| 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 |
| Key Words: chilling and humid region of high-elevation soil nutrient diagnose study on green and net-house |
| Author Name | Affiliation | | CUI Yun-ling | Institute of Soil and Fertilizer Gansu Agricultural Academy Science,Lanzhou,Gansu 730070 | | GUO Tian-wen | Institute of Soil and Fertilizer Gansu Agricultural Academy Science,Lanzhou,Gansu 730070 | | LI Juan | Institute of Soil and Fertilizer Gansu Agricultural Academy Science,Lanzhou,Gansu 730070 | | GUO Yong-jie | Institute of Soil and Fertilizer Gansu Agricultural Academy Science,Lanzhou,Gansu 730070 | | WANG Cheng-bao | Institute of Soil and Fertilizer Gansu Agricultural Academy Science,Lanzhou,Gansu 730070 |
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| Abstract: |
| 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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