Growth and production of cowpea cultivated with liming and nitrogen fertilization in the Eastern Amazon

There was no difference between the supply of N through seed inoculation or mineral fertilization. [...]it is suggested to inoculate seeds with Rhizobium in order to maintain the soil N reserve. Weathered soils are characteristic of tropical regions and present chemical restrictions to agriculture,...

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Bibliographic Details
Published in:Revista Ceres 2021-10, Vol.68 (5), p.460-470
Main Authors: Costa, Milton Garcia, Ferreira, Eric Victor de Oliveira, Oliveira, Thiago Caio Moura, Maciel, Gutierre Pereira, Duque, Francisco José Sosa, Pereira, Wanderson Cunha
Format: Article
Language:English
Subjects:
Acidic soils
Acidity
acidity correction
AGRICULTURE, MULTIDISCIPLINARY
amazon soils
Annual precipitation
biological nitrogen fixation
Chemical precipitation
Climate
Cowpeas
Crop yield
Cultivars
Efficiency
Experiments
Fertilization
Inoculation
Laboratories
leguminous crops
Liming
Meteorology
Mineral fertilizers
Nitrogen
Precipitation
Relative humidity
Rhizobium
Seeds
Soils
Tropical environment
Tropical environments
Vigna unguiculata
Weather stations
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Summary:There was no difference between the supply of N through seed inoculation or mineral fertilization. [...]it is suggested to inoculate seeds with Rhizobium in order to maintain the soil N reserve. Weathered soils are characteristic of tropical regions and present chemical restrictions to agriculture, especially considering Fabaceae plants, through soil acidity, which decreases the efficiency of BNF (Farias et al., 2016). [...]soil acidity correction in the cultivation of cowpea is essential not only regarding the efficiency of BNF but also related to higher crop yields (Farias et al., 2016). According to the Köppen classification, the region has a tropical altitude climate (Am) with an average temperature of 26.2 °C, average annual precipitation of 2,500 mm and relative humidity between 75 and 89% (INMET, 2020). During the experimental period, data on temperature and precipitation (Figure 1) were obtained from the Automatic Surface Observation Meteorological Station of the National Institute of Meteorology (INMET), located at UFRA (CCP).
ISSN:0034-737X
2177-3491
2177-3491
DOI:10.1590/0034-737x202168050011