Nitrate leaching on loess soils in north-west China: Appropriate fertilizer rates for winter wheat
文献类型：期刊论文
| 作者 | Xue Xiaohui ; Hao Mingde |
| 刊名 | ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE
 |
| 出版日期 | 2011 |
| 卷号 | 61期号:3页码:253-263 |
| 关键词 | Continuous wheat fertilizer application rate nitrate leaching nitrogen phosphorus rain-fed agriculture area |
| 通讯作者 | Hao, MD |
| 英文摘要 | Nitrate leaching is an important factor affecting N fertilizer consumption in the agroecosystem of the Loess Plateau of China. Therefore, the movement and residual amounts of nitrate within the soil profile under different fertilizer application rates were studied to determine the most appropriate rates of fertilizer application. Soil samples were collected from a longterm experimental site to determine the concentration of nitrate in mid-September 1999 and 2007. The results showed that NO(3)(-)-N had moved more than 100 cm down the soil profile from 1999 to 2007, and two peaks of NO(3)(-)-N were present at different depths after 23 years of high rates of N application. NO(3)(-)-N had leached to depths exceeding 300 cm in plots where > 90 kg ha(-1) N had been applied alone. At the fertilization rate of 180 kg N ha(-1), up to 1500 kg ha(-1) residual NO(3)(-)-N was detected, equivalent to 34.8% of the total input of N fertilizer during the experiment. The total amount of residual nitrate increased with increases in the N application rate, but decreased with increases in P(2)O(5) application when the N application was up to 90 kg ha(-1) or more. The results indicate that fertilization using a 1: 1 mixture of N: P(2)O(5) at 90 kg ha(-1) p.a. could prevent NO(3)(-)-N from leaching in soil used to grow continuous winter wheat (Triticum aestivum L.) crops in the rain-fed agricultural areas of China, while providing optimum yields. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2012-06-01 |
| 源URL | [http://ir.iswc.ac.cn/handle/361005/4728]  |
| 专题 | 水土保持研究所_水保所知识产出(1956-2013) |
| 推荐引用方式 GB/T 7714 | Xue Xiaohui,Hao Mingde. Nitrate leaching on loess soils in north-west China: Appropriate fertilizer rates for winter wheat[J]. ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE,2011,61(3):253-263. |
| APA | Xue Xiaohui,&Hao Mingde.(2011).Nitrate leaching on loess soils in north-west China: Appropriate fertilizer rates for winter wheat.ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE,61(3),253-263. |
| MLA | Xue Xiaohui,et al."Nitrate leaching on loess soils in north-west China: Appropriate fertilizer rates for winter wheat".ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE 61.3(2011):253-263. |
入库方式： OAI收割
来源：水土保持研究所
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