Mulching Effects on Labile Soil Organic Nitrogen Pools under a Spring Maize Cropping System in Semiarid Farmland
文献类型：期刊论文
| 作者 | Luo, Shasha; Zhu, Lin; Liu, Jianliang; Bu, Lingduo; Yue, Shanchao; Shen, Yufang; Li, Shiqing |
| 刊名 | AGRONOMY JOURNAL
 |
| 出版日期 | 2015 |
| 卷号 | 107期号:4页码:1465-1472 |
| 关键词 | WATER-USE EFFICIENCY GRAVEL-SAND MULCH LOESS PLATEAU MICROBIAL BIOMASS PLASTIC FILM NORTHWESTERN CHINA FOREST SOILS RIDGE-FURROW YIELD CARBON |
| 产权排序 | 3 |
| 通讯作者 | Li, SQ (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China. |
| 合作状况 | 国内 |
| 英文摘要 | Understanding the response of labile soil organic nitrogen (SON) pools to soil surface mulching is essential in identifying changes in soil N availability. Three treatments included non-mulched (CK), gravel-mulched (GM), and plastic film-mulched (FM), based on a 5-yr spring maize (Zea mays L.) field experiment in northwestern China. Compared with the CK, the GM and FM treatments significantly increased the grain yield and aboveground biomass, while had no effect on the soil organic carbon (SOC) and total nitrogen (TN) contents aft er 5 yr of this study. Compared with the CK, the GM and FM treatments significantly decreased light fraction organic N by 12.2 and 6.5 mg kg(-1), respectively, and extractable organic N by 7.7 and 9.3 mg kg(-1) in the 0- to 20-cm layer; while significantly increased water soluble organic N by 1.6 and 1.5 mg kg(-1) in the 0-to 20-cm layer, respectively, and by 1.3 and 1.2 mg kg(-1) in the 20- to 40-cm layer aft er 4 yr of this study. Meanwhile, the FM treatment significantly increased the microbial biomass N by 19.5 mg kg(-1) in the 0-to 20-cm layer compared with the CK aft er 4 yr of this study. In general, the GM and FM treatments increased maize productivity without detriment to the SOC and TN balance compared with the CK. The FM treatment displayed greater effects on enhancing crop yield and increasing labile SON pools than GM. It is suitable to choose plastic film mulching over gravel mulching to have increases in crop yields and improvements in soil N availability in semiarid farmland. |
| 学科主题 | Agriculture |
| 类目[WOS] | Agronomy |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://210.75.237.14/handle/351003/27516]  |
| 专题 | 成都生物研究所_生态研究 |
| 推荐引用方式 GB/T 7714 | Luo, Shasha,Zhu, Lin,Liu, Jianliang,et al. Mulching Effects on Labile Soil Organic Nitrogen Pools under a Spring Maize Cropping System in Semiarid Farmland[J]. AGRONOMY JOURNAL,2015,107(4):1465-1472. |
| APA | Luo, Shasha.,Zhu, Lin.,Liu, Jianliang.,Bu, Lingduo.,Yue, Shanchao.,...&Li, Shiqing.(2015).Mulching Effects on Labile Soil Organic Nitrogen Pools under a Spring Maize Cropping System in Semiarid Farmland.AGRONOMY JOURNAL,107(4),1465-1472. |
| MLA | Luo, Shasha,et al."Mulching Effects on Labile Soil Organic Nitrogen Pools under a Spring Maize Cropping System in Semiarid Farmland".AGRONOMY JOURNAL 107.4(2015):1465-1472. |
入库方式： OAI收割
来源：成都生物研究所
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