共 203 条
[81]
HUANG JW, 1995, IN PRESS SOIL PLANT
[82]
HUNTER DB, 1995, IN PRESS SOIL PLANT
[83]
JOHNSON G, 1988, 2240 OKL COOP EXT SE
[84]
JOHNSON G, 1986, 863 OKL COOP EXT SER
[85]
JOHNSON GV, 1988, 2239 OKL COOP EXT SE
[86]
KAPLAN JK, 1989, AGR RES, V37, P16