Figure 1. Identification of the control plant for irrigation at different concentrations of lemon juice and uncovering pipes

From

Experimentation in Times of COVID 19. Didactic Sequence “Influence of pH on plant irrigation” for a High School Chemistry Course

Adolfo E. Obaya Valdivia, Carlos Montaño Osorio, Yolanda Marina Vargas Rodríguez, Rubén Gerardo Ponce Pérez

American Journal of Educational Research. 2021, 9(12), 746-754 doi:10.12691/education-9-12-7