摘要
ＣＯＴＧＲＯＷ模型是应用作物模型的理论和方法，借鉴国外同类模型的经验，在多年田间试验研究的基础上，根据中国棉花生产管理的实际，研制完成的一个融棉花生长发育与产量形成及常规栽培管理为一体的动态模拟模型。该模型的核心部分由碳素平衡、发育与形态发生、水分平衡、氨六平衡、栽培措施和输入与输出等模块构成，可根据土壤和气候数据模拟播种期、密度、地膜覆盖、去早蕾、打顶、喷缩节安、喷乙烯利、灌溉和施肥等单个或组合措施条件下的棉花生长发育、产量和品质形成，还可模拟２ｍ上层内各上层的土壤水分状况、氮素状况及植株各部分的含氮量和最终棉株对氮、磷、钾的吸收量。利用模型模拟不同栽培措施对棉花产量的影响结果表明，各种措施的产量拟合指数都在０．８５以上；模拟安阳１９８５年至１９９４年不同气候条件下的产量也具有很好的一致性。但模型还需要在其他类型气候和土壤条件下进行检验。
According to the characteristic of cotton production managment in China andfield experiments results of many years,on the basis of using the theory and method ofcrop modelling and refering other crop n1odels,the cotton simulaton model COTGROWwas developed,which included cotton growth,devolopment,yield composition and nor-mal cultural management practics.The key part of COTGROW consisted of carbohydrtematerials balance submodel,water balance submodel,nitrogen balance submodel,man-agement practices submodel,growth and development and yield submodel.COTGROWcould simulate the effects of sowing date,plant density,film mulching,early squares re-moval.topcut,spray DPC,spray ethylene,irrigation and application fertilizer.These sin-gle or multiple practics on cotton growth,development,yield and quality according to soiland climate data。This model also could simulate the soil water and nitrogen status of eachlayer of 200cm soil and nitrogen content of plant organs and the plant absorption rate ofN,P,K。The results simulated the effects of different management practics on cottonyield using this model showed that the fithess index(AI)was above 0.85,and there wasalso good fithess between simulated and harvested lint yield of different years in Aoyang,while this model still need more validation at another soil and climate conditions.
出处
《棉花学报》
CSCD
北大核心
1996年第4期180-188,共9页
Cotton Science
基金
国家自然科学基金
关键词
棉花
生长
发育
模拟
模型
cotton growth development simulation model
