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- [3] UREA AS A NITROGEN-FERTILIZER FOR GRASS CUT FOR SILAGE JOURNAL OF AGRICULTURAL SCIENCE, 1992, 119 : 373 - 381
- [5] ECONOMIC USE OF NITROGEN-FERTILIZER NEW ZEALAND JOURNAL OF AGRICULTURE, 1978, 136 (03): : 33 - &
- [7] EFFECTS OF FERTILIZER NITROGEN ON SOIL-NITROGEN AVAILABILITY AFTER A GRAZED GRASS LEY AND ON THE RESPONSE OF THE FOLLOWING CEREAL CROPS TO FERTILIZER NITROGEN JOURNAL OF AGRICULTURAL SCIENCE, 1994, 122 : 445 - 457