“…The content of phosphorus (P) in many soils of the world is often low or occurs in fixed forms ( Yang et al, 2014 ; Roy et al, 2016 ). P is an essential nutrient for plant growth and development, as it affects P uptake and endogenous hormone metabolism ( Shen et al, 2012 ; Ding et al, 2021 ; Zhao et al, 2021 ), and its deficiency dramatically affects the productivity of crops, such as sweetpotatoes, potatoes, chillies, soybean, rice, and so on ( Sun et al, 2019 : Kareem et al, 2020 ; He et al, 2021 ; Khanal et al, 2021 ; Nyiraneza et al, 2021 ; Yang et al, 2022 ). Previous studies have focused on the role of P in its uptake, yield, shape of the storage root, starch content, and total sugar quality of sweetpotato ( El-Deen et al, 2011 ; Wang et al, 2017 ; Villordon et al, 2018 ; Munda et al, 2019 ; Kareem et al, 2020 ).…”