Acta Agriculturae Boreali-Sinica

ACTA AGRICULTURAE BOREALI-SINICA ›› 2002, Vol. 17 ›› Issue (4): 128-134. doi: 10.3321/j.issn:1000-7091.2002.04.028

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Field Application of N-Expert System on N Recommendation of Autumn Spinach

CHEN Qing1,2, ZHANG Hong-yan1, ZHANG Xiao-sheng1, LI Xiao-lin1, Hans-peter Liebig2   

  1. 1. Department of Plant Nutrition, China Agr icultur al Univ ersity, Beijing 100094, China;
    2. Institute of Fruit Sciences, Vegetable Sciences and Viticulture(370), Hohenheim University, Stuttgart D-0593
  • Received:2001-11-05 Published:2002-12-28

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Abstract: Optimization in fertilization is very important for A class green vegetable in China. Based on N-Ex pert system from Germany and the standard requirement of non-polluted vegetable production, the conception of Nmin buffer value was introduced and validated in autumn spinach in 1999 and 2000. The N-Ex pert system could be an effective tool for sustainable production.

Key words: Spinach(Spinacia oleracea L.), N-Expert system, Fertilizer recommendation

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Cite this article

CHEN Qing, ZHANG Hong-yan, ZHANG Xiao-sheng, LI Xiao-lin, Hans-peter Liebig. Field Application of N-Expert System on N Recommendation of Autumn Spinach[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2002, 17(4): 128-134. doi: 10.3321/j.issn:1000-7091.2002.04.028.

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