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我县耕作制度的基本形式是一年三熟,春花、早稻、晚稻三季作物收种时期接连,季节紧凑。在温度偏低或秋季低温出现早的年份,晚稻往往因受低温影响,导致减产。为此,我们根据历史气候资料,对我县秋季低温气候资料作一些分析,供农业生产参考。一、我县晚稻生育期的热量条件: 我县夏秋季节以晴热天气为主,气温和日照都适合晚稻生长发育。据新仓公社农科站六年在公社丰产方的晚稻生育期温气记载,晚稻农虎66号和44号的全生育期为143天±1.1天,总积温为3315℃±60℃,其中播种到齐穗的总积温为2426℃±38℃,统计我县1954年来的25年中,6月20日到11月10日,总积温为3414℃±83.7℃,其中6月20日到9月25日的总积温为2620℃±74.9℃。因此,我县晚粳的热量条件是可以满足的,而且是稍有余额,这是我县夺取晚稻稳产高产的基本条件。见表一、表二。
The basic form of farming system in our county is three crops a year, spring flowers, early rice, late rice crop seeding three seasons, the season is compact. In the low temperature or early autumn low temperature appears, late rice often due to the impact of low temperature, resulting in reduced production. For this reason, based on historical climate data, we make some analysis on autumn low temperature climatic data in our county for reference of agricultural production. First, the county late rice growth period of caloric conditions: My county summer and sunny seasons to sunny weather, sunshine and sunshine are suitable for late rice growth and development. According to Xinchang commune agricultural station six years in the commune yield of late rice growth period warm record, late rice Nonghu 66 and 44 of the full growth period of 143 days ± 1.1 days, the total accumulated temperature of 3315 ℃ ± 60 ℃, of which The total accumulated temperature of sowing to full spike was 2426 ℃ ± 38 ℃, and the total accumulated temperature was 3414 ℃ ± 83.7 ℃ in 25 years from 1954 to June 20 and from November 10 to June 10, The total accumulated temperature on the 25th is 2620 ° C ± 74.9 ° C. Therefore, our county late japonica calorie conditions can be met, but also a slight balance, which is my county to seize the basic conditions for stable and high yield of late rice. See Table I, Table II.