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Survey and Study of Soil Nutrients of Sugarcane Field in Southern Guangxi

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To survey and analyze soil nutrients of sugarcane field in southern Guangxi and provide basic data for reasonable land use and scientific fertilization,combining GIS technology,a total of 498 samples of topsoil of typical soil types in southern Guangxi sugarcane planting areas were collected and soil nutrients were measured. Survey results indicate that the pH value of 95％ soil in southern Guangxi is lower than 6. 5; acid soil is major soil type of sugarcane planting areas in southern Guangxi; the organic matter content is 6. 03 - 44. 58 g /kg; alkali-hydrolyzable N is 14. 0 - 175. 0 mg /kg; available P is 1. 7 - 95. 0 mg /kg; available K is 11. 0 - 358. 0 mg /kg; the content of most nutrients remains at medium level,and there is still a large gap with high-yield soil condition. In various trace elements,the average content of B is 0. 24 mg /kg, - 98％ soil lacks B; the average content of available Mg is 62. 34 mg /kg and 69. 08％ soil lacks Mg; the average content of active Ca is 592. 68 mg /kg and the active Ca is relatively low in 54. 84％ soil; the average content of available Zn is 0. 93 mg /kg,and 19. 08％ soil lacks Zn; the average content of available Cu is 0. 65 mg /kg,and 7. 02％ soil lacks Cu. It is concluded that the overall soil fertility of sugarcane planting areas in southern Guangxi is not high,the organic matter is relatively low,the content of rapidly available N,P and K is at medium or low level, the content of Fe and Mn is high,and the available Cu and available Zn of most soil remain at medium level.

SugarcaneSoil nutrientsSurvey

Yan ZENG、Jinsheng HUANG、Rulin XIE、Liuqiang ZHOU、Yongxian LIU、Yumo TAN、Hongwei TAN

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Agricultural Resource and Environment Research Institute,Guangxi Academy of Agricultural Sciences,Nanning 530007,China

Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences,Nanning 530007,China

Supported by Guangxi Science Cooperation ProjectSpecial Basic Scientific Research Project of Guangxi Academy of Agricultural SciencesSpecial Basic Scientific Research Project of Guangxi Academy of Agricultural SciencesSpecial Basic Scientific Research Project of Guangxi Academy of Agricultural SciencesSpecial Project for Science and Technology of Ministry of Water ResourcesNatural Science Foundation Project of GuangxiIPNI

14125008-2-152013YM192014JZ182013YF062013GXNSFBA019057

2015

ISSN：
年,卷(期)：2015.(6)
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