Han Ruilian,Hou Qingchun,Yang Guang.Effecting of Photosynthesis and Water Character of small old Tree by Fertilization[J].Research of Soil and Water Conservation,1994,1(03):72-76.
施肥对“小老树”水分特征及光合能力的影响
- Title:
- Effecting of Photosynthesis and Water Character of small old Tree by Fertilization
- 摘要:
- 本文以神木、固原两个试验点小叶杨“小老树”林木为试验材料，施用氮、磷肥处理。在生长季内测定施肥对其水分代谢，叶形态和光合能力影响。结果表明，施肥后叶水势、叶含水量和束缚水，蒸腾速率均有所升高。施用氮、磷后叶子扩展速率有不同程度的加快，单叶面积增加明显，氮肥在改善水分与光合作用方面比磷肥更有效。
- Abstract:
- Populus small old tree that grows In Gu yuan and Shenmu was studied in the paper.They were fertized N and P.The changes of water metabolism leaf and phothsynthesis weredetermined after fertilization the result show:Leaf water potential,leaf content of water,leafband water and transpiration.Lear megnifying rate increase in different extent after fertilization,single leaf area increase,leaf chang thiner,photosynthesis rate and net accomplaitbiomass increase markly.Nitrogen is better than P in improving small oldtree.
参考文献/References:
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[2] 侯庆春.黄旭，韩仕峰等.Ⅱ、土壤水分和养分状况及其与小老树生长的关系.水土保持学报1991(5):2
[3] 侯庆春，黄旭，韩仕峰等.Ⅲ、小老树成因及其改造途径.水土保持学报1991(5):4
[4] Morgan,J. M. the Effect of N nutrition on the water relation and gas exchange characteristics of wheat. Plant physiol. 1986
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备注/Memo
收稿日期:1994-8-30;改回日期:。