河南农业科学2017，Vol.46Issue(12)：149-158,10.DOI:10.15933/j.cnki.1004-3268.2017.12.028
DSSAT模型对长期保护性耕作与土壤改良措施下玉米生长过程的模拟及验证
Simulation and Verification of the Effects of DSSAT Model in Maize Growth Process under Long-term Conservation Tillage and Soil Improvement Measures
摘要
Abstract
The DSSAT model is used to simulate the growing of summer maize under long-term conservation tillage and soil improvement measures in cinnamon soil in western Henan province to validate and evaluate the applicability of DSSAT model,and provide basis for application of this model on summer maize of this area.This study was based on soil moisture,leaf area index,biomass and yield of summer maize field experiments,including conventional tillage,subsoiling,straw returning,organic fertilizer treatments,which were conducted at water-saving agriculture Yuzhou experimental base of Henan Academy of Agricultural Aciences in 2013.The GULE (Generalized Likelihood Uncertainty Estimation) which is embedded in DSSAT 4.6 was combined with all treatments during 2013 to calibrate maize genetic parameter,and then verified by soil moisture,leaf area index,biomass and yield of summer maize under all treatments of 2015.The results showed that the RRMSE and ARE of simulation leaf area index,biomass and yield in 2013 wereboth less than 16％ during the model calibration process.In the verification processthe RRMSE and ARE between measured values and simulated values of yield were 1.3％-12.6％ and 0.8％-12.4％ respectively in 2015.The RRMSE and ARE between measured values and simulated values of biomass were 3.0％-7.3％ and 2.6％-5.3％,while the RRMSE and ARE between measured values and simulated values of leaf area index were 2.5％-3.3％ and 3.6％-7.6％.In addition,there was better correlation between yield of simulation and measurement suggesting the consistence of simulated and measured yield in different treatments.In conclusion,the CERES-Maize model can simulate the growth process,biomass and yield of summer maize well at cinnamon soil in western Henan province.关键词
DSSAT模型/玉米/深松/秸秆还田/有机肥/产量Key words
DSSAT model/maize/subsoiling/straw returning/organic fertilizer/yield分类
农业科技引用本文复制引用
杨永辉,武继承,丁晋利,张洁梅,高翠民,潘晓莹,王越,何方..DSSAT模型对长期保护性耕作与土壤改良措施下玉米生长过程的模拟及验证[J].河南农业科学,2017,46(12):149-158,10.基金项目
国家863计划项目(2013AA102904-2) （2013AA102904-2）
国家自然科学基金项目(U1404404) （U1404404）
河南省农业科学院优秀青年科技基金项目(2016YQ12) （2016YQ12）
国家重点科技计划项目(2017YFD0301102) （2017YFD0301102）
