辽南地区不同耕作方式对玉米产量及经济效益的影响

Effects of Different Tillage Patterns on Maize Yield and Economic Benefit in Southern Region of Liaoning Province

在辽南地区(海城和瓦房店)以当地3个玉米主栽品种为材料,采用裂区的试验设计,分析了免耕平作和常规垄作两种耕作方式对玉米产量、土壤含水量、出苗率、收获有效穗数、主要农艺性状和经济效益的影响。产量方差分析和多重比较结果表明:耕作方式对玉米产量的影响差异不显著;免耕平作在播种期和苗期的土壤含水量、出苗率、收获有效穗数均高于常规垄作。两种耕作方式经济效益对比结果表明:免耕平作节省机耕费和人工费,经济效益高于常规垄作。从节本增效的角度考虑,辽南地区免耕平作优于常规垄作。

In this experiment, three major varieties were selected and according to split-plot design, we analyzed the effects of two tillage patterns,including no-tillage ridge culture and conventional ridge tillage,on maize yield, soil moisture content, germination rate, productive ear number, main agronomic characters and economic benefit in southern Liaoning province(Haicheng and Wafangdian).The results showed that the two tillage patterns have no significant effect on maize production, and no-tillage ridge culture was higher than ridge tillage on soil moisture content, germination rate, and productive ear number. The results showed that no-tillage ridge culture can save mechanized farming costs and labor costs and the economic benefits are higher than that of conventional ridge tillage, and which is deserved to? generalize in southern Liaoning Province.