共 13 条
[1]
COOKE GW, 1964, 80 P FERT SOC
[2]
COWLING D. W., 1961, JOUR BRIT GRASSLAND SOC, V16, P281
[3]
DILZ K, 1961, 8TH P INT GRASSL C R, P150
[4]
FARBROTHER H. G., 1957, Empire Cotton Growing Review, V34, P71
[6]
A MOVABLE AND TRANSPARENT RAINPROOF COVER FOR EXPERIMENTAL PLOTS
[J].
JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH,
1966, 11 (01)
:62-&
[7]
JANTTI A., 1957, Journal of the British Grassland Society, V12, P56
[8]
JANTTI A, 1956, 7TH P INT GRASSL C, P33
[9]
KERNICK M. D., 1960, JOUR BRIT GRASSLAND SOC, V15, P34