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飞机播种牧草是加速草场改良,建立人工草地的现代化手段。一九八三年和一九八四年我省首次在长阳县火烧坪进行了二次飞播种草,效果较好,现将情况初报如下: 火烧坪草场位于北纬30°27′38″～30°32′48″,东经110°39′17″～110°48′48″。平均海拔1800米,平均坡度21°,地势较平坦,年平均气温7.6℃;最热月(7月)平均气温18.2℃;最冷月(1月)平均温-3.4℃,极端最高气温29℃;极端最低气温-20.1℃。日照时数1875.5小时。≥10℃秘温2210℃,无霜期156天,年降雨1485毫米。境内水源较。土壤为山地黄棕壤,有机质含量丰富,PH值6.5左右。
Aircraft sowing forage is a modern means of accelerating pasture improvement and establishing artificial grasslands. In 1983 and 1984, the province carried out the second seeding of grass for firefighting in Changyang County for the first time, and the results were as follows: The fire-burning plains were located at 30 ° 27’38 “ 30 ° 32’48 ”and longitude 110 ° 39’17“ ~ 110 ° 48’48 ”. The average elevation of 1800 meters, the average slope of 21 °, the terrain is flat, the annual average temperature of 7.6 ℃; the hottest month (July) the average temperature of 18.2 ℃; the coldest month (January) the average temperature of -3.4 ℃, the extreme maximum temperature of 29 ℃ ; Extreme minimum temperature -20.1 ℃. Sunshine hours 1875.5 hours. ≥10 ℃ secret temperature 2210 ℃, frost-free period 156 days, the annual rainfall of 1485 mm. Domestic water more. Soil is yellow mountain brown soil, rich in organic matter, PH value of about 6.5.