Based on 55 years of data from the meteorological stations of Santana do Ipanema and Palmeira dos Índios, an analysis was made on the use of the incomplete gamma distribution and the average rainfall in rainfall estimates. A ...

The hydric balance was based in seven -year data obtained a t the UEP/Barreiras Weather Station. The e va p o tra n sp ira tio n was c a lc u la te d by the Hargreaves method and the evaporation by the class A tank with ...

In order to determine the effect of N (4 levels: 0 - 50 - 100 - 150 kg/ha) on irrigated rice leaf area index (LAI) and yi eld, an experiment was carried out in São Desidêrio Irrigation Project, in a ramdomized block ...

The effect of four reclamation methods and Wo tillage treatments on the production and yield components of rice was studied in an alluvial soil with sodium problems. The tillage treatments consisted of traditional plowing ...

Using a randomized block experimental design with six treatments and four replicates, the effect of different irrigation levels on the phenology and productivity of herbaceous cotton (Gossypium hirsutum, L.), cultivar ...

This work relates basic resources for the implantation of hydro-agricultural projects in four regions of the State of Rio Grande do Sul, based on a frequencial study of irrigation ne oessities. The period of agronomia ...

To verify the possibility of apply the variations of isotope, deuterium and oxygen-18 concentrations it soil-plant-atmosphere system this study was carried out. It was shown that it is possible to use the correlations between ...

Monthly precipitation probabilities were computed for the município o f Alagoa Nova, P. In addition, from values of the moisture availability indez (MAI), the climatic and productivity classifications o f the area were ...