RADIOMETRIC CHARACTERISTICS OF INNOVATIVE TRANSPARENT MATERIALS FOR CROP PROTECTION The diffusion of the agricultural plastic films has raised largely in the last years especially for the use in greenhouses, low tunnels and mulching. The radiometric properties of the covering materials, such as the transmissivity, the reflectivity and the emissivity, in the solar (0-3000 nm) and IR(>3000 nm) wavelength range influence strongly the climate under the covering materials. Besides the energy balance the radiometric properties of the materials influence the growth of crops which are influenced by the distribution of the incoming radiation in the different wavelengths. Aim of the work is the definition of the proper radiometric characteristics of various cladding materials for protected cultivation in relation with the different productive requirements. Therefore the radiometric properties of innovative materials were measured, and the effect of their variation in the different wavelength ranges have been investigated in relation with the agronomic and energetic requirements for a more sustainable greenhouse production.
Le caratteristiche spettroradiometriche di materiali trasparenti innovativi per la protezione delle colture
SCARASCIA MUGNOZZA, Giacomo;RUSSO, Giovanni;VOX, Giuliano
1997-01-01
Abstract
RADIOMETRIC CHARACTERISTICS OF INNOVATIVE TRANSPARENT MATERIALS FOR CROP PROTECTION The diffusion of the agricultural plastic films has raised largely in the last years especially for the use in greenhouses, low tunnels and mulching. The radiometric properties of the covering materials, such as the transmissivity, the reflectivity and the emissivity, in the solar (0-3000 nm) and IR(>3000 nm) wavelength range influence strongly the climate under the covering materials. Besides the energy balance the radiometric properties of the materials influence the growth of crops which are influenced by the distribution of the incoming radiation in the different wavelengths. Aim of the work is the definition of the proper radiometric characteristics of various cladding materials for protected cultivation in relation with the different productive requirements. Therefore the radiometric properties of innovative materials were measured, and the effect of their variation in the different wavelength ranges have been investigated in relation with the agronomic and energetic requirements for a more sustainable greenhouse production.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
