摘要
在砂培条件下,分别以磷酸二钙(DCP)、磷酸八钙(OCP)、氟磷灰石(FA)、磷酸铝(Al-P)和磷酸铁(Fe-P)作为单一P源,研究了不同形态的无机P对生菜、菠菜和番茄的有效性以及这3种蔬菜对其吸收利用的差异。结果表明3种蔬菜对各种形态无机P的利用存在显著差异:生菜利用各形态无机P的能力为DCP>OCP>Al-P>Fe-P>FA:菠菜为DCP、OCP>Al-P>Fe-P>FA;番茄从生物量角度分析为Al-P、DCP>OCP>Fe-P>FA,从P积累量角度分析为DCP>OCP>Al-P>Fe-P>FA。
A quartz sand culture experiment was conducted to study the bio-efficiency of different forms of inorganic phosphate, i.e., DCP,OCP, FA, AI-P and Fe-P, and the differences in P uptake and utilization by three vegetables, i.e., lettuce, spinach and tomato. The results showed that the utilizations of different forms of inorganic phosphate in three vegetables were different. The utilization of different forms of inorganic phosphate was in the orders of DCP〉OCP〉Al-P〉Fe-P〉FA in lettuce, DCP, OCP〉Al-P〉Fe-P〉FA in spinach, and Al-P, DCP〉OCP〉Fe-P〉FA in tomato based on the dry weight. Total P accumulation showed an order of DCP〉OCP〉AI-P〉Fe-P〉FA in all three vegetables.
出处
《土壤》
CAS
CSCD
北大核心
2009年第2期218-223,共6页
Soils
基金
中国科学院知识创新工程重要方向项目(KSCX2-YW-N-002)
国家科技支撑项目(2006BAD05B08)资助
关键词
蔬菜
无机磷
生物量
磷积累量
磷利用效率
Vegetable, Inorganic phosphate, Dry weight, P accumulation amount, P utilization efficiency
