How Long-Term Chemical Fertilization of Sloping Cropland Enhances Yield and Fertility without Compromising Coil Structure | |
Bowker, Matthew1; Xu, Mingxiang2; Li, Qiang3; Xu, MX (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dry Land Farming, 26 Xinong RD, Yangling 712100, Shaanxi, Peoples R China. | |
刊名 | POLISH JOURNAL OF ENVIRONMENTAL STUDIES
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2017 | |
卷号 | 26期号:4页码:1797-1807 |
关键词 | Soil Nitrogen Fractions Physical Properties Soil Organic Carbon Soil Microbial Biomass Carbon Optimal Fertilizer Treatment |
ISSN号 | 1230-1485 |
DOI | 10.15244/pjoes/69031 |
文献子类 | Article |
英文摘要 | We studied the effects of the long-term (17 years) application of different chemical fertilizer regimes on soil N and its inorganic fractions in relation to the soil physical properties in a sloping cropland in the hilly Loess Plateau. Seven treatments comprised of two factors were arranged within a randomized complete block design. As expected, crop yield increased 2-4-fold, but soil structure did not degrade. Under long-term fertilization, the portion of the small aggregates (<2 mm) and sand content were significantly decreased while the large aggregates (>2 mm) and the silt content increased by 276% and 7.4%, respectively, as compared with those in areas without fertilization. Moreover, the various continuous chemical fertilization treatments increased SOC content by 12.9% and total N by 12.4%, on average, compared with unfertilized plots. The SOC, total N, and shoot C, shoot N had close relationships with the large aggregates (>2 mm) and the clay content. The results suggest that, in this setting, the long-term addition of both N and P may sustain soil quality of an infertile sloping cropland in this region, compared to agriculture without fertilizer or applications of N alone. |
学科主题 | Environmental Sciences & Ecology |
URL标识 | 查看原文 |
出版地 | OLSZTYN 5 |
语种 | 英语 |
出版者 | HARD |
资助机构 | Special Program for Basic Research of the Ministry of Science and Technology, China [2014FY210100]; Key Research Program of the Chinese Academy of Sciences [KJZD-EW-TZ-G10]; National Natural Science Foundation of China [41171422] ; Special Program for Basic Research of the Ministry of Science and Technology, China [2014FY210100]; Key Research Program of the Chinese Academy of Sciences [KJZD-EW-TZ-G10]; National Natural Science Foundation of China [41171422] ; Special Program for Basic Research of the Ministry of Science and Technology, China [2014FY210100]; Key Research Program of the Chinese Academy of Sciences [KJZD-EW-TZ-G10]; National Natural Science Foundation of China [41171422] ; Special Program for Basic Research of the Ministry of Science and Technology, China [2014FY210100]; Key Research Program of the Chinese Academy of Sciences [KJZD-EW-TZ-G10]; National Natural Science Foundation of China [41171422] |
内容类型 | 期刊论文 |
源URL | [http://ir.iswc.ac.cn/handle/361005/8084] ![]() |
专题 | 水保所科研产出--SCI_2017--SCI |
通讯作者 | Xu, MX (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dry Land Farming, 26 Xinong RD, Yangling 712100, Shaanxi, Peoples R China. |
作者单位 | 1.No Arizona Univ, Sch Forestry, Flagstaff, AZ 86011 USA 2.Northwest A&F Univ, State Key Lab Soil Eros & Dry Land Farming, 26 Xinong RD, Yangling 712100, Shaanxi, Peoples R China 3.Yulin Univ, Coll Life Sci, 4 Chongwen RD, Yulin 719000, Shaanxi, Peoples R China |
推荐引用方式 GB/T 7714 | Bowker, Matthew,Xu, Mingxiang,Li, Qiang,et al. How Long-Term Chemical Fertilization of Sloping Cropland Enhances Yield and Fertility without Compromising Coil Structure[J]. POLISH JOURNAL OF ENVIRONMENTAL STUDIES,2017,26(4):1797-1807. |
APA | Bowker, Matthew,Xu, Mingxiang,Li, Qiang,&Xu, MX .(2017).How Long-Term Chemical Fertilization of Sloping Cropland Enhances Yield and Fertility without Compromising Coil Structure.POLISH JOURNAL OF ENVIRONMENTAL STUDIES,26(4),1797-1807. |
MLA | Bowker, Matthew,et al."How Long-Term Chemical Fertilization of Sloping Cropland Enhances Yield and Fertility without Compromising Coil Structure".POLISH JOURNAL OF ENVIRONMENTAL STUDIES 26.4(2017):1797-1807. |
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