Penggunaan Dua Sumber Kalium Terhadap Pertumbuhan Dan Produksi Tanaman Ubi Ja…

ABSTRACT Production of sweet potatoes in Riau Province has decreased from 9,667 tons in 2018, 8,021 tons in 2019, to 7,305 tons in 2020, due to a decrease in harvested area of 490 Ha in 2018, 483 Ha in 2019, and 371 Ha in 2020. To increase production, efforts that can be done is by expanding the planting area by utilizing Inceptisol soil. However, Inceptisol soil has constraints in terms of it…