Welcome to Chinese Journal of Ecology! Today is Share:

cje ›› 2005, Vol. ›› Issue (2): 209-213.

Previous Articles     Next Articles

A dynamic knowledge model for fertilization management in rapeseed

ZHU Yan, CAO Weixing, SHEN Weixiang, TIAN Yongchao   

  1. Hi-tech Key Laboratory of Information Agriculture of Jiangsu Prorince, Key Laboratory of Crop Growth Regulation of MOA, Nanjing Agricultural University, Nanjing 210095, China
  • Received:2003-09-22 Revised:2004-02-12 Online:2005-02-10

Abstract: By analyzing the latest research on fertilization management in rapeseed,a dynamic knowledge model for decision-making on total rates of nitrogen,phosphorus,potassium and boron,ratios of organic to inorganic nitrogen and of basal to dressing nitrogen,phosphorus and potassium under different environments was developed with the principle of nutrient balance and by integrating the factors of grain yield target and soil characters.With the data sets of different eco-sites,soil types and target yields,case studies indicated that the model had a good performance in decision-making and could be applied widely.

Key words: Chl a, N, P, K, Microcystis spp

CLC Number: