Title:	Strategies for improving cowpea grain yield in the Eastern Amazon: biological nitrogen fixation, phosphorus nutrition, and molybdenum seed enrichment.
Authors:	BORGES, W. L. FERREIRA, N. dos S. RIOS, R. da M. SILVA, M. A. da ARAUJO, A. P. STRALIOTTO, R. ZILLI, J. E. RUMJANEK, N. G.
Affiliation:	WARDSSON LUSTRINO BORGES, CPAF-AP; NATÁLIA DOS SANTOS FERREIRA; RAYANE DA MOTA RIOS; MARA ALEXANDRE DA SILVA, UNIVERSIDADE FEDERAL RURAL DO RIO DE JANEIRO; ADELSON PAULO ARAÚJO, UNIVERSIDADE FEDERAL RURAL DO RIO DE JANEIRO; ROSANGELA STRALIOTTO, CNPS; JERRI EDSON ZILLI, CNPAB; NORMA GOUVEA RUMJANEK, CNPAB.
Date Issued:	2023
Citation:	Communications in Soil Science and Plant Analysis, v. 54, n. 15, p. 2087-2101, 2023.
Description:	his work aimed to evaluate the use of phosphorus (P) fertilizer, rhizobia inoculation, and seed enrichment with molybdenum (Mo) as tools for enhancing the cowpea yield in the Brazilian eastern Amazon. A set of field and greenhouse experiments were carried out in cerrado and upland forest environments. Four levels of P fertilization, eight rhizobia strains, and the application of mineral nitrogen (N) were evaluated for the cultivar BRS Tumucumaque (BR = Brasil e S = Sementes), and two levels of Mo seed enrichment were assessed for the cultivars BRS Tumucumaque and BRS Guariba. Grain yield increased linearly with the level of P applied. Inoculation with the rhizobia strain BR 3267 increased the shoot and nodule mass of the cultivar BRS Tumucumaque. There was no difference in grain yield and grain N accumulation between inoculation with seven rhizobia strains, N mineral fertilization and the control (without inoculation and N fertilization) in cerrado and upland forest environments. Cowpea grain yield and grain N accumulation were higher in the cerrado than in the upland forest environment and when the seeds were enriched with Mo. Phosphorus fertilization and seed enrichment with Mo are efficient tools to enhance cowpea yield in the Brazilian Amazon.
Thesagro:	Vigna Unguiculata
Keywords:	Latosol Upland forest
DOI:	https://doi.org/10.1080/00103624.2023.2211603
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CPAF-AP)