【摘要】 根据黑龙江省31个县市多年大豆农业生态联合试验,并运用双重组合设计原理,进行模型挂接,建立了黑龙江省大豆区域性农业生产数学模型。通过模型分析,初步揭示了积温、降水、土壤有机质以及化肥、有机肥对大豆产量的影响程度及交互作用下的变化规律。并应用模型对大豆产量形成过程进行了模拟和预测。更多还原

【Abstract】 Based on the joint experiments of soybean agricultural ecology in 31 cities and counties in Heilongjiang Province and on the model connection,according to the theory of double combination design,a mathematical model of soybean regional production in Heilongjiang Province was established.The model reveals the extent to which soybean yield is affected by accumulated temperature,precipitation,soil organic matter,farm manure,and chemical fertilizers.It also reveals the regularity of variation of those factors.The model was applied to simulate the process of forming soybean production and to predicate the soybean yield.更多还原