R&D Program of China (2021YFD1900700), the National Natural Science Foundation of China (42167008), the Fuxi young funds of Gansu Agricultural University (GAUfx-04Y09), the Natural Science Foundation of Gansu Province (21JR7RA813), and the Innovation Capability Support Program of Shaanxi Province (2021KJXX-53).
Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2022/10/1
Y1 - 2022/10/1
N2 - Sustainable agriculture ensures food security and combats climate change by minimizing reliance on water resources. Maize (Zea mays L.) is commonly grown with plastic mulching practice on the Loess Plateau of China, but its impact on soil desiccation is not well understood. We compared the effects of different land-use, including 17-year continuous wheat cultivation, 19-year pea-wheat rotations, 12-year continuous maize cultivation (high yield), 30-year multi-crop rotations, and 9-year continuous maize cultivation (varying yield) under four nitrogen (N) fertilization rates (i.e., 0, 100, 200, and 300 kg N ha−1). Average crop evapotranspiration during 2009–2020 for long-term continuous wheat, pea-wheat rotation, high-yielding maize, and multi-crop rotations was 222, 201, 277, and 393 mm, respectively, while average effective precipitation from March to September was 329 mm for all treatments. Continuous high-yielding maize cultivation formed a dry soil layer (DSL) in the deep soil profile (>400 cm), which was not found in other cultivation modes. After 9-year continuous high-yielding maize cultivation, 300 kg N ha−1 applying (20.9 Mg ha−1 biomass yield) formed the DSLs in the 360–960 cm soil profiles, while under 200 kg N ha−1 (20.1 Mg ha−1 biomass yield), the soil water content was almost close to the threshold of DSL in the 600–740 cm soil depth; while under 0 and 100 kg N ha−1 (
AB - Sustainable agriculture ensures food security and combats climate change by minimizing reliance on water resources. Maize (Zea mays L.) is commonly grown with plastic mulching practice on the Loess Plateau of China, but its impact on soil desiccation is not well understood. We compared the effects of different land-use, including 17-year continuous wheat cultivation, 19-year pea-wheat rotations, 12-year continuous maize cultivation (high yield), 30-year multi-crop rotations, and 9-year continuous maize cultivation (varying yield) under four nitrogen (N) fertilization rates (i.e., 0, 100, 200, and 300 kg N ha−1). Average crop evapotranspiration during 2009–2020 for long-term continuous wheat, pea-wheat rotation, high-yielding maize, and multi-crop rotations was 222, 201, 277, and 393 mm, respectively, while average effective precipitation from March to September was 329 mm for all treatments. Continuous high-yielding maize cultivation formed a dry soil layer (DSL) in the deep soil profile (>400 cm), which was not found in other cultivation modes. After 9-year continuous high-yielding maize cultivation, 300 kg N ha−1 applying (20.9 Mg ha−1 biomass yield) formed the DSLs in the 360–960 cm soil profiles, while under 200 kg N ha−1 (20.1 Mg ha−1 biomass yield), the soil water content was almost close to the threshold of DSL in the 600–740 cm soil depth; while under 0 and 100 kg N ha−1 (
KW - Dried soil layer
KW - Maize
KW - Soil desiccation index
KW - Soil water balance
KW - Soil water content
UR - http://www.scopus.com/inward/record.url?scp=85136556892&partnerID=8YFLogxK
U2 - 10.1016/j.jhydrol.2022.128324
DO - 10.1016/j.jhydrol.2022.128324
M3 - Article
AN - SCOPUS:85136556892
SN - 0022-1694
VL - 613
JO - Journal of Hydrology
JF - Journal of Hydrology
M1 - 128324
ER -