| 崔云玲,郭天文,李娟,郭永杰,王成宝.甘肃高寒阴湿区几种土壤养分限制因子研究[J].干旱地区农业研究,2007,(2):58~62 |
| 甘肃高寒阴湿区几种土壤养分限制因子研究 |
| Study on limited nutrient factors of several soils in chilling and humid region of high-elevation of Gansu Province |
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| DOI：10.7606/j.issn.1000-7601.2007.02.13 |
| 中文关键词: 高寒阴湿区 土壤营养诊断 温网室研究 |
| 英文关键词:chilling and humid region of high-elevation soil nutrient diagnose study on green and net-house |
| 基金项目:中加合作NMS项目资助 |
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| 中文摘要: |
| 应用土壤养分状况综合评价法,对甘肃省高寒阴湿区4种主要农田土壤的11种养分状况进行了实验室分析、吸附试验和温室盆栽诊断,结果证明:(1)养分亏缺顺序为扁坡黑麻土N>P>Zn>S,何马家黑麻土N>P>K>S>Mn>Zn,黄绵土P>N>B>Mo>K>S,红粘土N>P>Cu>Mo>S,其它元素可满足作物生长需要。(2)上述方法能较好地用来评价土壤养分状况并能快速和比较准确地确定土壤养分的限制因子及其缺乏程度。 |
| 英文摘要: |
| Based on the soil nutrient systematic approach,11 soil nutrients of 4 major farmlands in the chilling and humid region of high-elevation of Gansu were analyzed in laboratory,tested through absorption experiment,and diagnosed with potted planting in greenhouse.The result shows:the deficit degree is N>P>Zn>S on Haplic Kastanzens of Bianpo,N>P>K>S>Mn>Zn on Haplic Kastanzens of Hemajia,P>N>B>Mo>K>S on Calcaric Cambisois soil,N>P>Cu>Mo>S on Cumulic Anthrosois siol,the other nutrient elements can meet the needs of crops.This method can be well used to evaluate soil nutrient state,quickly to determine the limited factors and deficit degree of soil nutrient. |
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