The results of four years of trials (1986-1990) carried out in an irrigated area of southern Italy (Gaudiano di Lavello, PZ, 41°03' N, 15°42' E) are reported. The purpose of the work was to study the yield response of several durum wheat cultivars (Appio, Creso, Latino and Japigia in 1987, 1988 and 1989; Latino, Duilio, Primadur and Neadur in 1990) under different irrigation regimes with different restoration of maximum evapotranspiration (ETc) or supplying supplementary irrigation at some growth stages. In 1990 three nitrogen treatments (0, 120 and 240 Kg ha-l) were also tested. In general, the best grain yield (ranging from 5.81 to 4.58 t ha-l) were obtained by applying a seasonal irrigation volume corresponding to 100% of ETc (about 3,500 m3 ha-l), but in many cases it was not statistically different from the irrigation regimes equal to 75 or 50% of ETc and from the treatment with watering at the booting stage (about 600 m3 ha-l). Among the nitrogen treatments compared, the best results were obtained for the amount of 120 Kg ha-l, whereas, among varieties, Latino, Appio and Duilio gave the highest yield.
Influence of the irrigation regime and nitrogen application on some durum wheat cultivars in southern Italy
PERNIOLA, Michele;RIVELLI, Anna Rita;
1992-01-01
Abstract
The results of four years of trials (1986-1990) carried out in an irrigated area of southern Italy (Gaudiano di Lavello, PZ, 41°03' N, 15°42' E) are reported. The purpose of the work was to study the yield response of several durum wheat cultivars (Appio, Creso, Latino and Japigia in 1987, 1988 and 1989; Latino, Duilio, Primadur and Neadur in 1990) under different irrigation regimes with different restoration of maximum evapotranspiration (ETc) or supplying supplementary irrigation at some growth stages. In 1990 three nitrogen treatments (0, 120 and 240 Kg ha-l) were also tested. In general, the best grain yield (ranging from 5.81 to 4.58 t ha-l) were obtained by applying a seasonal irrigation volume corresponding to 100% of ETc (about 3,500 m3 ha-l), but in many cases it was not statistically different from the irrigation regimes equal to 75 or 50% of ETc and from the treatment with watering at the booting stage (about 600 m3 ha-l). Among the nitrogen treatments compared, the best results were obtained for the amount of 120 Kg ha-l, whereas, among varieties, Latino, Appio and Duilio gave the highest yield.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
