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Nitrogen pools in tropical plantations of N2-fixing and non-N2-fixing legume trees under different tree stand densities. Author(s): BIGHI, K. N.; PAULA, R. R.; CALDEIRA, M. V. W.; BURAK, D. L.; MENDONÇA, E. de S.; SOUZA, P. H. de; DELARMELINA, W. M.; BALIEIRO, F. de C. We investigated the nitrogen pools in monocultures of legume species widely used in reforestation in Brazil that have contrasting growth and nitrogen acquisition strategies. The plantations were estab... ... Repository: BDPA Publication year: 2021
Nitrogen sufficiency index for estimating nitrogen fertilizer requirement of irrigated rice. Author(s): SANTOS, A. B. dos; SILVA, M. A. S. da; SILVEIRA, P. M. da; CARVALHO, G. D.; STONE, L. F. 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
Nitrogen-use efficiency of maize genotypes in contrasting environments. Author(s): MARTINS, A. O.; CAMPOSTRINI, E.; MAGALHAES, P. C.; GUIMARAES, L. J. M.; DURAES, F. O. M.; MARRIEL, I. E.; NETTO, A. T. The purpose ofthis study was to evaluate the nitrogen-use efficiency of 15 corn hybrids in different environments. The experiment was conducted at the research station Embrapa Milho e Sorgo, in enviro... ... Repository: BDPA Publication year: 2008
Productivity of corn and beans as affected by season and source of nitrogen. Author(s): SILVEIRA, P. M. da; NASCENTE, A. S.; CARVALHO, M. da C. S. 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
Cupriavidus necator isolates are able to fix nitrogen in symbiosis with different legume species. Author(s): SILVA, K. da; FLORENTINHO, L. A.; SILVA, K. B. da; BRANDT, E. de; VANDAMME, P.; MOREIRA, F. M. de S. Repository: BDPA Publication year: 2012
Influence of nitrogen and potassium fertilization on nutrient content of the guava 'Paluma' fruit. Author(s): AMORIM, D. A.; ROSANE, D. E.; SOUZA, H. A. de; MODESTO, V. C.; NATALE, W. Repository: BDPA Publication year: 2012
genotypes with contrasting biological nitrogen fixation efficiencies differentially modulate nitrogen metabolism, auxin signaling, and microorganism perception pathways. Author(s): CARVALHO, T. G.; ROSMAN, A. C.; GRAVITOL, C.; NOGUEIRA, E. de M.; BALDANI, J. I.; HEMERLY, A. S. Sugarcane is an economically important crop that is used for the production of fuel ethanol. Diazotrophic bacteria have been isolated from sugarcane tissues, without causing visible plant anatomical c... ... Repository: BDPA Publication year: 2022
Do cover crops compete with young grapevines for fertilizer nitrogen? Author(s): BRUNETTO, G.; CERETTA, C. A.; MELO, G. W. B. de; FELIPE, L.; PAULO, A. A. F.; COUTO, R. da R.; SILVA, L. O. S.; SOMAVILLA, L. M.; ADRIELE, T.; GARLET, L. P.; LESSANDRO, D. C.; COMIN, J. J.; LOVATO, P. E. Vineyard soils of the Campanha Gaúcha region of Rio Grande do Sul are sandy and have low to medium organic matter content, displaying low natural ability to supply nitrogen (N). Therefore, maintenance... ... Repository: BDPA Publication year: 2016
Preliminary evaluation of coffee crops under different doses of nitrogen with a spad meter and leaf nitrogen. Author(s): VILELA, V. A. A.; AMARO, A. R. F. V. B. de L.; MORASI, I. M.; MURRER, M. K.; ABREU, P. F. G.; MOLTOCARO, R. C. R.; MORICONI, W.; GONCALVES, J. R. P.; SILVA, L. C. F. da; PACKER, A. P. 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. Author(s): SOUZA, H. A. de; INKLMAN, V.; SAZON, L. A.; CRISOSTOMO, S. D.; MENZA, N. C. La 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

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