回归分析法测定土壤有效养分校正系数相关性研究
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摘要
通过"3414"方法对20个多年多点肥效试验结果分析,进一步验证土壤有效养分校正系数与土壤养分测定值呈极显著的负相关性,经回归分析建立两者之间的最佳回归模型,可以用于校正施肥量估算公式中的有效养分校正系数值,为精确估算主要农作物施肥量和制定施肥配方提供科学依据。
Twenty experiment results of fertilizer efficiency for many locations and years were analyzed with "3414" method.The significant negative correlation between correction coefficient and measured value of soil nutrient was verified,and then,the best regression model between these two was established,to check the correction coefficient of estimation function for fertilization amount.This study can provide scientific basis for accurate calculation and formulation drafting of main crop fertilization.
Twenty experiment results of fertilizer efficiency for many locations and years were analyzed with "3414" method.The significant negative correlation between correction coefficient and measured value of soil nutrient was verified,and then,the best regression model between these two was established,to check the correction coefficient of estimation function for fertilization amount.This study can provide scientific basis for accurate calculation and formulation drafting of main crop fertilization.
引文
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[2]姜娟,李金凤,路颖,等.玉米测土配方施肥技术参数研究[J].土壤通报,2008,39(4):878~880.Jiang Juan,Li Jinfeng,Lu Ying,et al.The parameters in soil test and recommended fertilization for corn[J].Chinese Journal of Soil Science,2008,39(4):878~880.
[3]孔祥斌,张凤荣,徐艳,等.河北省曲周县盐渍土区土壤养分含量的动态变化[J].农村生态环境,2003,19(3):35~37.
[4]张健,陈凤,濮励杰,等.区域土地利用变化对土壤磷含量的影响评价研究[J].生态环境,2007,16(3):1018~1023.Zhang Jian,Chen Feng,Pu Lijie,et al.Effect of the changes in regional land use on soil phosphorus content[J].Ecology and Environment,2007,16(3):1018~1023.
[5]邢月华,汪仁,安景文.土壤养分测定值与其校正系数的回归关系[J].辽宁农业科学,2005,(2):45~46.
[6]朱兆良.推荐氮肥适宜施用量的方法论刍议[J].植物营养与肥料学报,2006,12(1):1~4.Zhu Zhaoliang.On the methodology of recommendation for the application rate of chemical fertilizer nitrogen to crop[J].Plant Nutrition and Fertilizer Science,2006,12(1):1~4.
[7]丛爽.面向MATLAB工具箱的神经网络理论与应用[M].合肥:中国科技大学出版社,1998.
[8]李士勇.模糊控制·神经网络和智能控制论[M].哈尔滨:哈尔滨工业大学出版社.1996.
[9]王利环.基于GIS的土壤肥力信息系统的设计[J].山西农业大学学报(自然科学版),2006,26(S1):11~13.Wang Lihuan.The design of soil fertility information system based on GIS[J].Journal of Shanxi Agricultural University(Natural Science Edition),2006,26(S1):11~13.
[10]刘中伟,刘中宏.WEBGIS的解决方案及开发方法[J].长春科技大学学报,2002,30(1):102~104.Liu Zhongwei,Liu Zhonghong.WebGISs solution and developing method[J].Journal of Changchun University of Science and Technology,2002,30(1):102~104.
[11]杨连志,刘佐,黄风来,等.平衡施肥技术体系的研究和实践[J].天津农林科技,2001,(4):11~15.
[12]刘小勇,盛建东.地理信息系统与精确农业[J].新疆农机化,2001,(6):33~34.
[13]金中仁,成建权,沈健.农业信息化与精确农业[J].中国图书馆学报,2003,29(4):40~43.Jin Zhongren,Cheng Jianquan,Shen Jian,et al.Agricultural informatization and accurate agriculture[J].Journal of Library Science in China,2003,29(4):40~43.
[14]索全义,孙智,白光哲.精准农业下的土城养分管理——3S技术在施肥中的应用[J].内蒙古农业科技,2001,(S3):22~24.
[15]张效朴,李伟波,詹其厚.吉林黑土上肥料施用量对玉米产量及肥料利用率的影响[J].玉米科学,2000,8(2):70~74.