| 长期不同施肥措施下灌漠土养分特征变化分析 |
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| 引用本文： | 杨金钰,许咏梅,孙九胜. 长期不同施肥措施下灌漠土养分特征变化分析[J]. 新疆农业科学, 2022, 59(2): 433-440. DOI: 10.6048/j.issn.1001-4330.2022.02.021 |
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| 作者姓名： | 杨金钰 许咏梅 孙九胜 |
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| 作者单位： | 新疆农业科学院土壤肥料与农业节水研究所,乌鲁木齐 830091 |
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| 基金项目： | 新疆自治区自然科学基金“基于磷脂脂肪酸(PLFA)技术的新疆灌漠土生物肥力特征研究”(2016D01A049) |
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| 摘 要： | [目的]研究长期不同施肥对新疆东部灌漠土养分特征的影响.[方法]以新疆东部吐鲁番肥力长期监测点的黄土状灌漠土为研究对象,选取长期施用有机肥(M)、化肥(NP)、化肥配施有机肥(NP+1/2M、1/4NP+1/3M)、撂荒(CK0)5种典型处理,分析不同施肥措施下,0～20 cm、20～40 cm土壤有机质、全氮、速效氮...
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| 关 键 词： | 长期施肥 灌漠土 土壤养分 |
| 收稿时间： | 2021-04-15 |
Effects of Long-Term Fertilization on Nutrients in Irrigated Desert Soil of Eastern Xinjiang |
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| YANG Jinyu,XU Yongmei,SUN Jiusheng. Effects of Long-Term Fertilization on Nutrients in Irrigated Desert Soil of Eastern Xinjiang[J]. Xinjiang Agricultural Sciences, 2022, 59(2): 433-440. DOI: 10.6048/j.issn.1001-4330.2022.02.021 |
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| Authors: | YANG Jinyu XU Yongmei SUN Jiusheng |
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| Affiliation: | Institute of Soil, Fertilizer and Agricultural Water Conservation, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China |
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| Abstract: | 【Objective】 To clarify the effects of different fertilizer patterns on soil fertility. 【Method】 Soil fertility was analyzed based on a long-term field trial on the irrigation desert soil in the base of Turpan, eastern Xinjiang.There were five fertilizer treaments: bare land(CK),M,NPK and NP+1/2M,1/4NP+1/3M. 【Result】 1) The contents of organic matter in 0-20 cm and 20-40 cm soil were significantly higher than those in other fertilization treatments, and the contents of total nitrogen and available nitrogen in 0-20 cm surface soil were significantly higher than those in other treatments; 2) The contents of organic matter in the surface and subsurface layers were significantly lower than those in the other treatments except that the content of available potassium was significantly higher than that of other treatments.The contents of total nitrogen, available nitrogen and available phosphorus in 0-20 cm soil layer were significantly lower than those in other treatments, but there was no difference in the content of 20-40 cm in subsurface layer.3) The results showed that the total nitrogen and organic matter contents in 0-20 cm soil were significantly higher than those in NP and CK0 treatments.The contents of total nitrogen and available phosphorus in subsurface 20-40 cm soil showed no difference compared with other treatments, but available potassium was significantly lower than that of other fertilization treatments.The contents of total nitrogen, available nitrogen and available P in surface soil of NP + 1/2M treatment were significantly higher than those of CK0 treatment.4) The contents of available N in CK0 were the lowest and significantly lower than those in other treatments.5) The contents of organic matter and available N in the surface soil were higher than those in the subsurface layer.The contents of total nitrogen and available P in the subsurface layer of NP treatment were higher than those in the surface layer.The content of available potassium in the subsurface layer was higher than that in the surface layer in the treatment of reducing the application of chemical fertilizer and organic fertilizer (1/4NP+1/3M). 【Conclusion】 Therefore, in the irrigated desert soil area of eastern Xinjiang, reducing the application of chemical fertilizer and organic fertilizer and appropriate ratio can still maintain soil nutrients at a high level, which is the recommended fertilization method in irrigated desert soil area.The nutrient content of each treatment changes with soil depths, and different fertilization has a strong impact on the shallow soil environment. |
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| Keywords: | long-term fertilization irrigated desert soil soil nutrients |
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