02577nas|a2200241 i 450000500170000000800410001703500150005810000180007324500920009126000520018330000150023549000270025050001380027750200590041552015270047465000490200170000340205070000420208470000390212671000460216581000590221185600650227020260818134558.0951012s1994    th u  m rtt  00|  a1eng d  a.b103508341 aVu, Dinh Hung10aImprovement of irrigation, drainage and farm conditions in the Red River Delta, Vietnam  aBangkok :bAsian Institute of Technology,c1994  a103 leaves1 aThesis ;vno. IR-93-05  aA thesis submitted in partial fulfillments of the requirements for the degree of Master of  Engineering, School of Civil Engineering   aThesis (M. Eng.) - Asian Institute of Technology, 1994  aSmall land resource per capita, in the Red River Delta, urges the increase in land utility  and crop yield. At the same time the change in economic policy of the country increases off-farm  job opportunities which insist farmers saving their labor from farming works. These are together  to require an adequate irrigation, drainage and farm conditions.  The evaluation, in this study, of a typical irrigation project shows that though the  irrigation and drainage facilities have been developed for over thirty years, the ill-controlled water  condition at farm-level is still widely seen. It is much more significant in the downstream areas  and less in the upstream areas. Accompanying is the variation in farm conditions among the areas  inside the command area.  The ill-conditions of the irrigation, drainage and farms results in the reduction estimated  at around 60% and 70% of rice yields in the spring crop season and in the summer crop season,  respectively, for the most significant cases. Meanwhile, the resulted increase in labor input to a  spring rice crop is found more than 100% for the most significant case.  The findings also shows that the potential increase of the total cultivated area can be 40%  on average.  The combination of irrigation and drainage improvement and land consolidation is  recommended as a measure to increase rice yield, to expand cultivated area by the means of  increasing upland crop cultivation, and to reduce labor requirement for rice cultivation, in the Red  River Delta. 0aIrrigation farmingxVietnamxRed River Delta1 aKono, Yasuyuki, eChairperson1 aMurty, V.V.N.,eExamination Committee1 aTran Thuc, eExamination Committee2 aGovernment of Norway, eScholarship Donor2 aAsian Institute of Technology.tThesis ;vno. IR-93-05  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B16063