共 50 条
- [44] Cropping systems effects on soil quality in semi-arid tropics [J]. JOURNAL OF SUSTAINABLE AGRICULTURE, 2000, 16 (03): : 7 - 38
- [45] ECOLOGY OF VA MYCORRHIZAE IN THE TROPICS - THE SEMI-ARID ZONE OF SENEGAL [J]. ACTA OECOLOGICA-OECOLOGIA PLANTARUM, 1981, 2 (01): : 53 - 62
- [46] INTERNATIONAL CROPS RESEARCH-INSTITUTE FOR SEMI-ARID TROPICS [J]. AGRICULTURAL ADMINISTRATION, 1977, 4 (01): : 49 - 55
- [47] Nitrogen losses from soils in the Indian semi-arid tropics [J]. TOWARDS SUSTAINABLE LAND USE, VOLS I & II: FURTHERING COOPERATION BETWEEN PEOPLE AND INSTITUTIONS, 1998, 31 : 645 - 652
- [49] WATER REQUIREMENTS OF MILLET IN SENEGAL - ADAPTATION IN THE SEMI-ARID TROPICS [J]. AGRONOMIE TROPICALE, 1983, 38 (04): : 267 - 280