Yield and performance of sugarcane in on-farm interface with rubber in Brazil

Pesquisa Agropecuária Brasileira

Luís Fernando Guedes Pinto²  Marcos Silveira Bernardes¹  Antônio Roberto Pereira¹ 

[1] ,Instituto de Manejo e Certificação Florestal e AgrícolaPiracicaba SP

关键词: Saccharum officinarum;    Hevea brasiliensis;    agroforestry systems;    light;    partitioning;    Saccharum officinarum;    Hevea brasiliensis;    sistemas agroflorestais;    luz;    partição;   

DOI  :  10.1590/S0100-204X2006000200009

来源: SciELO

【 摘 要 】

Agroforestry systems are indicated as an alternative for sugarcane (Saccharum officinarum) cultivation in Piracicaba, SP, Brazil, however there are not many field experiments on plant performance under these conditions in the world. The objective of this work was to assess crop yield and partitioning in a sugarcane-rubber (Hevea brasiliensis) interface in on-farm conditions. The availability of irradiance for the crop along the interface was simulated and its effe ct over sugarcane dry matter production was tested. Crop yield was negatively affected by distance of the trees, but development and sucrose were not affected. Above ground dry matter increased from 16.6 to 51.5 t ha-1 from trees. Partitioning did not have a defined standard, as harvest index increased from 0.85 to 0.93, but specific leaf area was not significant along the transect, ranging from 13.48 to 15.73 m² kg-1. Light is the main factor of competition between the trees and the crop, but the relative importance of below ground interactions increases closer to the trees. Feasibility of the system depends on maturity of the trees and management strategies.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License