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宜良县常年种植水稻８７３３．３ｈｍ２（１３．１万亩），其中有４４００ｈｍ６（６．６万亩）分布于山区、半山区。由于低温和干旱缺水两大因素的严重制约，水稻产量长期低而不稳。１９９９年我们在地处半山区的草甸乡开发性地实施５．３３ｈｍ２（８０亩）水稻覆膜栽培技术?
Yiliang County perennial planting 8733.3hm2 (131000 acres) of rice, of which 4400hm6 (66000 mus) distributed in the mountain, Mid-Levels. Due to severe constraints of low temperature and drought and water shortages, the output of rice has been low and unstable for a long time. In 1999, we implemented the development of 5.33hm2 (80 mu) rice cultivation technique in Meadow Township, Mid-levels.