1986年,贺兰县种植小麦180942亩,平均亩产613.4斤,总产11099.2万斤,比1985年增长2825.2万斤,增长34.1％。现总结如下: 一、小麦增产的三个特点一是总产的增加主要靠提高单产。全县小麦面积比去年仅增119亩,但单产增加155.4斤,增长33.9％,保证了总产的增加。二是单产的增加主要靠穗数和千粒重的增加。据县农技站调查,今年小麦亩穗数平均 In 1986, Helan County planted 180,942 acres of wheat, with an average yield of 613.4 kg per mu and a total output of 110,992 kg, an increase of 28,252,000 kg or 34.1% over 1985. Now summarized as follows: First, the three characteristics of wheat yield First, the increase in total output mainly by increasing yields. The county’s wheat area increased by only 119 acres than last year, but yield increased 155.4 pounds, an increase of 33.9%, to ensure an increase in total output. Second, the increase in yield mainly depends on the increase of spikes and 1000-grain weight. According to the county agricultural station survey, this year the average number of acres of wheat per mu