小麦深种浅覆土技术研究

Research on the Planting Deeply and Covering with Soil Shallowly in Wheat

对西平小麦栽培品种——西农979采用深种浅覆土的栽培方式,即常规播种机播种,间距40 cm宽,播种深为20 cm,靠自然落土将种子覆盖的厚约3 cm左右。结果表明:该栽培模式播种量、发芽率、分蘖率、倒伏情况及产量均比常规播种方式好。主要表现在,播种量减少,甚至可减半;而产量提高,最高可达6%～10%;发芽率提高到83%,抗倒伏率也明显提高。由此说明,深种浅覆土的栽培技术值得大力推广。

In the culture of planting deeply and covering shallowly, the wheat variety Xinong 979 was sowed by the general seeder with sowing space of 40 cm and depth of 20 cm and covered with natural falling soll with the covering depth of about 3.cm. It was found that this culture model was better than the general sowing mode on sowing amount, germination percentage, tillering rate, lodge and yield. This culture model could reduce the sowing amount specially by 50 %, increase the yield being highest up to 6 %-10 %, raise the germination percentage up to 83 % and enhance the lodge resistance, which suggested that the culture technique of planting deeply and covering shallowly was worth to be extended.