茶园综合诊断施肥及专家咨询系统  

FERTILIZER APPLICATION BASED ON INTEGRATED DIAGNOSIS ON TEA PLANTATIONS AND A RELATED EXPERT SYSTEM

作　　者：谭和平[1] 王银华[1] 李中林[1] 杨德龙[2] 

机构地区：[1]四川省农科院茶叶研究所 [2]四川省农科院科技处

出　　处：《西南农业大学学报（自然科学版）》1991年第4期459-464,共6页Journal of Southwest Agricultural University

摘　　要：采用DRIS法把生态—茶树—土壤作为有机整体对茶因进行多因素的营养诊断.结果表明,四川茶区可分为五个地理生态区,各区均最需氮素肥,其次是磷或钾肥.应用茶树养分指数诊断结果和茶叶产量与土壤速效养分含量的关系式,建立了茶园综合诊断施肥的数学模式,并进行生态分类、综合营养诊断、施肥方案的制订与选择和施肥效益预测,建立了茶园综合诊断施肥技术的专家咨询系统.Using the DRIS method,integrated diagnosis was made of the nutritional status of thetea bushes On different plantations in Siehuan,in which the geographical ecological envi-ronments and the biological characteristics of the tea plants and the chemical properties ofthe soils were taken into consideration.Based on the results obtained,five geographicalecological regions were identified in the tea-producing areas of the province.They all re-quire the addition of nitrogen fertilizers and,to a lesser extent,phosphorous and/orpotassium fertilizers for a good harvest.A mathematical model(?)for integrated diagnosis of tea plantations was proposed:M=NR×T×CF^(-1)-0.8 S·D,where M represents the ferti-lizers to be supplemented,NR the nutritional requirement per unit yield of the tea bushes(kg),T the anticipated yield(kg),S available nutrients in the soil,D the coverage of the teaplantation,and CF a variable that may be fertilizer utilization rate,or 1-utilization rate,or 1,depending on the circumstances.Using computer technology,an expert system was es-tablished for offering advice on fertilization application strategies and integrated diagnosis.

关 键 词：茶园 施肥 综合诊断 咨询系统 

分 类 号：S571.106.2[农业科学—茶叶生产加工]