Giácomo, Rômulo Guimarães  Alves, Marlene Cristina  Camara, Rodrigo  Pereira, Marcos Gervasio  Arruda, Otton Garcia de  Souto, Sebastião Nilce  Moraes, Mário Luis Teixeira de  <br/><br/>
Litterfall and Nutrient Input in a Degraded Area 

<br/><br/> Publicação on-line; 39 ref.; 3 tables; 4 illus; Summay (En) 
<br/><br/> <br/><br/>ABSTRACT<br/><br/>This study aimed to test the effects of fertilization with organic compost from industrial production<br/>of pulp on the litterfall and nutrient input of monospecific plantations in a loan area. The treatments<br/>consisted of three doses of the organic compost D10, D15 and D20 (10, 15 and 20 Mg ha-1,<br/>respectively), mineral conventional fertilization (DAM) and no fertilization (D0) in land plots<br/>(N = 4/treatment/species; 15 x 12 m). Litterfall was monthly collected by two traps (0.72 m2<br/>/plot) and sorted out into leaves, twigs, seeds, flowers, fruits and others. We determined the input of<br/>nitrogen, phosphorous and potassium. There were no differences among the treatments and<br/>between species in terms of total annual litterfall. The higher nutrient input was obtained by<br/>DAM, followed by D10, in both plantations. The annual nutrient input was higher for the litterfall<br/>on the E. urograndis plantation.<br/><br/>Keywords: Eucalyptus urograndis, Mabea fistulifera, nutrient cycling. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EUCALYPTUS GRANDIS<br/>NUTRIENTE