基于<sup>31</sup>P-NMR的延边州东部两市苹果梨园土壤磷化合物变化

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Abstract

Aiming at soil in apple-pear orchard of Hunchun city and Helong city in the east of Korean Autonomous Prefecture of Yanbian of Jilin Province, the authors mined soil profile in apple-pear orchard, collected soil samples from different soil genetic horizon according to soil properties. We studied the change trend of phosphorus compound in different horizons of orchard soil by ³¹P nuclear magnetic resonance spectroscopy (NMR). The results indicated that phosphorus compounds of orchard soil of Hunchun and Helong were composed of orthophosphate, orthophosphate monoester and pyrophosphate (orthophosphate>orthophosphate monoester >pyrophosphate). Compared with apple-pear orchard of Hunchun, the horizons of A and AB contained orthophosphate diester. With increasing of depth of soil horizon, the percentage of orthophosphate of phosphorus compound was increased as well. The percentage of orthophosphate was more than 80% in the deepest soil of the two orchards. In contrast with orthophosphate,by the increase on depth of soil horizon, the percentage of orthophosphate monoester to phosphorus compound reduced. The soil horizon with the most percentage of pyrophosphate was AB horizon in soil of the two apple-pear orchards in Hunchun and Helong. The abundance of orthophosphate monoester in soil of apple-pear orchard of Helong was significantly higher than that in Hunchun.

Key words： apple-pear orchard phosphorus compounds ³¹P nuclear magnetic resonance(³¹P-NMR) spectroscopy

Received: 19 September 2016 Published: 10 July 2017

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	Articles by authors
	Bo QIN
	Jinfeng HUANG
	Tongliang XU
	Xiuhong XIE
	Yunjiang LIANG

Cite this article:

Bo QIN,Jinfeng HUANG,Tongliang XU, et al. Change of Soil Phosphorus Compound of Apple-pear Orchards in the East of Two Cities in Korean Autonomous Prefecture of Yanbian[J]. Research and Exploration in Laboratory, 2017, 36(5): 17-20.

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http://www.qk.sjtu.edu.cn/rel/EN/ OR http://www.qk.sjtu.edu.cn/rel/EN/Y2017/V36/I5/17

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