Sökning: "Mekong Delta"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden Mekong Delta.

  1. 1. Pesticide use in rice farming and its impacts on climbing perch (Anabas testudineus) in the Mekong Delta of Vietnam

    Författare :Thanh Tam Nguyen; Håkan Berg; Michael Tedengren; Cong Van Nguyen; Joachim Sturve; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mekong Delta; Rice field; Climbing perch; Insecticide; Chlorpyrifos ethyl; Fenobucarb; Mixture; Sequential applications; AChE; Physical Geography; naturgeografi;

    Sammanfattning : The intensification of agricultural production in the Mekong Delta has faced serious challenges with respect to increased use of agrochemicals and especially pesticides. The indiscriminate use of pesticide could potentially impact on the long-term food production, environmental and human health in the delta. LÄS MER

  3. 2. Soil Degradation of Raised-beds on Orchards in the Mekong Delta Field and Laboratory Methods

    Författare :Quang Pham Van; Per-Erik Jansson; Khoa Le Van; Ingmar Messing; KTH; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; citrus orchards; nutrient; soil fertility; soil strength; soil degradation; alluvial soil; Mekong delta;

    Sammanfattning : Soil degradation is a complex process which may occur anywhere and at any time. It directly affects the physical, chemical and biological processes within the soil profile. Soil degradation can either be as a result of natural hazards or due to manmade actions, such as mismanagement on cropping patterns, soil preparation and cultivation practices. LÄS MER

  4. 3. Microbial communities in paddy fields in the Mekong delta of Vietnam : functional and molecular diversity

    Författare :Xuan Do Thi; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Rice paddy fields are considered to be unique ecosystems. Intensive rice cultivation was developed to increase yield and to meet the need of food security. LÄS MER

  5. 4. Japanese encephalitis virus in pigs and vectors in the Mekong Delta : with special reference to urban farming

    Författare :Johanna Lindahl; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Japanese encephalitis Virus (JEV) is a mosquito-borne flavivirus in East and South Asia, estimated to cause 60 000 human cases of Japanese encephalitis each year. The main transmission cycle for JEV is via mosquito vectors, mainly Culex species, between pigs and wading birds, the reservoir hosts. LÄS MER

  7. 5. Evaluation of catfish by-products as protein sources for pigs in the Mekong Delta of Viet Nam

    Författare :Nguyen Thi Thuy; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : The aim of this study was to evaluate preservation methods of catfish by-products (CBP), and the effects of replacing marine fish meal (FM) with these processing byproducts on diet digestibility, performance, feed efficiency and carcass quality in growing-finishing pigs. Paper I presents data on catfish production, processing and the nutritive value of catfish by-product meals (CBM) in the Mekong Delta (MD) of Vietnam. LÄS MER