Effects of long-term different fertilization on soil aggregates and organic carbon fractions on sloping upland of purple soil

被引：0
|
作者：
Hua, Keke [1 ]
Zhu, Bo [2 ]
Yang, Xiaolin [3 ]
Wang, Xiaoguo [2 ]
机构：
[1] Soil and Fertilizer Research Institute, Anhui Academy of Agricultural Sciences, Hefei,230031, China
[2] Institute of Mountain Hazards and Environment, Chinese Academy of Science, Chengdu,610041, China
[3] Safety and Emergency Management Research Center, Henan Polytechnic University, Jiaozuo,454003, China
来源：
Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery | 2014年 / 45卷 / 10期
关键词：
Biogeochemistry - Biological materials - Fertilizers - Aggregates - Manures - Grain (agricultural product) - Landforms - Soils - Crops - Minerals;
D O I：
10.6041/j.issn.1000-1298.2014.10.026
中图分类号：
学科分类号：
摘要：
Long-term fertilization has a significant impact on soil organic carbon (SOC) stock. However, fertilization impact on physical fractions of SOC is still poorly understood on sloping upland of purple soil in the central Sichuan Basin, southwestern China. Therefore, this study assessed the impact of long-term different fertilization on soil aggregates distribution and its organic carbon factions under an intensive wheat (Triticum Aestivium L.)-maize (Zea mays L.) cropping system through four fertilization treatments, no fertilizer (CK), applied mineral fertilizer (NPK), pig manure matched with mineral fertilizer (OMNPK), and crop straw residue matched with mineral fertilizer (RSDNPK). Soil samples from 0~20 cm soil layer were separated into four soil aggregations (>2 mm large macroaggregates-LM, 0.25~2 mm small macroaggregates-SM,
引用
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页码：167 / 174
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