MODELO PARA ESTIMAR LIMITAÇÕES NUTRICIONAIS E NÃO NUTRICIONAIS EM BANANEIRAS ‘PRATA-ANÃ’ CULTIVADAS EM DIFERENTES AMBIENTES

Vagner Alves Rodrigues Filho; Júlio César Lima Neves; Sérgio Luiz Rodrigues Donato

doi:10.1590/1983-21252021v34n107rc

Authors

Vagner Alves Rodrigues Filho Technical Sector, Sítio Barreiras Fruticultura Ltda., Missão Velha, CE https://orcid.org/0000-0001-7702-7445
Júlio César Lima Neves Departament of Soils, Universidade Federal de Viçosa, Viçosa, MG https://orcid.org/0000-0001-8356-5100
Sérgio Luiz Rodrigues Donato Agriculture Sector, Instituto Federal de Educação, Ciência e Tecnologia Baiano, Guanambi, BA https://orcid.org/0000-0002-7719-4662

DOI:

https://doi.org/10.1590/1983-21252021v34n107rc

Keywords:

Musa spp. AAB. Diagnosis methods. Balance level. Equilibrium level.

Abstract

To obtain high yields, the nutrients in the plant must be in adequate quantities and proportions. Therefore, for better evaluation it is necessary to use methods that contemplate both balance and nutritional balance. The objective of this study was to adjust the model and quantify the nutritional and non-nutritional limitation based on the degree of balance and balance in 'Prata-Anã' banana trees, cultivated in the states of Ceará and Bahia. The studies were developed from the database of leaf nutrient content and productivity belonging to two farms of the company Sítio Barreiras, located in Missão Velha, CE and Ponto Novo, BA. Fields with above average yield plus 0.5 standard deviation, defined as high productivity, were considered as reference population and used to generate standards, while fields with below this threshold considered low productivity population, were used for nutritional diagnosis. The database was subdivided into four. The first and second, respectively, with 253 samples and reference population with productivity above 39.81 t ha^-1 year^-1, and with 553 samples for PBP, belonging to the Missão Velha farm. The third and fourth, respectively, with 147 samples and reference population above 41.69 t ha^-1 year^-1, and 334 samples for the PBP, belonging to the Ponto Novo farm. Non-nutritional factors limited the production of 'Prata-Anã' banana plants to 28.23% in Ceará and 50.49% in Bahia.

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