| 土壤EUF──N、P与玉米生长量及其氮磷吸收量相关性研究 |
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| 引用本文： | 同延安,吕殿青,任志学.土壤EUF──N、P与玉米生长量及其氮磷吸收量相关性研究[J].西北农业学报,1995,4(2):64-68. |
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| 作者姓名： | 同延安 吕殿青 任志学 |
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| 作者单位： | 陕西省农科院土肥所, 杨陵712100;陕西省农科院土肥所, 杨陵712100;陕西省农科院土肥所, 杨陵712100 |
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| 摘 要： | 对ＥＵＦ（电超滤法）－Ｎ、Ｐ测定值与盆栽试验玉米生物学产量及植株氮磷吸收量之间的相关性研究结果表明，ＥＵＦ－Ｎ，Ｐ与植株氮，磷吸收量的相关性达极显著水平，ＥＵＦ－Ｎ（Ｎ－ＮＯ３＾－），Ｐ与碱解氮，Ｏｌｓｅｎ－Ｐ均达极显著相关，ＥＵＦ－Ｎ，Ｐ可作为土壤供氮，磷能力的强度和容量指标，适合于石灰性土壤有效氮，磷养分的提取。
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| 关 键 词： | 玉米 生长量 氮 磷 电超滤法 肥料吸收量 |
| 收稿时间： | 1994/4/14 0:00:00 |
THE COBKELATION BETWEEN EUF-N, P IN SOIL AND CORN BIOMASS, N P UPTAKE |
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| Tong Yan''an,L&#; Dianqing and Ren Zhixue.THE COBKELATION BETWEEN EUF-N, P IN SOIL AND CORN BIOMASS, N P UPTAKE[J].Acta Agriculturae Boreali-occidentalis Sinica,1995,4(2):64-68. |
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| Authors: | Tong Yan'an L&#; Dianqing and Ren Zhixue |
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| Institution: | Shaanxi Aeadermy of Agri. Sci., Soil and Fertillzer Institute, Yangling 712100;Shaanxi Aeadermy of Agri. Sci., Soil and Fertillzer Institute, Yangling 712100;Shaanxi Aeadermy of Agri. Sci., Soil and Fertillzer Institute, Yangling 712100 |
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| Abstract: | Correlation between EUF (Electro-ultrafiltration) -N,P and corn biomass production in the pot planting,amount of N,P uptaken by plants was studied.The results shown that correlation between corn biomass production and alkali-hydrolyzable nitrogen,Olsen-P,EUF-P,EUF-N-N3- was very significance.EUF-N,P and amount of N,P uptaken by plant,EUF-N-N3-,P and alkali-hydrolyzable nitrogen,Olsen-P were very significance respectively.It suggested that amount of EUF-N,P could be the index of N,P supplying on intensity and capacity from soil to plant.So,it was a suitable extraction method in available N,P determination in calcareous soil. |
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| Keywords: | EUF-N P Correlation Biomass production N P uptake |
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