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Objectives of the study: Identifying soybean lines and varieties tolerant to waterlogging for the development of Winter soybeans on wet soil in Hanoi; developing appropriate cultivation technical measures to improve the yield of Winter soybeans on wet soil after Summer rice harvesting in Hanoi. | MINISTRY OF EDUCATION MINISTRY OF AGRICULTURE AND AND TRAINING RURAL DEVELOPMENT VIETNAM ACADEMY OF AGRICULTURAL SCIENCES PHAM THI XUAN STUDY ON SELECTION AND TECHNICAL MEASURES TO IMPROVE WATERLOGGING ABILITY OF WINTER SOYBEAN IN HANOI Specialization Crop Sciences Code 9620110 SUMMARY OF PhD THESIS Hanoi - 2021 The thesis was completed at VIETNAM ACADEMY OF AGRICULTURAL SCIENCES Supervisors 1. Assoc. Prof. Dr. Tran Thi Truong 2. Dr. Tran Danh Suu PhD thesis reviewer 1 PhD thesis reviewer 2 PhD thesis reviewer 3 The thesis was reported to the Thesis Committee at the Institutional level in Vietnam Academy of Agricultural Sciences At h date month 2022. The thesis can be found at the libraries 1. National Library of Vietnam 2. The Library of Vietnam Academy of Agricultural Sciences. 1 INTRODUCTION 1. Necessity of the study Soybean or soya bean Glycine max L. Merrill belongs to the legume family Fabaceae order Fabales. Soybean is one of the important crops of high economic value with multiple uses providing human feed being a source of raw materials for livestock food industry medicibe cosmetics. In Vietnam soybean is a long-standing crop having an important position in agricultural production and considered as a high economic efficiency crop in the strategy of crop restructure increasing the value of agricultural products. With short growth duration soybean can be cultivated in many crop seasons during the year being ideal in crop rotation intercropping increasing of crop seasons and overlapping crop. Soybean production helps to increase land use coefficient create jobs and increase income for farmers. The soybean planting area in Winter - Spring 2019 of Hanoi reached 2.9 thousand hectares over 3.4 thousand hectares planted for the whole year accounting for 85.3 the yield was 1.69 tons ha the output reached 4.9 thousand tons out of 5.92 thousand tons year accounting for 83.05 . Soybean has become the main crop occupying an important position in the Winter crop .
