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1生产情况我县紧靠淮河、洪河、低洼地在43330hm2左右,每年种植水稻13330hm2。近几年来,随着农业结构的调整和农田水利设施的逐步建成,旱改水,低改高的水稻生产在我县得到快速发展,占粮食比重越来越大,面积上升到20000hm2。产量由秋种粮食总产的22．5%上升到30％。发展水稻生产已成为我县增加粮食总产的重要途径。但在麦稻轮作,实现双高生产,协调麦稻关系上没有得到有效处理,麦稻生产发生了尖锐矛盾,稻田麦常年产量低,制约了午季粮食总产的提高,椐不同类型小麦的调查统计2003～2005年,稻茬与旱茬麦3年平均值相比,穗数少61．5万／hm2,穗粒数少2．7粒,千粒重低2～3g,产量少1500kg／hm2左右。较全部种植旱茬小麦每年少收3500万kg左右。迅速改变稻茬麦的低产面貌,是我县小麦实现单产突破,总产提高的关键问题。
1 Production situation My county is close to the Huaihe River, Honghe, low-lying land around 43330hm2, annual planting of rice 13330hm2. In recent years, with the adjustment of agricultural structure and the gradual establishment of farmland water conservancy facilities, rice production under drought and water change and low elevation has been rapidly developed in our county, accounting for an ever-increasing proportion of grain and the area has risen to 20,000hm2. The output rose from 22.5% of autumn grain output to 30%. The development of rice production has become an important way to increase grain output in our county. However, in the rotation of wheat and rice, the achievement of double high production and the coordination of the relationship between wheat and rice have not been effectively dealt with, the sharp contradiction occurred in the production of wheat and paddy, and the annual output of wheat in paddy field was low, which constrained the increase of total grain output in the afternoon. Survey Statistics From 2003 to 2005, compared with the 3-year average of dry stubble, the stubble number of rice stubble was less than 615,000 / hm2, the number of spikelets was 2.7, the weight of grain was 2 ~ 3g, and the yield was less than 1500kg / hm2 about. More than the entire planted wheat crop received about 35 million kg per year less. Rapid changes in low-yielding rice stubble wheat appearance, wheat yield breakthroughs in our county, the key issue of improving the total output.