INFLUENCE OF ARTHROPODS AND EARTHWORMS UPON ROOT-GROWTH OF DIRECT DRILLED CEREALS

[1] ALDAG R, 1974, Z LANDWIRTSCHAFTLICH, V31, P277

[2] Allen H. P., 1975, Outlook on Agriculture, V8, P213

[3] [Anonymous], 1977, BIOL EARTHWORMS

[4] BAEUMER K, 1973, ZEROTILLAGE ADV AGRO, V25, P77

[5] BECKER KW, 1973, GOTTINGER BODENKUN S, V26, P1

[6] BUAHIN EKA, 1965, THESIS U LONDON

[7] Cannell R. Q., 1973, Outlook on Agriculture, V7, P184

[8] DREIDAX L, 1931, ARCH PFLANZENBAU, V7, P413

[9] Edwards C.A., 1975, P399

[10] Edwards C. A., 1975, Outlook on Agriculture, V8, P243

[1] ALDAG R, 1974, Z LANDWIRTSCHAFTLICH, V31, P277

[2] Allen H. P., 1975, Outlook on Agriculture, V8, P213

[3] [Anonymous], 1977, BIOL EARTHWORMS

[4] BAEUMER K, 1973, ZEROTILLAGE ADV AGRO, V25, P77

[5] BECKER KW, 1973, GOTTINGER BODENKUN S, V26, P1

[6] BUAHIN EKA, 1965, THESIS U LONDON

[7] Cannell R. Q., 1973, Outlook on Agriculture, V7, P184

[8] DREIDAX L, 1931, ARCH PFLANZENBAU, V7, P413

[9] Edwards C.A., 1975, P399

[10] Edwards C. A., 1975, Outlook on Agriculture, V8, P243