Soil fertility and agricultural policy

被引：0
|
作者：
Crowther, EM
机构：
来源：
NATURE | 1938年 / 142卷
关键词：
D O I：
10.1038/142701a0
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
引用
收藏
页码：701 / 702
页数：2
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