共 50 条
- [1] WINTER LEGUMES AS A NITROGEN-SOURCE FOR NO-TILLAGE COTTON SOIL & TILLAGE RESEARCH, 1984, 4 (04): : 391 - 401
- [3] LEGUME COVER CROPS AS NITROGEN-SOURCE AND MULCH IN NO-TILLAGE CORN PRODUCTION SOIL & TILLAGE RESEARCH, 1986, 8 (1-4): : 340 - 340
- [5] UREA AS NITROGEN-SOURCE FOR PHYTOPLANKTON PRODUCTION IN COASTAL WATERS OF GOA INDIAN JOURNAL OF MARINE SCIENCES, 1985, 14 (02): : 93 - 97