H.K. RAI; MONIKA SINGH; A.K. SHUKLA. Growth, yield and boron uptake by soybean under variable boron application in a Vertisol. Annals of Agricultural Research, India, v. 40, n. 3, p. 267–271, 2022. Disponível em: https://epubs.icar.org.in/index.php/AAR/article/view/127515. Acesso em: 7 jun. 2026.