Year: 2021
Type: article
Abstract: Adequate nutrition management of maize crop is essential when aiming at high yields and grain quality.In this context, Zn fertilization stands out since its content increase in grains used for human consumption is an alternative to alleviate malnutrition.Therefore, the aim of the present study was to evaluate foliar fertilization as a supplement, with alternative Zn doses and sources in the maize crop in southern Amazonia.The field experiment was conducted in Alta Floresta, Mato Grosso State, in dystrophic red yellow Oxisol.A randomized block design in a 4x2 factorial scheme was used, with four doses (0, 250, 500 and 1000 g ha -1 ) and two sources (ZnSO 4 and ZnO 40 nm) with foliar application during R1 stage.At the end of the experiment, the cob diameter, mass of 100 grains, number of grain rows per cob, Zn content in grains and productivity were evaluated.Foliar application of doses and sources of Zn did not promote significant difference between treatments.This was possibly due to the low mobility of the micronutrient in the plant.Thus, it is suggested to apply higher doses, or more than one foliar application along the maize crop cycle.
Institution: Universidade do Estado de Mato Grosso
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W3187134111