垄作栽培对夏玉米土壤理化性状的影响

The influence of soil physical and chemical properties and development of summer maize by ridge planting

2007年在河南省浚县农业科学院试验田,以平作为对照,研究了垄作栽培对夏玉米土壤理化性状及生长发育的影响。结果表明,垄作增加了土壤孔隙度,垄面土壤容重比平作降低4.38%～7.95%,提高了土壤温度,改善了土壤环境、田间小气候环境,玉米产量有所提高,垄作栽培夏玉米产量比平作提高5.91%～12.84%。垄作栽培的夏玉米根系发达,株高及穗位高降低,干物质积累快,生物产量高,粒穗数多,千粒重高,产量性状明显优于传统平作。

This test was carried out in the scientific experimental field of academy of agricultural sciences in Xunxian Agricultural Science Research Institute in Henan province in 2007. With flat planting in comparison, it was researched the influence of soil physicaland chemical properties and development of summer maize by ridge planting. The results showed that the ridge soil bulk density was lower by 4.38% to 7.95% than the flat one, and the ridge planting increased the soil porosity and soil temperature, improved soil environment and field microelimate environment, increased maize production as well, the output was 5.91%N12.84% higher than the flat culture. Ridge planting of summer maize has a developed root system, and its stem internodes shorter, plant height and ear height decreased, dry matter accumulation, biological yield, grain panicles, grain weight, yield traits significantly better than the traditional fiat planting significantly.