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一、自然概况和水稻布局的现状南陵县位于长江下游南岸,气溫适中(年平均溫度在摄氏十六度左右),无霜期較长(二百四十天左右),雨量充沛(年降雨量一千三百至一千四百毫米)。境內有着明显的平畈区、圩区、丘陵区和山区。平畈区:种植大面积的綠肥(紅花草),土壤肥沃;90%以上的水田自流灌溉,双季稻面积比重較大,水稻亩产高;水田約占全县的36%。圩区:河网塘坝星罗棋布,以綠肥和塘泥为早、中稻的主要肥源;解放后由于連年不断地兴修农田水利和新建一些排灌工程,
First, the natural situation and the status quo of rice layout Nanling County is located in the south bank of the lower reaches of the Yangtze River, moderate temperature (annual average temperature around 16 degrees Celsius), frost-free period longer (about 240 days), abundant rainfall (annual rainfall of 1 Thousand three hundred to one thousand four hundred millimeters). The territory has a clear flat area, polder area, hilly areas and mountains. Pingtung District: Planting a large area of green manure (red flowers and grass), fertile soil; 90% of the paddy fields runoff irrigation, double crop area larger proportion of high yield rice; paddy fields account for about 36% of the county. Polder: River network dam dotted with green manure and pond mud as early as the main source of rice; after the liberation as successive years to rehabilitate farmland water conservancy and some new irrigation and drainage projects,