Evaluation of surface water drainage systems for cropping in the Central Highlands of Ethiopia

التفاصيل البيبلوغرافية
العنوان: Evaluation of surface water drainage systems for cropping in the Central Highlands of Ethiopia
المؤلفون: W.A. Welderufael, Y. E. Woyessa
المصدر: Agricultural Water Management. 96:1667-1672
بيانات النشر: Elsevier BV, 2009.
سنة النشر: 2009
مصطلحات موضوعية: Hydrology, geography, geography.geographical_feature_category, Crop yield, Ditch, food and beverages, Soil Science, Vertisol, Water balance, Environmental science, Drainage, Central Highlands, Agronomy and Crop Science, Surface irrigation, Earth-Surface Processes, Water Science and Technology, Waterlogging (agriculture)
الوصف: In Ethiopia vertisols cover about 10% of the total land area and is the fourth most important soil used for crop production, accounting for nearly 23% of the total arable land used for crop production. More than half of the vertisols are found in the Central Highlands of Ethiopia, with an altitude of more than 1500 m above mean sea level. The unique physical and chemical properties of these soils and the high rainfall during the main cropping season create severe surface waterlogging problems which hinder crop production activities. Severe surface waterlogging affects the growth of plants by impeding nutrient uptake and creating oxygen deficiency around the root zone. To address this crop production problem, three surface water drainage methods, namely broad bed and furrow (BBF), ditch, and flat (traditional) methods were evaluated using the water balance of the plant root zone and wheat as a test crop. The experiment was conducted at the Ginchi Research Station in the central highlands of Ethiopia over two consecutive seasons (2000 and 2001). The results showed that both the BBF and the ditch drainage methods gave about 33% and 22% more grain yield than the flat treatment, respectively. However, there were no significant differences between BBF and ditch for both grain and biomass yield during both experimental seasons. During both seasons the total water balance (?Wr) at the root zone especially, in the months of June, July and August on all the treatments was higher than the crop water requirement (ETc) and showed no significant difference between the treatments. Thus, the results of this study indicated that the soil water in the root zone was not significantly altered by surface drainage systems and therefore implies the need of further improvement of the different surface drainage methods regarding improving the waterlogging condition and hence the productivity of the vertisols in the Central Highlands of Ethiopia
تدمد: 0378-3774
DOI: 10.1016/j.agwat.2009.07.001
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::e7a8992e5a272791fba59913ad2e13d7
https://doi.org/10.1016/j.agwat.2009.07.001
Rights: CLOSED
رقم الانضمام: edsair.doi...........e7a8992e5a272791fba59913ad2e13d7
قاعدة البيانات: OpenAIRE
الوصف
تدمد:03783774
DOI:10.1016/j.agwat.2009.07.001