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Doses of boron in sunflower growing development

Journal: Agrarian Academic Journal / Revista Agraria Academica (Vol.2, No. 4)

Publication Date:

Authors : ; ; ; ;

Page : 52-62

Keywords : Helianthus annuus L.; boric acid; yield; nutrient concentration;

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The objective of this study was to verify the influence of boron (B) doses on soil boron availability and sunflower characteristics in Tangará da Serra -MT. A randomized block design with four replicates, six doses of B (0; 0,5; 1,0; 1,5; 2,0 and 4,0 kg ha-1of B) was used, using boric acid. B content in soil, leaf B concentration, stem diameter, plant height, leaf diameter, mass of 1,000 achenes, shoot dry mass and yield were evaluated. All characteristics were influenced. The dose of 4 kg ha-1provided toxicity to plants with negative effects on shoot diameter and shoot dry mass.

Last modified: 2019-08-06 09:10:41