First things first: Widespread nutrient deficiencies limit yields in smallholder oil palm fields - Hendra Sugianto; Juan P. Monzon; Iput Pradiko; Fatima A. Tenorio; Ya Li Lim; Christopher R. Donough; Sunawan; Suroso Rahutomo; Fahmuddin Agus; James Cock; Joni Amsar; Rana Farrasati; et al. (Agricultural Systems, 2023)