Phosphorus use efficiency and crop production: Patterns of regional variation in the United States, 1987–2012
2019 ◽
Vol 685
◽
pp. 174-188
◽
Keyword(s):
2018 ◽
Vol 635
◽
pp. 498-511
◽
Keyword(s):
1994 ◽
Vol 21
(1-2)
◽
pp. 227-230
◽
Keyword(s):
Keyword(s):