摘要
根据黑龙江省坡耕地薄层黑土综合培肥试验数据,用灰色系统理论建立了限制因素的单项预测模型,然后建立了各肥力限制因素与粮豆产量综合因素的GM(l,N)模型,预测结果为定向培肥土壤提供理论依据.表5.
According to the experimental data in synthetical amelioration to thin layer black soil which was slope cultivated land in Heilongjiang province.a single forecasting model was built for limiting factors of this soil by grey syntems analysis,then the GM(1 ,N) model was built for soil fertility limiting factors and factors for crop yield. The forecasting results can provide theoretical basis for directional improvement of soil fertility.
出处
《农业系统科学与综合研究》
CSCD
北大核心
1999年第1期75-76,共2页
System Sciemces and Comprehensive Studies In Agriculture
基金
黑龙江省自然科学基金资助项目
关键词
灰色系统模型
土壤肥力
限制因素
Grey systems model,Limiting factors of soil fertility
