共 50 条
- [26] EFFECTIVENESS OF FALL-APPLIED VERSUS SPRING-APPLIED UREA ON BARLEY - PELLET SIZE AND DEPTH OF PLACEMENT FERTILIZER RESEARCH, 1992, 31 (02): : 235 - 239
- [27] STUDIES IN NITROGEN IMMOBILIZATION AFTER STRAW MANURING ARCHIV FUR ACKER UND PFLANZENBAU UND BODENKUNDE-ARCHIVES OF AGRONOMY AND SOIL SCIENCE, 1985, 29 (01): : 39 - 45