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Acta Agriculturae Universitatis Jiangxiensis. 2014, (03) Core

A Study on the Factors in Limiting Soil Nutrients of Bambusa rigida ForestChinese Full Text

TU Shu-ping;YE Zhang-di;WANG Lei;ZHANG Wen-yuan;HU Xiao-kang;GUO Xiao-min;College of Landscape Architecture and Art,Jiangxi Agricultural University;Forestry Bureau of Jiangxi Ganxian County;Jiangxi Bamboo Germplasm Resources and Use Key Laboratories;Forestry Science Institute of Jiangxi Ganzhou City;

Abstract: The main soil nutrients of Bambus arigida forest in Ganxian County,Jiangxi Province were assessed by soil nutrient systematic approach,using Sorghum bicolor as the indicator plant so as to evaluate the soil nutrient status and its limiting factors.The results showed that organic matter content was low in the soil.P,S,Mg,K,N were severely deficient,but Zn was slightly low.Ca,B,Cu,Fe,Mn were abundant.The amount of the soil adsorption and fixation of P,S,K was large and that of Zn,Cu was small and B,Mn were hardly adsorbed and fixed.The results of pot experiment showed that P was the first limiting factor in Bambus arigida forest soil nutrients,and then followed by S,Mg,K,N.Potted without P,S,Mg,K,N,the crop yield reduced by52.76%,37.88%,37.60%,34.60% and 31.71%,respectively.Thus,the Bambus arigida forest needs more application of organic fertilizers.Applied with adequate N,P,K fertilizers,a certain amount of S,Mg fertilizers is needed,so as order to achieve balanced fertilization.
Keywords：

Bambusa rigida forest; soil nutrient condition; soil nutrient status systematic approach; limiting factors; Kanxian County,Jiangxi Province;

  • DOI：

    10.13836/j.jjau.2014092

  • Series：

  • Subject：

  • Classification Code：

    S795

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