NITROGEN FRACTIONS IN A GRAY WOODED SOIL AS INFLUENCED BY LONG-TERM CROPPING SYSTEMS AND FERTILIZERS

被引：23

作者：

KHAN, SU

机构：

来源：

关键词：

D O I：

10.4141/cjss71-058

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

引用

页码：431 / &

共 17 条

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MA T. S., 1942, Industrial and Engineering Chemistry. Analytical edition, V14, P280, DOI 10.1021/i560103a035

[9] FIXED AMMONIUM IN SOME ALBERTA SOILS [J].

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[10]

PORTER L. K., 1964, SOIL SCI SOC AMER PROC, V28, P368