Resumo

MUNGUIA-LOPEZ, Juan et al. Energy Balance of Pepper under Plastic Mulch. Terra Latinoam [online]. 2011, vol.29, n.4, pp.431-440. ISSN 2395-8030.

Previous studies have been conducted to evaluate the effect of plastic mulch on the upper soil profile and its relation to the growth and yield of crops. However, the plastic mulch on the soil surface affects all components of the energy balance (net radiation, Rn; sensible heat flux, H; latent heat flux, LE; and soil heat flux, G). In this study, the energy balance components through the different growth stages of the bell pepper crop were measured and the daily and seasonal partitioning of the energy balance was evaluated. The results showed that Rn was the major term of the energy component and during the early stage of growth most of Rn was dissipated in sensible H, due crop covered only a small part of the bed. Once the crop reached the highest foliage growth, Rn was escaped mainly in LE. During senescence, most Rn was transformed in H and in a lower rate in G, followed by LE.

Palavras-chave : evapotranspiración; energy flux; drip irrigation; eddy covariance.