| 长期定位施肥对黄土旱塬黑垆土土壤酶活性的影响 |
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| 引用本文： | 王淑英,樊庭录,丁宁平,姜小凤,张平良,苏敏.长期定位施肥对黄土旱塬黑垆土土壤酶活性的影响[J].土壤通报,2011(2):307-310. |
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| 作者姓名： | 王淑英 樊庭录 丁宁平 姜小凤 张平良 苏敏 |
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| 作者单位： | 农业部西北作物抗旱栽培与耕作重点开放实验室甘肃省农业科学院;甘肃省平凉市农科所; |
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| 基金项目： | 甘肃省自然科学基金项目(2007GS02474); 中科院西部之光项目(0711RJYA03); 国家自然科学基金地区科学基金项目(40961022)资助 |
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| 摘 要： | 以30年(1979~2008年)肥料长期定位试验为基础,探讨长期定位施肥对黄土旱塬黑垆土土壤酶活性的影响及不同土壤酶间相关性。结果表明:SNP和MNP处理可提高土酶蔗糖酶活性,比不施肥对照分别增加19.98%、19.14%;土壤脲酶活性单施M效果最佳,较对照提高30.72%,MNP和SNP处理优于其它处理;MNP提高碱性磷酸酶活性的效果最好、增幅196.5%,单施M和SNP效果次之;单施N可提高土壤蛋白酶活性,较对照增加28.3%,而施P有抑制黄土旱塬黑垆土蛋白酶活性的作用。脲酶与碱性磷酸酶呈显著正相关,相关系数为0.7241,过氧化氢酶与碱性磷酸酶、脲酶呈显著负相关。综合考虑,长期有机-无机NP肥配施是促进黄土旱塬黑垆土土壤良性循环、提高耕地质量的有效施肥管理措施。
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| 关 键 词： | 长期定位施肥 相关性 土壤酶活性 耕地质量 |
Effect of Long-term Fertilization on Soil Enzyme Activities in Dryland Black Humus Soil in the Loess Plateau |
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| WANG Shu-ying ,FAN Ting-lu ,DING Ping-ning ,JIANG Xiao-feng ,ZHANG Ping-liang ,SU Min.Effect of Long-term Fertilization on Soil Enzyme Activities in Dryland Black Humus Soil in the Loess Plateau[J].Chinese Journal of Soil Science,2011(2):307-310. |
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| Authors: | WANG Shu-ying FAN Ting-lu DING Ping-ning JIANG Xiao-feng ZHANG Ping-liang SU Min |
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| Institution: | WANG Shu-ying 1,FAN Ting-lu 1,DING Ping-ning 2,JIANG Xiao-feng 1,ZHANG Ping-liang 1,SU Min 1(1.Northwest Drought Crop Cultivation and Farming Key Laboratory in the Ministry of Agriculture,People's Republic of China,Gansu Academy of Agricultural Sciences,Lanzhou Gansu 730070 China,2.Pingliang City Institute of Agricultural Sciences,Pingliang Gansu 744000 China) |
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| Abstract: | Effects of long-term fertilization on soil enzyme activities in dryland black humus soil in the Loess Plateau was studied based on the long-term fertilization experiment from 1979 to 2008.The results showed that nitrogen and phosphorus with farmer manure(MNP),nitrogen and phosphorus with straw(SNP) could improve the soil invertase activity compared with no fertilizer(control) increased by 19.98%,19.14%.Farmer manure(M) had a great effect on soil urease activities increased by 30.72% compared to the control,... |
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| Keywords: | Long-term fertilization Correlation Soil enzyme activity Quality of arable land |
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