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• Fallah.Allahyar Effect of nitrogen fertilizer and planting dates on stem borer and blast disease and yield in replanted rice cultivars in Amol, Iran [ Vol.15, Issue 1 - Spring Year 1398]
• Fallah.Allahyar Effect of planting date on qualitative characteristics and milling index of some rice cultivars in Amol, Iran [ Vol.15, Issue 2 - Summer Year 1398]
• Fathi.Nahid Effect of planting date on qualitative characteristics and milling index of some rice cultivars in Amol, Iran [ Vol.15, Issue 2 - Summer Year 1398]
• firoozyazdi.mina Detection of the first frost of autumn and the last frost of spring with the climate change approach at Gorgan synoptic station [ Vol.15, Issue 3 - Autumn Year 1398]
• firozi.shayan Investigation of environmental impacts in sugar beet production and the effect of production inputs on yield and profit to cost ratio [ Vol.15, Issue 4 - Winter Year 1398]