共 13 条
- [1] BRINKMANN W, 1963, LANDTECHN FORSCH, V13, P128
- [2] LUDECKE H., 1954, Landwirtschaftliche Forschung, V7, P24
- [3] LUDECKE H, 1959, ZUCKER, V12, P365
- [4] LUDECKE H, 1961, ZUCKERRUBENBAU LEITF
- [5] Ludecke H., 1953, ZUCKERRUBENBAU LEITF
- [6] MARTENS M, 1966, PUBL TECHB I BELGE A, P137
- [7] NEEB O, 1968, ZUCKER, V21, P445
- [8] NEEB O, 1968, ZUCKER, V21, P463
- [9] NEEB O, 1967, ZUCKER, V20, P269
- [10] NEEB O, 1963, ZUCKER, V16, P619