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Response curve of salvia hispânica L. to different dosages of phosphorus in soils of the cerrado

( Vol-6,Issue-8,August 2019 ) OPEN ACCESS
Author(s):

Rodrigo Ribeiro Fidelis, Guillermo Arturo Herrera Chan, Wagner Augusto Rauber, Taynar Coelho de Oliveira Tavares, Marília Barcelos Souza Lopes, Kleycianne Ribeiro Marques, Pedro Raymundo Arguellles Osorio, Lucas Xaubet Burin, Danilo Alves Veloso, Liomar Borges de Oliveira, Patrícia Sumara Moreira Fernandes, Marile Alves Ramos dias, Manoel Mota do santos, Raimundo Wagner de Souza Aguiar

Keywords:

fertilization, Chia, management, tropical soils.

Abstract:

This study aimed to evaluate the response curve of phosphorus fertilization to the development and productivity of Salvia hispânica L. in Cerrado soils in the South of Tocantins. The Chia seeds used in the experiments came from producers in the region of Katueté — Paraguay. The experiments were carried out in the experimental area at the Federal University of Tocantins, University Campus of Gurupi-TO, in the agricultural years 2014/2015 and 2015/2016, through a randomized block design with four repetitions. The treatments consisted of five levels of phosphorus fertilizer (0, 30, 60, 90 e 120 kg ha−1). At 120 days after emergence, the following characteristics were evaluated plant height, upper stem height, stem diameter, bunches number, length of bunches, and grain Productivity. The data were submitted to analysis of variance and regression at the 5% probability level by the F test. The analysis of the results showed that the doses of 30 and 60 kg ha−1 of phosphorus influenced positively in the most development and productivity in the culture of Chia in the harvest 2014/2015. The results also showed that increasing doses of phosphorus had not positive effects in the agronomic characteristics at the culture of Chia n the harvest 2015/2016. The maximum grains Productivity found in the isolated doses of P was superior to 157 kg ha−1.

ijaers doi crossref DOI:

10.22161/ijaers.68.4

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