Determination of water requirement, single and dual crop coefficient of garlic (Allium sativum) in the cold semi-arid climate

被引：0

作者：

Abyaneh, Hamid Zare ^{[1
]}

Varkeshi, Maryam Bayat ^{[1
]}

Ghasemi, Adel ^{[1
]}

Marofi, Safar ^{[1
]}

Chayjan, Reza Amiri ^{[2
]}

机构：

[1] Bu Ali Sina Univ, Fac Agr, Dept Irrigat & Drainage, Hamadan 6517833131, Iran

[2] Bu Ali Sina Univ, Fac Agr, Dept Agr Machinery, Hamadan 6517833131, Iran

来源：

AUSTRALIAN JOURNAL OF CROP SCIENCE | 2011年 / 5卷 / 08期

关键词：

Garlic evapotranspiration; Lysimeter; ANN; Single crop coefficient; Dual crop coefficient; Hamedan; EVAPOTRANSPIRATION;

D O I：

暂无

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The purpose of this study was to determine the water requirement, single and dual crop coefficient of garlic using a drainage lysimeter. The lysimeter experiments were conducted during 2008-2009. According to the experimental results, garlic water requirements (ETC) in this period were 546.5 mm and 519.2 mm, respectively, during the growing season. A reference evapotranspiration (ET0) was simulated with artificial neural network (ANN) method during garlic growth season. Results showed that crop coefficient value (K-C) in initial and final stages were 0.53, 1.4 and 0.3, respectively. The results were compared to the single and dual crop coefficients from the FAO-56 procedure. Results showed that maximum differences between ETC of single and dual K-C values were observed at initial and final stages. Also, this study showed that dual crop coefficient is more precise (RMSE=38%) but the advantage of single crop coefficient is simpler for a user.

引用

页码：1050 / 1054

页数：5