| 磷肥施用方式对长白落叶松播种苗生长的影响 |
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| 引用本文： | 孙宇,李国雷,刘勇,马履一,贾忠奎,祝燕.磷肥施用方式对长白落叶松播种苗生长的影响[J].南京林业大学学报(自然科学版),2011,0(5):16-20. |
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| 作者姓名： | 孙宇 李国雷 刘勇 马履一 贾忠奎 祝燕 |
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| 作者单位： | 1. 北京林业大学,省部共建森林培育与保护教育部重点实验室,北京,100083
2. 吉林省吉林市龙潭区江密峰苗圃,吉林,吉林,132206 |
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| 基金项目： | 中央高校基本科研业务费专项资金项目(BLJD200905); “十一五”国家科技支撑计划(2006BAD24B01); 国家自然科学基金项目(30972353) |
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| 摘 要： | 以长白落叶松播种苗(1-0)为试验材料,采用裂区设计,主区为磷肥量,副区为水施比例,研究了磷肥量和水施比例对苗木生长和磷吸收的影响。结果表明:各组织磷浓度、磷肥利用率在3个磷肥处理间差异显著,其中各组织磷浓度在326 kg／hm2磷肥处理下达到最大,而磷肥利用率则在最小磷肥量163 kg／hm2处理下达到最大,平均值为43 ％,并且随磷肥量的增大而逐渐降低;各组织磷质量分数、磷含量以及磷肥利用率在5种水施比例间差异达到显著水平,并且在333 ％水施比例处理下达到最大,其中全磷含量平均值为0079 g／株,磷肥利用率平均值为43 ％。因此在326 kg／hm2磷肥施用量下,将2／3磷肥用做底肥,1／3磷肥用于水施追肥为最佳长白落叶松播种苗磷肥施肥方式。
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| 关 键 词： | 长白落叶松 播种苗 水施 条施 磷肥 |
Effects of phosphorus applying method on growth of Larix olgensis sowed seedlings |
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| SUN Yu,LI Guolei,LIU Yong,MA Luyi,JIA Zhongkui,ZHU Yan.Effects of phosphorus applying method on growth of Larix olgensis sowed seedlings[J].Journal of Nanjing Forestry University(Natural Sciences ),2011,0(5):16-20. |
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| Authors: | SUN Yu LI Guolei LIU Yong MA Luyi JIA Zhongkui ZHU Yan |
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| Affiliation: | SUN Yu1,LI Guolei1,LIU Yong1,MA Lüyi1,JIA Zhongkui2,ZHU Yan1(1.Key Laboratory for Silviculture and Conservation of the Ministry of Education,Beijing Forestry University,Beijing 100083,China,2.Jilin City Jiangmifeng Nursery of Jilin Province,Jilin 132206,China) |
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| Abstract: | Phosphorus(P) is hard to dissolve and be absorbed for plants.To improve the P efficiency and find the best P applying method,Larix olgensis sowed seedlings(1-0) were used to study the growth effect and P-uptaking by seedlings affected by P amounts and fertigation ratios.The experiment conducted the split-spot design,with P amounts as main treatment and fertigation ratios as side treatment.The results showed that P concentration,P content,phosphorus using efficency was affected by phosphorus amounts signific... |
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| Keywords: | Larix olgensis sowed seedlings fertigation band-placed phosphorus |
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