SPATIAL AND TEMPORAL NON-UNIFORMITY IN THE FURROW IRRIGATION SYSTEM PERFORMANCE

Revista Brasileira de Engenharia Agrícola e Ambiental

Carvalho, Joaquim José de³  Azevedo, Hamilton Medeiros de⁴  Henrique, Jacqueline³  Azevedo, Carlos Alberto Vieira de¹  Barreto, Aurelir Nobre² 

[1] UFPB, Campina Grande, Brazil;Embrapa-Algodão, Campina Grande,, Brazil;Campina Grande, Campina Grande, Brazil;UFPB, Brazil

关键词:  furrow irrigation;    management;    performance;   

DOI  :  10.1590/1807-1929/agriambi.v3n1p18-25

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

The purpose of this research was to evaluate the degree of non-uniformity of furrow irrigation system performance generated by spatial and temporal variations in field and operational parameters. At each irrigation event along the crop season, field evaluations were performed in six furrows chosen in such way to comprise most of the spatial variations. Maximum spatial variations in the application efficiency, tailwater ration and deep percolation ration were equal to 33.0, 162.0 and 140.5%. Spatially, for tho same parametrs the maximum temporal variations were 26.3, 78.4 and 233.3%.

【 授权许可】

Unknown