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Nitrogen sufficiency index for estimating nitrogen fertilizer requirement of irrigated rice. The proper nitrogen management is required to achieve high irrigated rice yield. This study aimed to determine the rice response to nitrogen topdressing doses and calibrate the chlorophyll meter readi... ... Repository: BDPA Publication year: 2019
Productivity of corn and beans as affected by season and source of nitrogen. Enhanced-efficiency fertilizers, which provide a reduction in nitrogen (N) losses, can be a viable alternative for the anticipation of topdressing for the moment of sowing, besides reducing operations... ... Repository: BDPA Publication year: 2022
Influence of nitrogen and potassium fertilization on nutrient content of the guava 'Paluma' fruit. Repository: BDPA Publication year: 2012
Preliminary evaluation of coffee crops under different doses of nitrogen with a spad meter and leaf nitrogen. Abstract: The objective of this study was to establish correlations among the total N and the SPAD read- ings in Coffea arabica leaves. This study is part of a project that aims to evaluate the agrono... ... Repository: BDPA Publication year: 2014
Soybean carbon and nitrogen accumulation as affected by nitrogen supply. While carbon (C) markets are booming, there is scarce information about how much C is accumulated and returned to the soil in soybean crops. Soybean residue is also considered a valuable asset because... ... Repository: BDPA Publication year: 2024
Utilization of nitrogen (15N) from urea and green manures by rice as affected by nitrogen fertilizer rate. The use of green manures (GMs) in combination with nitrogen (N) fertilizer application is a promising practice to improve N fertilizer management in agricultural production systems. The main objective... ... Repository: BDPA Publication year: 2016
Portable chlorophyll meter can estimate the nitrogen sufficiency index and levels of topdressing nitrogen in common bean. The nitrogen sufficiency index (NSI) obtained by using a portable chlorophyll meter is a practical alternative to evaluate the N levels in plants. This study aimed at determining the appropriate NSI v... ... Repository: BDPA Publication year: 2017
Nitrogen sources on agronomic traits in carioca common bean lines developed under mineral nitrogen fertilization. Despite the importance of symbiotic nitrogen fixation (SNF) as a nitrogen source for leguminous plants, there are few reports of common bean breeding programs aiming at efficiency in SNF. This study a... ... Repository: BDPA Publication year: 2024
Phylogenetic analysis of nodulation and nitrogen fixation genes of a brazilian collection of Bradyrhizobium strains. The genus Bradyrhizobium encompasses a variety of bacteria that can live in symbiotic and endophytic associations with legumes and non-legumes, and are characterized by physiological and symbiotic ver... ... Repository: BDPA Publication year: 2010
Efficiency and diversity of nitrogen fixing bacteria colonizing Macroptilium lathyroides (L.) Urb. The objective of the present work was to study the efficiency and diversity of nitrogen-fixing bacteria that colonize the weed Macroptilium lathyroides (L.) Urb. M. lathyroides roots were collected in... ... Repository: BDPA Publication year: 2023

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