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- [21] INCREASED USE OF NITROGEN-FERTILIZER AND PESTICIDES FOR WINTER-WHEAT BERICHTE UBER LANDWIRTSCHAFT, 1977, 55 (03): : 375 - 400
- [24] EFFECT OF LEVEL OF NITROGEN-FERTILIZER ON PROTEIN-COMPOSITION OF SOME BARLEY CULTIVARS NUTRITION REPORTS INTERNATIONAL, 1982, 25 (01): : 89 - 96
- [26] EFFECTS OF NITROGEN-FERTILIZER APPLIED TO SEED CROPS ON SEED YIELDS AND REGROWTH OF PROGENY TUBERS IN POTATOES JOURNAL OF AGRICULTURAL SCIENCE, 1986, 107 : 103 - 111