摘要
为评价红壤旱地长期不同施肥方式下土壤肥力水平,基于1986年建立的江西进贤红壤旱地玉米定位试验,选用土壤pH值、有机质含量、有效磷含量、速效钾含量、阳离子交换量5个指标,采用模糊数学和主成分分析方法,评价和比较了连续施肥30年后不同施肥模式下红壤旱地土壤综合肥力水平。结果表明,数据球形假设检验KMO值为0.73,Bartlett值为127.98,Sig<0.01,可以进行主成分分析。土壤肥力综合指数(SNI)以氮磷钾配施猪粪处理最高(0.94),单施猪粪次之(0.92),单施氮肥最低(0.42)。因此,红壤旱地施用有机肥或有机无机肥配施是维持和提高土壤肥力水平的重要措施。
In order to assess the red upland soil fertility under long-term different fertilization patterns, 5 indexes, includingthe soil pH, organic matter content, available phosphorus content, available potassium content and cation exchange capacitywere selected to assess and compare the comprehensive soil fertility under different fertilization patterns after 30 years by fuzzymathematics and principal component analysis in double-maize cropping system from 1986 in red upland soil. The resultsshowed that the KMO of data sphericity test was 0, 73, and the bartlett was 127, 98, the principal component analysis could becarried out with these data. The soil nutrient index （SNI） of application of chemical fertilizer combined with pig manure wasthe highest （0, 94）, followed by single application of pig manure （0, 92）, and the single application of nitrogen fertilizer（0, 42） was the lowest. Therefore, the application of organic manure or organic manure combined chemical fertilizer is wisemeasure to maintain and improve soil fertility in red dryland soil.
作者
杨旭初
叶会财
李大明
余喜初
柳开楼
胡秋萍
胡志华
谷子寒
胡惠文
周利军
黄庆海
林小兵
YANG Xu-chu, YE Hui-cai, LI Da-ming,, YU Xi-chu, LIU Kai-lou, HU Qiu-ping, HU Zhi-hua, GU Zi-han, HU Hui-wen, ZHOU Li-jun, HUANG Qing-hai, LIN Xiao-bing(Jiangxi Institute of Red Soil, National Engineering and TechnologyResearch Center for Red Soil Improvement, Nanchang Jiangxi 33171)
出处
《中国土壤与肥料》
CAS
CSCD
北大核心
2018年第3期79-84,共6页
Soil and Fertilizer Sciences in China
基金
江西现代农业科研协同创新专项(JXXTCX2015003-005)
江西省科技支撑计划项目(20151BBF60060)
国家自然科学基金(41671301)
关键词
长期施肥
红壤旱地
玉米
肥力评价
long-term fertilization
red soil upland
maize
fertility assessments
