| 摘要: |
| 田间试验的昼夜定时观测发现,不同肥力水平对土壤-植物连续系统水势有明显影响。在一定土壤含水量(200 g /kg左右)下,随着土壤肥力提高,土壤水势有明显降低的趋势;小麦叶片细胞渗透势降低,小麦叶水势和叶片细胞的持水都有所提高。随着气温的升高,土壤-植物体系水势梯度(ψs-p)呈增大趋势。 |
| 关键词: 土壤肥力，植物肥水效应，水势，以肥调水 |
| DOI： |
| 分类号:S158.3 |
| 基金项目: |
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| A Preliminary Study on the Effect of Water and Fertilizer on Soil-plant Continuum |
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| Abstract: |
| Through continuous observation in field experiments, it was discovered
that,with certain soilwater content (200 g /kg or so), soilwater potential and Osmosis
potentials of wheat leaves decreased greatly, and water remained in leaf cells increased
somewhat with soil fertility increment, and the water potential gradient in soil-plant continuum had a tendency to increase with temperature rise. |
| Key words: soil fertility,water and fertilizer effect,water potential,wateraccumulation by fertilizer application |
