摘要
通过室内培养的方式研究了不同磷含量水平对土壤供锌容量 -强度(Q/I)关系的影响 ,并应用能量的观点探讨不同磷含量水平对土壤中锌的交换过程的影响。结果表明 :向土壤中添加磷素的条件下 ,棕壤的供锌能力强于风沙土 ;不同磷含量对棕壤和沙土两种土壤锌含量水平的改变值(△Zn)、活度比(AR)和交换自由能(△G)均没有显著影响 ,而这些指标的显著变化是由于不同锌含量水平的差异引起的。
Brown earth and aeolian sandy soil were selected to study the effect of different levels of P on Zn Quantity-intensity(Q/I)relationship,the Zn exchange process with the energy point of view.The results showed that,the Zn-supplying capacity of brown earth was stronger than that of aeolian sandy soil,and different levels of P had no significant effects on△Zn,AR,and△G in the soil.Their changes were due to different levels of Zn.
出处
《沈阳农业大学学报》
CAS
CSCD
2003年第3期185-187,共3页
Journal of Shenyang Agricultural University
关键词
磷含量
旱地
土壤供锌能力
容量-强度关系
交换自由能
活度比
upland soils
P-Zn antagonism
zinc-supplying capacity
quantity and intensity
exchange free energy.
