摘要
本文根据在黑龙江省31个县、市进行的多年玉米农业生态联合试验,并运用双重组合设计原理进行模型挂接,建立了黑龙江省玉米区域性农业生产数学模型。初步揭示了积温、降水、土壤肥力及农肥、化肥对玉米产量的影响程度及相互间的变化规律,并应用模型对玉米产量形成过程进行了模拟和预测。
Based on the joint experiments of corn agricultural ecology in 31 cities and counties in Heilongjiang province and on the model connection according to the theory of double combination design, a mathematic model of corn regional production in Heilongjiang is established. It reveals to what extent the accumulated temperature, precipitation, soil fertility, farm manure, and chemical fertilizers can affect corn yield. The model also reveals the regularity of variation of those factors. The model has already been applied to simulate the process of corn prodution and to predicate the corn yield.
出处
《生态学报》
CAS
CSCD
北大核心
1991年第1期13-17,共5页
Acta Ecologica Sinica
关键词
玉米
区域
农业数学模型
corn, region, model connection, double combination design predicate.
