CHANGES IN CONTENT OF TOTAL NITROGEN AND ORGANIC MATTER IN 3 NEBRASKA SOILS AFTER 7 YEARS OF CROPPING TREATMENTS

被引:2
作者
MAZURAK, AP
CONARD, EC
机构
关键词
D O I
10.2134/agronj1966.00021962005800010029x
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
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页码:85 / &
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