Water balance in soil for citrus rootstocks in the brazilian coastal tableland ecosystem

Revista Brasileira de Engenharia Agrícola e Ambiental

Cintra, Fernando Luis Dultra³  Libardi, Paulo Leonel¹  Saad, Antonio Melhem² 

[1] USP, Piracicaba;USP;Embrapa Tabuleiros Costeiros, Aracaju

关键词: water balance;    citrus;    rootstock;    coastal tablelands    INTRODUÇÃO Os baixos platôs costeiros;    também denominados tabuleiros costeiros;    são superfícies relacionadas aos sedimentos do Grupo Barreiras-Terciário Superior;   

DOI  :  10.1590/S1415-43662000000100005

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 irregular rain distribution and the existence of hardened layers in several soils of the tablelands promote, sometimes, important changes in the soil water regime and in the rates of evapotranspiration of the crops utilized in that ecosystem. The objective of this work was to know, by means of the water balance, how these processes occur in the studied area and to contribute to the establishment of management practices in order to make better use of the soil water. All components of the equations were measured, with exception of the evapotranspiration which was calculated. According to the results, it could be concluded that the orange tree had the maximum water consumption during the months of October and November and that, in terms of the rootstocks during these periods of great water consumption, the "Tangerina Cleópatra" (Citrus reshni Hort. former Tan.) was the less adapted and the "Limão Cravo" (Citrus limonia Osbeck) presented the best adaptation characteristics to the studied area.

【 授权许可】

CC BY-NC