Effect of using methods and norms phosphoruos fertilizer on leaf area of winter wheat

¹ Professor of the Department of Plant Science and Oil Crops, Faculty of Agrobiology, Tashkent State Agrarian University, Tashkent, Uzbekistan
² Associate Professor of Department of Plant Science and Oil Crops, Faculty of Agrobiology, Tashkent State Agrarian University, Tashkent, Uzbekistan
³ Senior Teacher of the Department of Plant Science and Oil Crops, Faculty of Agrobiology, Tashkent State Agrarian University, Tashkent, Uzbekistan
⁴ Researcher of Scientific Research of Cereals and Legumes Institute, Ferghana Scintific Exspremental station, Besharik Street, Ferghana, Uzbekistan

Abstract

This article presents information on the location, methods and methods of research, the effect of phosphorus fertilizers on the formation of the leaf area of winter wheat. According to this, information was provided on that before planting winter wheat seeds, using ammophos fertilizer 90 kg/ha, potash fertilizer 60 kg/ha, nitrogen fertilizer 200 kg/ha during the growing season, and apply PS-agro pure under the plow at the end of the growing season and nitrophos (NKFU) fertilizers 90 kg/ha, potassium fertilizer 60 kg/ha, compared to the options that used nitrogen fertilizer at the rate of 200 kg/ha during the growing season, the leaf area was up to 2589,7–5341,2 m²/ha, biological dry mass accumulation was up to 9,4–16,2 c/ha.