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林业科学 ›› 1999, Vol. 35 ›› Issue (1): 94-103.

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植物稳态矿质营养理论与技术研究及展望

郑槐明1,贾慧君2   

  1. 1. 中国林学会 北京 100091
    2. 中国林业科学研究院林业研究所 北京 100091
  • 收稿日期:1997-09-30 出版日期:1999-01-25 发布日期:1999-01-25
  • 基金资助:
    国家自然科学基金资助项目(39370565);国家自然科学基金资助项目(39070693)

STUDY AND PROSPECTS OF THEORY AND TECHNIQUES FOR STEADY-STATE MINERAL NUTRITION OF PLANTS

Huaiming Zheng1,Hujun Jia2   

  1. 1. The Chinese Society of Forestry Beijing 100091
    2. The Research Institute of Forestry, CAF Beijing 100091
  • Received:1997-09-30 Online:1999-01-25 Published:1999-01-25

摘要:

植物稳态矿质营养理论与技术,相对于传统矿质营养理论与技术,是一种全新的观点与近乎完美的试验技术。其要点可概括为:(1)按植物相对生长速率供应营养物质; (2)以自然界土壤溶液近似的低浓度供应营养物质; (3)依据植物生长对各种营养元素需求比例均衡供应营养物质。按照T.Ingestad提出的实验技术,已实现供试植物的最适生长,充分挖掘了植物的生长潜力。多年来,各国同行的研究领域包括:从树种、离子或试验条件等拓宽研究范围;把理论应用于林木育苗和林地施肥模型及相关的交叉学科;从植物体内物质代谢及外界生长条件研究作用机理。研究结果证明,稳态营养理论与技术揭示了植物生长与营养间的真正关系。

关键词: 植物稳态矿质营养, 营养物相对添加速率, 最适生长, 最适营养物重量比例, 营养物通量密度

Abstract:

The theory and techniques for steady-state mineral nutrition of plants, which is relative to the traditional mineral nutrition, is one kind of view in full new and experimental technique little short of being perfect.The main points of the steady-state mineral nutrition can be summarized as follows:(1) According to the requirements of the plants to supply the nutrients; (2) Suppling the nutrients in alow concentration which is close to the concentration of the natural soil solution; (3) Suppling the nutrients in a balanced proportion according to the requirements of plants.Based on the experimental technique proposed by T.Ingestad, the optimum growth of plants tested have been obtained so that the growth potential of plants has been tapped fully.For many years, the research fields of the steady-state mineral nutrition include the extension of range from tree species, ions, and experimental conditions, application of the theory to forest tree nursery cultivation, fertilization modles of forestland, and the related cross-study, as well as the study on the mechanism of the steady-state mineral mutrition from the matter metabolism and environmental conditions.The results have proved that the real relationship between growth and nutrition of plants has been revealed by the theory and techniques for steady-state mineral nutrition.

Key words: Steady-state mineral nutrition of plants, Relative addition rate of nutrients, Optimum growth, Optimum nutrient weight proportion, Nutrient flux density