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作 者 ：李春花;褚天铎;杨清;刘新保

期 刊 ：植物营养与肥料学报 1997年 3卷 4期 页码：329-333

关键词：菜豆生物量；灌溉水HCO3-含量；养分吸收利用；

摘 要 ：石灰性土壤条件下灌溉水中HCO₃^-和不同HCO₃^-水平对菜豆的生长及吸收利用土壤有效养分的影响进行了盆栽和水培试验。结果表明，在该土壤条件下以HCO₃^-含量较高的水进行灌溉明显降低菜豆对土壤养分的吸收利用能力，抑制养分向叶和果荚的分配;HCO₃^-含量越高，影响也就越明显。钙可在一定程度上减轻HCO₃^-前不利影响。

Abstract:Pot culture and water culture trails were used to study the effect of HCO₃^- in irrigation water arid different HCO₃^- level on the growth and ability of absorbing and using soil available nutrients of bean (phaseolus vulgaris L.). The irrigation water used in pot trails was the underground water in Beijing, in which the HCO₃^- level is account 8. 45mol/L. The results showed that under calcareous soil condltions, irrigating with underground water containing higher HCO₃^- level (8. 45mol/L) decreased the growth and total nutrient absorption, the percentage of different nutriens ranged from more than 50% to 30%, and inhabited the transportation of absorbed nutrient from stem to leaves and pods seriously: 0,5,10, 15 and 20mmol/L HCO₃^- level in nutrient solution of water culture were adjusted with 0. 01mol/L NaHCO₃ and 5 and 10mmol/L Ca²⁺ level with 0.01 mol/L CaCl₃, biological yield in water culture decreased with the increase. of HCO₃^- level, while Ca²⁺ colild alleviate the adverse effect of HCO₃^- to some extent.

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