Research Article

Prediction of Grain Yield in Henan Province Based on Grey BP Neural Network Model

Table 1

Impact factors of grain yield in Henan Province.

Target layerRule layerIndex layer

Grain yield (, 103 hectares)Grain yield capacityGrain sown area (, 103 hectares)
Area of cultivated land (, 103 hectares)
Consumption of chemical pesticides (, 104 tons)
Diesel oil use for agriculture (, 104 tons)
Plastic film use for agriculture (, 104 tons)
Grain yield guaranteeTotal power of agricultural machinery (, 104 kw)
Irrigated area (, 103 hectares)
Fertilizer application in discounted amounts (, 104 tons)
Electricity consumption in rural areas (, 108 kwh)
Agriculture, forestry, and water expenditure (, 108 yuan)
Size of the economyGross domestic product (, 108 yuan)
Rural per capita consumption expenditure (, yuan)
Rural per capita disposable income (, yuan)
Share of the contributions of primary industry (, %)