共 11 条
- [1] BAEUMER K, 1973, ZEROTILLAGE ADV AGRO, V25, P77
- [2] BATEY T, 1971, J R AGR SOC, V132, P106
- [3] AN INDURATED HORIZON IN SOILS OF SOUTH WALES [J]. JOURNAL OF SOIL SCIENCE, 1965, 16 (02): : 230 - &
- [4] EHLERS W, 1973, Zeitschrift fuer Acker- und Pflanzenbau, V137, P213
- [5] ELKAROURI M, 1974, THESIS LONDON U
- [7] AN INDURATED SOIL HORIZON FORMED BY PERMAFROST [J]. JOURNAL OF SOIL SCIENCE, 1956, 7 (02): : 248 - &
- [8] GOODERHAM PT, 1973, THESIS READING U
- [9] ROMANS JCC, 1962, J SOIL SCI, V17, P184
- [10] *UK AGR ADV COUNC, 1970, MOD FARM SOIL