Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 1 de 1
Filter
Add filters








Year range
1.
Biosci. j. (Online) ; 28(Supplement 1 - XXXIII Congresso Brasileiro de Ciência do Solo): 130-141, 2012.
Article in Portuguese | LILACS | ID: biblio-912169

ABSTRACT

Com o objetivo de avaliar o comportamento da Brachiaria brizantha cv. Marandu sob a influência da adubação mineral e orgânica, quando cultivada em rejeito estéril da mineração de quartzito. Conduziu-se um experimento em casa de vegetação em delineamento experimental inteiramente casualizado com quatro repetições. Os tratamentos consistiram de cinco combinações de adubação orgânica (AO) e mineral (AM) e um tratamento adicional do rejeito estéril sem AO e AM (Testemunha). As combinações foram: 0%AO/100%AM; 25%AO/75%AM; 50%AO/50%AM; 75%AO/25%AM; 100%AO/0% AM. As doses de 100% de AM e AO foram de 50 kg N, 50 kg P2O5 e 40 kg K2O e 10 t de esterco de curral por ha. As variáveis avaliadas foram peso de massa seca (parte aérea, raiz e total) e teores e acúmulos de nutrientes. A B. brizantha cv. Marandu respondeu a AM e AO com as doses recomendadas de 37 kg N, 37 kg P2O5, 30 kg K2O e 2,6 t esterco de curral por ha. As doses de AM e AO aplicada ao rejeito estéril de quartzito influenciou o estado nutricional da forrageira. O acúmulo de nutrientes na forrageira nas doses recomendadas se deu na seguinte ordem na parte aérea: N > K > P > S > Ca > Mn >B > Fe> Zn > Cu e nas raízes: N> S > K > Ca > Mg > P > Fe > Mn > B > Cu > Zn.


In order to evaluate the behavior of Brachiaria brizantha cv. Marandu under the influence of mineral fertilizer and organic, when grown in sterile reject from quartzite mining. The experiment was conducted under of a greenhouse in a completely randomized design with four replications. The treatments consisted of five combinations of mineral (MF) and organic (OF) fertilizer and an additional treatment of the sterile reject without MF and OF (Witness). The combinations were: 0%OF/100%MF; 25%OF/75%MF; 50%OF/50%MF; 75%OF/25%MF; 100%OF/0% MF. Doses of 100% MF and OF were 50 kg N, 50 kg P2O5 and 40 kg K2O and 10 t bovine manure per ha. The variables evaluated were dry matter weight (shoot, root and total) and nutrients contents and accumulation. B. brizantha cv. Marandu responded to MF and OF with the recommended doses of 37 kg N, 37 kg P2O5, 30 kg K2O and 2.6 t bovine manure per ha. The doses of MF and OF applied to sterile reject quartzite influenced the nutritional status of the forage. The accumulation of nutrients in the forage at recommended doses in the following order was on the shoot: N > K > P > S > Ca> Mn > B > Fe > Zn > Cu and roots: N > S > K > Ca > Mg > P > Fe > Mn > B > Cu > Zn.


Subject(s)
Soil Characteristics , Food , Brachiaria , Manure , Mining , Ecosystem
SELECTION OF CITATIONS
SEARCH DETAIL