Consumption of electric energy and production of hydroponic lettuce under three irrigation intervals

被引：5

作者：

da Luz, Gean Lopes ^{[1
]}

Petter Medeiros, Sandro Luis ^{[1
]}

Manfron, Paulo Augusto ^{[1
]}

Borcioni, Elis ^{[1
]}

Mueller, Liziany ^{[1
]}

do Amaral, Alan Dischkaln ^{[1
]}

Morais, Katiule Pereira ^{[1
]}

机构：

[1] Univ Fed Santa Maria, Dept Fitotecnia, BR-97105900 Santa Maria, RS, Brazil

来源：

CIENCIA RURAL | 2008年 / 38卷 / 03期

关键词：

Lactuca saliva L; yield; growth variables; electric energy;

D O I：

10.1590/S0103-84782008000300036

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The objective of this study was to evaluate irrigation intervals on the production of lettuce, cv. 'Regina', in an NFT hydroponic system. An experiment was carried out at the Crop Science Department, Federal University of Santa Maria, from May to June 2005. Treatments were three irrigation intervals (15 min, 30 min, and 45 min) after a 15 minutes irrigation. The experimental design was a complete randomized block design with three replications. Leaf area, and above ground and total dry matter were measured at transplanting, and at 6, 9, 16, 20 and 23 days after transplanting. The treatment 45 minutes interval between successive irrigations allowed a 42,1% saving electric energy without decreasing lettuce yeld.

引用

页码：815 / 818

页数：4

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