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- [23] Seasonal variation of nitrate-nitrogen in the soil profile in a subsurface drained field Astatkie, T., 2001, Canadian Biosystems Engineering (43):
- [24] SAMPLE VOLUME EFFECT ON THE DETERMINATION OF NITRATE-NITROGEN IN THE SOIL-PROFILE TRANSACTIONS OF THE ASAE, 1989, 32 (03): : 934 - 938
- [25] Effects of Different Nitrogen Topdressing Ratios on Soil Nitrate-Nitrogen and Summer Maize Growth AGRONOMY-BASEL, 2025, 15 (02):
- [27] NITRATE-NITROGEN CONTENT OF POTATOES AS AFFECTED BY SLUDGE-AMENDED SOIL AMERICAN POTATO JOURNAL, 1986, 63 (07): : 379 - 382
- [28] Effects of applied nitrogen on soil nitrate-nitrogen content after harvest of winter barley FERTILIZER RESEARCH, 1996, 45 (01): : 61 - 67