A PORTABLE SOIL CORE SAMPLER AND PENETROMETER

被引:6
作者
SWANSON, CLW
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关键词
D O I
10.2134/agronj1950.00021962004200090007x
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
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页码:447 / 451
页数:5
相关论文
共 7 条
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Coile, TS .
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[3]  
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[4]  
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[5]   APPARATUS FOR COLLECTING UNDISTURBED SOIL SAMPLES [J].
LUTZ, JF .
SOIL SCIENCE, 1947, 64 (05) :399-401
[6]  
SNEDECOR GW, 1940, STATISTICAL METHODS
[7]  
SWANSON CLW, 1950, SOIL SCI, V62, P443