Measure and estimation of the evapotranspiration of tomato plants cultivated with organic fertilization in protected ambient

被引:6
作者
Burck Duarte, Georgea Rita
Schoeffel, Edgar Ricardo [1 ]
Gonzalez Mendez, Marta Elena [1 ]
de Paula, Viviane Aires [2 ]
机构
[1] Univ Fed Pelotas, FAEM, Dept Fitotecnia, BR-96010900 Pelotas, RS, Brazil
[2] Univ Fed Rio Grande do Sul, Programa Posgrad Agron, Porto Alegre, RS, Brazil
来源
SEMINA-CIENCIAS AGRARIAS | 2010年 / 31卷 / 03期
关键词
Lycopersicon esculentum; water consumption; reference evapotranspiration; greenhouse; crop coefficient;
D O I
10.5433/1679-0359.2010v31n3p563
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
The present work had the aim of determining the water consumption for tomato crop cultivated in protected ambient under organic fertilization and of evaluating the estimates of evapotranspiration and of crop coefficients (Kc) in greenhouse, with the use of the methods Class A Pan, Solar Radiation, Penman and Penman-Monteith. The experiment was carried out from September/2004 to January/2005, at the Campus of Universidade Federal de Pelotas, Brazil. The organic fertilization of the soil consisted of two doses of vermicompost from bovine manure, and 'Floradade' tomato plants were transplanted in 4/11/2004, with 0.50 x 0.70 m spacing. In the central part of the greenhouse, a datalogger was installed in order to receive the signals originated from the agrometeorologicals sensors installed in the greenhouse. In order to determine the water consumption of the plants, the method of water balance of the soil was used associated to evapotranspirometers, constructed in the central of the polyethylene greenhouse. The water consumption of the tomato plants in the 88 days of cultivation was of 477 mm. The estimation of the evapotranspiration for the methods Class A Pan, Solar Radiation and Penman, presented high precision and had agreement with the measured values of the crop evapotranspiration. The reference evapotranspiration presented values close to the crop evapotranspiration during the crop growth with the use of the methods Class A Pan, Solar Radiation and Penman, with Kc values of 0.95; 1.02; and 1.01, respectively, while for the Penman-Monteith method the Kc was 1.41.
引用
收藏
页码:563 / 573
页数:11
相关论文
共 32 条
  • [1] Allen R. G., 1998, FAO Irrigation and Drainage Paper
  • [2] Developing crop coefficients for field-grown tomato (Lycopersicon esculentum Mill.) under drip irrigation with black plastic mulch
    Amayreh, J
    Al-Abed, N
    [J]. AGRICULTURAL WATER MANAGEMENT, 2005, 73 (03) : 247 - 254
  • [3] ANDREATTA JA, 1990, THESIS U ESTADUAL PA
  • [4] BECKER AF, 1990, THESIS U FEDERAL SAN
  • [5] BECKMANN MZ, 2004, THESIS U FEDERAL PEL
  • [6] BEZERRA FML, 2000, HORTIC BRAS, V18, P600
  • [7] CARON BO, 2000, REV BRASILEIRA AGROM, V8, P19
  • [8] CARRIJO OA, 1997, 10 EMBRAPACNPH
  • [9] DALSASSO LCM, 1997, THESIS U FEDERAL SAN
  • [10] Doorenbos J, 1984, 24 FAO UN