论文部分内容阅读
以旱稻田间试验资料为基础,对水稻生长模拟模型ORY ZA 2000模拟旱稻生长进行参数校正和验证,图解和回归分析结果显示ORY ZA 2000模拟旱稻生物量、产量、作物吸氮量的模拟值与观测值基本呈线性关系,模拟效果良好,但对土壤水分的模拟效果欠佳,需做进一步研究。应用校正和验证的结果,结合肥料效应函数原理,对旱稻不同灌溉方式和密度管理下的氮肥经济最佳施肥量做了探讨,初步得出了该地区旱稻栽培氮肥经济最佳施肥量,丰富了作物模拟和节水农业的理论和实践,对以后旱稻发展及栽培管理有一定的参考价值。
Based on the experimental data of Upland rice, parameters of rice growth simulation model ORY ZA 2000 were simulated and verified by regression analysis and regression analysis. The results showed that ORY ZA 2000 simulated Upland rice biomass, yield, The values are basically linear, the simulation results are good, but the effect of soil moisture simulation is not good, and further research is needed. Based on the results of calibration and validation, combined with the principle of fertilizer effect function, this paper discussed the economic optimum fertilization of nitrogen fertilizer under different irrigation methods and density management in Upland rice. The optimal fertilization rate of Upland rice cultivation in this region was obtained and enriched The theory and practice of crop simulation and water-saving agriculture have certain reference value for the development of upland rice and cultivation and management in the future.