共 31 条
- [1] MECHANICS OF ROOT GROWTH IN GRANULAR MEDIA [J]. JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH, 1969, 14 (03): : 236 - +
- [2] SOIL CLASSIFICATION IN SOIL SURVEY OF ENGLAND AND WALES [J]. JOURNAL OF SOIL SCIENCE, 1973, 24 (03): : 324 - 338
- [3] BAKERMANS W A P, 1970, Netherlands Journal of Agricultural Science, V18, P225
- [4] EFFECTS OF DIFFERENT METHODS OF CULTIVATION AND DIRECT DRILLING, AND DISPOSAL OF STRAW RESIDUES, ON POPULATIONS OF EARTHWORMS [J]. JOURNAL OF SOIL SCIENCE, 1979, 30 (04): : 669 - 679
- [5] BURFORD JR, 1978, 1977 LETC LAB AGR RE, P71
- [8] CANNELL RQ, J AGRIC SCI CAMB
- [9] DOUGLAS JT, 1977, COMMUNICATION
- [10] OXYGEN CONCENTRATIONS IN A CLAY SOIL AFTER PLOWING OR DIRECT DRILLING [J]. JOURNAL OF SOIL SCIENCE, 1979, 30 (02): : 239 - 245