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Copyright of Revista Espanola de Antropologia Americana is the property of Universidad Complutense de Madrid and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Espanola de Antropologia Americana is the property of Universidad Complutense de Madrid and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The objective of this paper is to assess the impact of complementary irrigation on maize dry matter yield. A randomized complete design with 5 treatments and 4 replications was used. In order to schedule irrigations, the crop cycle was divided in three stages (pre-critical, critical and post-critical). Irrigation scheduling was based on a water balance calculated from weather data furnished by the meteorological station at the experimental field site. Irrigation was performed using lateral move pressurized systems. Maize matured in 138 days with all treatments and took 1660,6 degree days to attain physiological maturity. Dry matter yield showed significant differences (α = 0.05) among plots irrigated with the different treatments and between irrigated and control plots. Maximum production values ranged between 34,628 kg.ha-1 with T1 and 20,414 kg. ha-1 in the rain fed plots. The amount of water applied ranged between 360 and 300 mm; total crop water use, according to the water balance, was 575 mm ± 15 mm in the case of irrigated treatments, and 308 mm with the control treatments. Dry matter water use efficiency showed significant differences (α = 0.05) between irrigated treatments (5.7 kg.m-3) and rain fed (control) plots (6.6 kg.m-3). The harvest index was 0.49. [ABSTRACT FROM AUTHOR]

Copyright of Agronomía & Ambiente is the property of Universidad de Buenos Aires. Facultad de Agronomia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)