Yield response of a sweet pepper crop to different methods of greenhouse cooling

被引：20
|
作者：
Gazquez, J. C. [1 ]
Lopez, J. C. [1 ]
Baeza, E. [1 ]
Saez, M. [1 ]
Sanchez-Guerrero, M. C. [2 ]
Medrano, E. [2 ]
Lorenzo, P. [2 ]
机构：
[1] Estac Expt Cajamar Las Palmerillas, Autovia Mediterraneo,Km 417, El Ejido 04710, Almeria, Spain
[2] IFAPA, CIFA Almeria, La Mojonera, Almeria, Spain
来源：
PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON GREENHOUSE COOLING | 2006年 / 719期
关键词：
D O I：
10.17660/ActaHortic.2006.719.58
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The influence of three methods cooling (white washing, fogging and forced ventilation) on the growth and yield of substrate grown sweet pepper crops grown in three similar greenhouses was evaluated. Cover whitening and fogging were the most efficient in controlling the maximum temperature and VPD, mainly during the vegetative development phase. The cooling methods adopted did not show any significantly different effects on total and marketable yield, despite the radiation reduction by the white wash. The crop subjected to the fog system showed the highest incidence of blossom end root (B.E.R.). The water use efficiency in relation to the marketable yield was higher with the whitening than with forced ventilation (16.2%) or with the fog system (29.2%). An economic evaluation showed that whitening was the most profitable cooling treatment.
引用
收藏
页码：507 / +
页数：3
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