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.
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Claims 3
Claim · model-written summary
Foliar zinc doses and sources did not differ significantly in cob diameter, mass of 100 grains, and number of grain rows per cob.
- Treatment
- Foliar application of doses and sources of Zne0
- Outcome
- cob diameter, mass of 100 grains, number of grain rows per cobe0
- Direction
- did not promote significant differencee0
- Comparator
- between treatmentse0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“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.”
t0“Maize Crop”
Claim · model-written summary
Foliar zinc doses and sources did not differ significantly in grain Zn content and productivity.
- Treatment
- Foliar application of doses and sources of Zne0
- Outcome
- Zn content in grains and productivitye0
- Direction
- did not promote significant differencee0
- Comparator
- between treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn content in grains and productivity were evaluated. Foliar application of doses and sources of Zn did not promote significant difference between treatments.”
t0“Maize Crop”
Claim · model-written summary
The authors suggest low zinc mobility in maize as a possible explanation for the lack of treatment differences.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This was possibly due to the low mobility of the micronutrient in the plant.”
t0“Maize Crop”
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