临汾市1952—2008年小麦产量与降水量关系及增产对策

Relation between Wheat Yield and Precipitation in Linfen during 1952—2008 and Methods to Improve Yield

通过对临汾市1952—2008年小麦单位产量与降水量(即上年7月至当年5月降水量总和)的关系进行分析,结果表明,小麦单位产量基本上随着降水量的增加而增加,单位毫米降水形成的小麦产量大体随着降水量的增加而减少;以1981年为界,由于科技进步和政策扶持,使得1982—2008年小麦单位产量显著提高。并结合以上分析,提出了小麦的增产对策。

By analyzing the relation between wheat yield and precipitation(from July of the past year to May of this year)from 1952 to 2008 in Linfen.Results shows that the yield of wheat per unit basically increased with the raise of precipitation,the wheat yield per millimeter of precipitation fundamentally decreased with the raise of precipitation.Dividend by the year of 1981,the yield of wheat per unit during 1982—2008 significantly increased due to the progress in production technology and the support of policy.Combined with the analysis above,methods to improve the yield of wheat are advanced.