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改良剂对旱地红壤pH和有效P含量的影响
引用本文:黄静,;袁颖红,;樊后保,;李丛蕾,;张文锋,;黄欠如,;成艳红.改良剂对旱地红壤pH和有效P含量的影响[J].南昌水专学报,2014(4):49-53.
作者姓名:黄静  ;袁颖红  ;樊后保  ;李丛蕾  ;张文锋  ;黄欠如  ;成艳红
作者单位:[1]南昌工程学院生态与环境科学研究所,江西南昌330099; [2]江西省红壤研究所,江西进贤331717
基金项目:南昌工程学院研究生创新培养基金项目(2014ycxjj-B2-001); 江西省自然科学基金资助项目(20142BAB204016)
摘    要:针对我国南方红壤旱地酸性强,有效P含量低的问题,研究改良剂(生物质炭与过氧化钙)对旱地红壤pH和有效P含量的影响.结果表明施用生物质炭与过氧化钙后,土壤pH得到不同程度的提高,有效磷含量增大,生物质炭与过氧化钙配施效果优于单施,其中C1Ca1(生物质炭758 kg/hm2和过氧化钙61 kg/hm2)处理效果最好,各处理在040 cm土层土壤有效P与pH呈显著相关性.

关 键 词:改良剂  生物质炭  过氧化钙  土壤pH  有效P

A study on effects of amendments on soil pH and available phosphorus of upland red soil
Affiliation:HUANG Jing, YUAN Yinghong, FAN Houbao, LI Conglei, ZHANG Wenfeng, HUANG Qianru, CHENG Yanhong ( 1. Institute of Ecological & Environmental Sciences, Nanchang Institute of Technology, Nanchang 330099, China; 2. Jiangxi Institute of Red Soil, Jinxian 331717, China)
Abstract:Upland red soil in Southern China is usually found to be high in acidity and low in the content of available phosphorus. Therefore,this paper conducts an experiment to study the effect of soil modifiers (biochar and calcium peroxide)on soil pH and soil available phosphorus. The results show that soil pH rises to different degrees and the contents of available phosphorus are increased after the application of biochar and calcium peroxide,and the best effect is obtained from the combined application of both ingre-dients,with C1Ca1(biomass char 758 kg / hm2 and calcium peroxide 61 kg / hm2 )being the best treat-ment. Under the application of amendments,soil available phosphorus has a significant correlation with the soil pH in 0 - 40 cm soil.
Keywords:amendments  biochar  calcium peroxide  soil pH  available phosphorus
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