桂中地区玉米免耕栽培技术研究

为探索玉米品种太平洋98在桂中地区最佳栽培方式和种植密度。2010年在广西来宾市兴宾区开展不同栽培方式和种植密度对玉米品种太平洋98农艺性状和产量影响的研究。结果表明，免耕栽培方式（A2）比常规耕作（A1）的农艺性状较好，千粒重、理论产量、实际产量分别提高3．23％、6．25％、7．89％；同时在栽培方式相同的条件下，在一定播种密度范围内，玉米产量随着播种密度的增加而增加，以A283即免耕栽培下种植密度为5．25万株nm2，玉米产量最高（8．57t／hm2）。可见，免耕栽培方式下，适当增加播种密度，是挂中地区玉米品种太平洋98比较理想的高产栽培技术措施。

Research on no--tillage cultivation of corn in central Guangxi

In order to explore best-bet cultivation methods and planting density of Pacific 98 in central Guangxi,2010 in Xingbin District,Laibin,the impact experiments of different cultivation ways and planting density of maize on its agronomic features and yield were conducted.The results show that no-tillage cultivation methods(A2) is better than conventional tillage(A1) in agronomic features such as thousand grain weight,theoretical yield and actual yield,increased by 3.23%,6.25%,7.89%;While in the same conditions of cultivation,planting density in a certain range,corn yield is increasing as planting density increases.Under no-tillage cultivation in A2B3 planting density of 52,500 / ha has the highest corn yield(8566.10 kg / ha).So it is understanding that no-tillage cultivation methods and the appropriate increase in planting density are the ideal cultivation measure in Pacific 98 production of central Guangxi.