03370nam a2200421 4500 20260817162927.0 080598 th eng .b10088453 AIT Thesis no. AE-94-36 Pan, Jun Application of ORYZA1 model to double rice-cropping region in Central China Bangkok : Asian Institute of Technology, 1994 73 leaves Thesis ; no. AE-94-36 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources & Development Thesis (M.Sc.) - Asian Institute of Technology, 1994 The Central China double rice cropping region was the most important rice-cropping region in China. Fengshui village of Tonglu county in Zhejiang province and Dongshan village of Jurong county in Jiangsu province respectively were selected as study sites. The rice crop growth data and weather data were collected from secondary sources. The socio economic data were collected from 60 farm households. The model ORYZAl was used as a tool in this study with system analysis, economic analysis and farming system research (FSR) approach. The results indicate that the double rice with triple cropping system is the dominant cropping system in study sites, and several constraints do exist in the site. The grain yield of 8.0 t/ha and 7.3 t/ha, and 8.7 t/ha and 8.2 t/ha respectively are predicted by the simulated model ORYZAl, with popular varieties of first rice crop and second rice crop in the two study sites. Compared to observed values of grain yield, a yield gap is only 1.3 t/ha. Economic analysis indicates that the rice cropping system is relatively stable and insensitive to external changes in the environment. The income and expenditure of farm family is greatly affected by labour employed off-farm. Finally, several measures and pathways were put forward to recommend optimum cultural management practices for farmers to increase the rice productivity more efficiently. Double cropping China, Central Rice China, Central Planting Upasena, Selawa H., Chairperson Boonjit Titapiwatanakun, Examination Committee Demaine, Harvey, Examination Committee Government of Japan, Scholarship Donor Asian Institute of Technology. Thesis ; no. AE-94-36 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B15580 .b10088453 mnait x 240410 1 951209 m a x 0 mnait mnait mnarc 20 40 Barcode : 30050003009841 CREATED : 1994-12-07 RECORD # : i11703179 LPATRON : 1017216 LCHKIN : 2005-04-17 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 2 Barcode : 30050003009833 CREATED : 1994-12-07 RECORD # : i11703180 LPATRON : 1014363 LCHKIN : 2001-02-14 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 0 Barcode : 30050120376560 CREATED : 2016-01-06 RECORD # : i13010293 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 6742 6742 0 0 0 0 MAIN MAIN mnait 2026-08-17 0 AIT Thesis no. AE-94-36 30050003009841 2026-08-17 16:29:27 1 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 0 AIT Thesis no. AE-94-36 30050003009833 2026-08-17 16:29:27 2 2026-08-17 20 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no. AE-94-36 30050120376560 2026-08-17 16:29:27 2026-08-17 40