| 聚合物类保水剂对山杏水肥利用效应的影响 |
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| 引用本文： | 王文静,王百田,吕钊,王明玉,张文源,舒鑫,刘金壮.聚合物类保水剂对山杏水肥利用效应的影响[J].水土保持通报,2013(5):280-284. |
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| 作者姓名： | 王文静 王百田 吕钊 王明玉 张文源 舒鑫 刘金壮 |
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| 作者单位： | 北京林业大学水土保持学院 北京 100083;北京林业大学水土保持学院 北京 100083;水土保持与荒漠化防治教育部重点实验室 北京 100083;北京林业大学水土保持学院 北京 100083;北京林业大学水土保持学院 北京 100083;北京林业大学水土保持学院 北京 100083;北京林业大学水土保持学院 北京 100083;北京林业大学水土保持学院 北京 100083 |
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| 基金项目： | “十二五”规划项目“近期黄土丘陵沟壑区节水防蚀水土保持林研究与示范”(2011BAB38B0602) |
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| 摘 要： | 研究了不同用量保水剂处理对干旱胁迫下山杏(Armenia casibirica)叶水势、根部氮磷钾及生物量(地上部分生物量、地下部分生物量、总生物量)、根冠比的影响。结果表明，不同处理下叶水势受到不同程度促进，且促进程度随保水剂用量增大而增大。山杏根部氮磷钾含量，因不同处理均有所变化，其中，氮含量变化最显著，随保水剂用量增大而增大。保水剂20g下氮含量是对照的1.66倍，钾含量基本无变化，而磷含量随保水剂用量增大而降低。处理可使山杏总生物量和地上部分生物量增大，而对照组的地下部分生物量和根冠比最大。山杏叶水势和根部氮含量相关性显著。研究结果表明，保水剂和复合肥的混施显著促进了山杏生长，其原因可能是其保水保肥及缓释的作用。
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| 关 键 词： | 保水剂 干旱胁迫 山杏 叶水势 生物量 氮磷钾含量 |
| 收稿时间： | 2012/12/23 0:00:00 |
| 修稿时间： | 2013/1/12 0:00:00 |
Effects of Super Absorbent Polymer on Water and Fertilizer Use of Prunus Armeniaca |
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| WANG Wen-jing,WANG Bai-tian,LV Zhao,WANG Ming-yu,ZHANG Wen-yuan,SHU Xin and LIU Jin-zhuang.Effects of Super Absorbent Polymer on Water and Fertilizer Use of Prunus Armeniaca[J].Bulletin of Soil and Water Conservation,2013(5):280-284. |
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| Authors: | WANG Wen-jing WANG Bai-tian LV Zhao WANG Ming-yu ZHANG Wen-yuan SHU Xin and LIU Jin-zhuang |
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| Institution: | College of Soil and Water Conservation Beijing Forestry University Beijing 100083 China;College of Soil and Water Conservation Beijing Forestry University Beijing 100083 China;Key Laboratory of Soil and Water Conservation and Desertification Combating of the Ministry of Education Beijing 100083 China;College of Soil and Water Conservation Beijing Forestry University Beijing 100083 China;College of Soil and Water Conservation Beijing Forestry University Beijing 100083 China;College of Soil and Water Conservation Beijing Forestry University Beijing 100083 China;College of Soil and Water Conservation Beijing Forestry University Beijing 100083 China;College of Soil and Water Conservation Beijing Forestry University Beijing 100083 China |
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| Abstract: | The effects of different doses of super K in root and biomass(ground biomass,undo absorbent polymer(SAP) on leaf water potential,N,P and (ground biomass,total biomass),and root/shoot ratio of Prunus armeniaca were investigated in the Jiufeng experimental base.Leaf water potential of Prunus armeniaca was stimulated by SAP in a dose-dependent manner.The contents of N,P and K varied with different treatments.Specifically,the content of N increased significantly with the increase of SAP;N level under treatment of 20 g SAP was 1.66 times the contrast;K almost did not change;and the content of P was inhibited by SAP treatment.Total biomass and ground biomass increased in SAP treatment,whereas the maximums of underground biomass and root/shoot ratio occurred in contrast test.The content of N had a positive correlation with leaf water potential.The results suggest that the reason for good growth may be the water and fertilizer conservation effects of SAP on Prunus armeniaca. |
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| Keywords: | super absorbent polymer CSAP) drought stress Prunus armeniaca leaf water potential biomass the contents of N P and K |
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