黑龙江省早熟地区玉米宽窄行种植技术应用研究

2008～2009年在黑龙江省克山县进行玉米宽窄行保护性耕作试验，设宽窄行与常规垄作两个处理，在不同生长阶段分别测量土壤水分、土壤容重、土壤硬度和玉米产量。结果表明，宽窄行种植与常规垄作相比，宽窄行种植土壤保水性能比常规垄作效果明显，土壤容重、硬度比常规垄作低，土壤性能得到改善，该技术减少作业环节，降低生产成本，较常规垄作增产8.3%～11.32%。

Application Research on Planting Technique with Wide-Narrow Row for Maize in Early-maturing District of Heilongjiang Province

The experiment was conducted for the maize conservation tillage with wide-narrow row technique in Keshan of Heilongjiang province during 2008-2009. And that put to use two treatments: conventional ridge tillage and wide-narrow row planting. Then, determined the water content, soil bulk density, soil hardness and yield in different growth stages. The results showed that the wide-narrow row planting technique had better effects in water retention capacity of soil, soil bulk density and soil hardness than conventional ridge tillage, so that the soil performance was improved. Moreover, the wide-narrow row planting technique cut down the cost of operations, could increase yield by 8.3%-11.32%.