Banca de DEFESA: MICHEL ANDERSON SILVA LOURENÇO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : MICHEL ANDERSON SILVA LOURENÇO
DATE: 31/08/2023
TIME: 13:00
LOCAL: Sala Virtual: https://meet.google.com/oqc-rzeo-yek
TITLE:

ACCUMULATION OF DRY MATTER AND NUTRIENTS IN SUGAR CANE, ROCK CANE SUBMITTED TO TWO FERTILIZATION STRATEGIES.

KEY WORDS:

Fertilization, Bioinputs, Phosphorus Solubilizer, Sacharum spp, phenology.

PAGES: 80
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Fitotecnia
SPECIALTY: Manejo e Tratos Culturais
SUMMARY:

Sugarcane is one of the main agricultural crops in Brazil with an average productivity of 75 t ha^-¹, and the management of its fertility becomes increasingly essential so that the crop can increase its productive potential. In this way, seeking new management alternatives for fertility, such as the use of bioinputs with P-solubilizing microorganisms, has been shown to be viable; therefore, the objective of this work was to evaluate and quantify, in sugarcane plants, the accumulation of dry matter and nutrients in the aerial part and its parts, considering two fertilization strategies with and without the use of Omsugo™ ECO phosphorus solubilizer that was applied in the planting furrow when establishing the cane field. The work was carried out in the 1st ratoon cane field (2021/2022) variety RB867515, from a planting in October 2020 and harvested in November 2021, developed in the experimental area of UFSJ, with no re-inoculation of the solubilizer. The experimental design was in randomized blocks, with treatments arranged in a 2x8 factorial scheme, with two levels of inoculation (with and without P solubilizer) and eight collection times of the plants, namely: (one - in the budding phase, three in the tillering phase, two in the intensive growth phase and two in the maturation phase), with 4 replications totaling 64 plots, with regression analysis being performed for season and average test for interaction and fertilization strategy. The accumulation of nutrients in sugarcane variety RB867515 of 1st ratoon has gains along the phenological stages with inoculation of the solubilizer in relation to non-inoculation. The inoculation of the phosphorus solubilizer Omsugo™ ECO contributed to a better development of the 1st ratoon cane field and to the accumulation of nutrients and dry matter. The content of soluble solids in the juice is increased with the use of phosphorus solubilizer in sugarcane stalks, and the productivity of stalks has gained 11% in relation to not using the solubilizer. The rate of nutrient accumulation in sugarcane, variety RB867515, has the following order both with the solubilizer and without the use of k>Ca>N>Mg>P>S>Fe>Mg>Zn>B.

BANKING MEMBERS:
Presidente - 1209941 - IRAN DIAS BORGES
Interna - 1583887 - NADIA NARDELY LACERDA DURAES PARRELLA
Externo à Instituição - IGNÁCIO ASPIAZÚ - UFV