Selection of ecotypes of Panicum maximum for associated biological nitrogen fixation using the 15N isotope dilution technique
1990 ◽
Vol 22
(5)
◽
pp. 657-663
◽
1996 ◽
Vol 23
(3)
◽
pp. 249-256
◽
1996 ◽
Vol 23
(3)
◽
pp. 249-256
◽
1983 ◽
Vol 15
(1)
◽
pp. 25-32
◽
1984 ◽
Vol 16
(6)
◽
pp. 583-588
◽
1984 ◽
pp. 58-58
◽