Now showing items 1-10 of 126
Estoque de nutrientes nos resíduos da exploração de bracatingais.
(Boletim de Pesquisa Florestal, Colombo, n. 34, p. 17-29, jan./jun. 1997., 1997)
Nutrient accumulation curves in fruits and nutrient export by seeds and hulls harvesting of physic nut (Jatropha curcas L.)
(Univ Estadual Londrina, 2014)
There is little information on the nutritional management of physic nut (Jatropha curcas L.). This study aimed to measure the nutrients accumulation during the growth of fruits in physic nut and the nutrients export from ...
Nutrição e produtividade do crambe em razão da adubação de semeadura na safrinha
The interest in crambe (Crambe abyssinica) cultivation in Brazil is on the rise, whereas information on the nutrient requirements for this crop is scarce. The objective of this work was to evaluate the effect of ...
Nutrient extraction and exportation by castor bean hybrid lyra
(Sociedade Brasileira de Ciência do Solo, 2012-01-01)
Information about nutrient extraction and exportation by crops, as well as the periods of highest nutrient demand is important for an adequate fertilization management. However, there are no studies on the nutrient uptake ...
Sustainable use of eucalypt biomass grown on short rotation coppice for bioenergy
(Elsevier B.V., 2016-07-01)
Bioenergy is one of the alternatives to reduce the dependence of global energy on fossil fuels. The short rotation coppice (SRC) of eucalypt species appears as an interesting option for forest biomass production in a short ...
Acumulo de materia seca e de nutrientes em milho cultivado no periodo inverno-primavera.
(Pesquisa Agropecuaria Brasileira, Brasilia, v.33, n.11, p.1835-45, nov.1998., 1998)
Modifying harvesting time as a tool to reduce nutrient export by timber extraction: a case study in planted teak (Tectona grandis L.f.) forests in Costa Rica
Despite its low nutrient concentration, the high amount of biomass accumulated in the tree stem makes it an important nutrient sink. Hence, nutrient loss through timber removal at harvesting is a major cause of nutrient ...
Exigência nutricional e adubação da amoreira-preta
(Revista de Ciências Agrarias, v. 58, n. 1, p. 96-104, jan./mar. 2015, 2015)
Nutrient cycling in a RRIM 600 clone rubber plantation
(Universidade de São Paulo (USP), Escola Superior de Agricultura Luiz de Queiroz (ESALQ), 2003-01-01)
A ciclagem de nutrientes em seringais em fase de produção é assunto pouco estudado. Este trabalho avalia o efeito de doses de potássio nas quantidades de nutrientes que a seringueira (Hevea brasiliensis Muell. Arg.) do ...
Efeito do nitrogenio na nutrição do girassol
(Universidade Federal de Uberlândia (UFU), 2011-05-01)
Nitrogen (N), besides being one of the macro more absorbed by plants, is the that most limits the production of sunflower. The aim of this study was to evaluate the nutrient content in leaves, grains and nutrient export ...