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요약정보
茶园红壤磷素形态组成特点及其影响因素研究 / Study on Phosphorus Forms and Their Influencing Factors in Tea Garden Red Soil
Resource Type
Academic Journal
Authors
谢国雄
;
阮弋飞
;
邬奇峰
;
Xie Guoxiong
;
Ruan Yifei
;
Wu Qifeng
Source
农学学报 / JOURNAL OF AGRICULTURE
. 11(9):38-44
Subject
茶园红壤;磷形态;有机肥;成土母质;有效磷
Language
Chinese
ISSN
1007-7774
Online Access
Find it @ DONGA
초록
为了解茶园土壤磷素化学形态特点及磷的生物有效性,从浙江省境内采集35个代表性茶园红壤,详细鉴定土壤磷素形态,并与周围的荒地红壤进行比较.结果表明,茶园红壤磷素以无机磷为主,有机磷与无机磷占全磷的比例平均分别为27.39%和72.61%,有机磷占全磷的比例与土壤有机碳含量呈正相关.茶园红壤有机磷主要为中度活性有机磷与中度稳定性有机磷为主,高度稳定性有机磷和活性有机磷占比较低;无机磷以闭蓄态磷为主,其次为铁磷和铝磷,钙结合态磷含量较低.Ca2-P、Al-P和Fe-P占全磷的比例随土壤磷素积累而提高,施用有机肥可促进茶园红壤有机磷、Ca2-P和Al-P的形成.与荒坡红壤比较,茶园红壤具较高的有机磷、Ca2-P和Al-P.土壤有效磷与Ca2-P、Al-P的相关性最高.
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