01422naa a2200253 a 450000100080000000500110000800800410001910000190006024501300007926000090020952006950021865000180091365000210093165000160095270000190096870000180098770000150100570000140102070000180103470000190105270000180107170000170108977300620110611331322023-03-01       2023    bl uuuu     u00u1 u    #d1 aSTEFANELLO, L.  aPhosphorus critical levels in soil and grapevine leaves for South BrazilvineyardsbA Bayesian approachh[electronic resource]  c2023  aIn South Brazil, grapevines (Vitis vinifera L.) have been grown in acid sandy soils, increasing phosphorus (P) need for fertilization. However, current fertilizer guidelines for growers are based on Vitis labrusca grown in clay soils. Therefore, there is a clear need to provide new recommendations on fertilization in vineyards. This study aimed to: (i) establish critical levels (CL) for P in the soil and grape leaves at flowering and veraison growth stages; and (ii) propose P maximum technical efficiency (MTE) rates for white and red grapevines grown in sandy soils based on a Bayesian approach. The study was carried out in sandy soil in South Brazil, with six P fertilization rates.  afertilization  aP critical level  asandy soils1 aSCHWALBERT, R.1 aTASSINARI, A.1 aGARLET, L.1 aCONTI, L.1 aCIOTTA, M. N.1 aCERETTA, C. A.1 aCIAMPITTI, I.1 aBRUNETTO, G.  tEuropean Journal of Agronomy , Netherlandsgv. 144, 2023.