A Dynamic Knowledge Model for Design of Suitable Sowing Date and Sowing Rate in Winter Wheat


Yan Zhu;Wei-Xing Cao;Dong Jiang;Ting-Bo Dai

Key Words

Winter wheat ; Sowing date ; Population density ; Sowing rate ; Knowledge model


Agricultural Sciences in China

Volume or Term/Year and Month of Publication

1卷10期(2002 / 10 / 01)

Page #

1116 - 1124

Content Language


English Abstract

Based on research concerning dynamic relationships of winter wheat growth to environments and production conditions, a winter wheat model for selecting suitable sowing date, population density and sowing rate under different varieties, spatial and temporal environments was developed. Case studies on sowing date with the data sets of five different eco-sites, three climatic years and soil fertility levels, and on population density and sowing rate with the data sets of two different variety types, three different soil types, soil fertility levels, sowing dates and grain yield levels indicate a good model performance for decision-making.

Topic Category 生物農學 > 農業
生物農學 > 森林
生物農學 > 畜牧
生物農學 > 漁業