摘要
在板页岩母质发育的育性黄泥田中６年定位监测表明，在总施氮量相同时，有机和无机氦肥施用比例，对稻田耕作层和犁底层土壤的肥力均有一定影响，不同的处理土壤肥力的变化趋势不同，以６０％有机氮和全有机氮处理的效果最佳。
The resuIts,which had
been obtained by 6 years' monitoring and measuring thehydragric paddy soil developed from
slate-shale parent material,indicated that,eventhough the total nitrogen content was
alike,various ratios between organic and inorganicfertilizers led to different physical and
chemical characters not only in ploughed soil but al-so in ploughed pan soil,and then the
differences further resulted in different fertilitychanges in hydragric paddy soil.Of the various
ratios between organic and inorganic fertil-izers, 60%or l00%organic nitrogen contents fertilized
in hydragric paddy soil were of thebest effects.
出处
《西南农业大学学报（自然科学版）》
CSCD
1996年第3期262-267,共6页
Journal of Southwest Agricultural University
关键词
有机肥料
氮肥
土壤肥力
施氮比例
Organic fertilizers
nitrogenous
fertilizers
soil fertility/Ratios nitogen fer-tilization
