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农作物产量是由作物生长发育的特征,气象条件,和栽培技术,三者共同作用的结果。本文通过分期播种试验资料,找出影响桂朝二号产量的主要因子,为进一步做产量预报提供可靠依据。 一、资料来源 采用我站1980—1982年早稻品种桂朝二号分期播种试验资料,每年自2月8日至3月20日每隔10天播种一期,共15个播期,每期在五叶一心达80％时移植,由于试验都在同一块大田,地力均匀,试验小区设有三个重复,发育期观测和产量分析采用统一方法,插植规格及水肥管理基本相同,所以对
Crop yield is the result of crop growth and development characteristics, meteorological conditions, and cultivation techniques, the three together. In this paper, by sowing the test data to find out the main factors that affect the yield of Gui-Chao No.2, which provide a reliable basis for further production forecasting. I. DATA SOURCES The experimental data of the sowing date of early rice variety Gui Cha II from 1980 to 1982 in our station were sown every 10 days from February 8 to March 20 every year for a total of 15 sowing dates Five leaves as soon as 80% of the time transplanted, due to the test in the same field, uniform soil, test plots with three replications, developmental observation and yield analysis using a unified method, planting specifications and water and fertilizer management is basically the same, so