行距配置对春玉米种植区土壤含水量的影响

Effect of Different Row Spaces on Soil Water Content in Spring Maize Area

摘要:

2013～2014年,以农华101为试验品种,设置55、65、75、40～90、35～165 cm等5个行距处理,研究不同行距配置对土壤含水量的影响。结果表明:不同行距配置土壤含水量随着土壤深度的增加,遵循先升高再降低的规律,土壤30～80 cm储存水分较多。降雨量较大的年份,行距配置对土壤含水量的影响不明显。在降雨量正常的年份,行距配置对55、65、75 cm均匀行处理影响不明显,行间距增加到一定程度后对土壤含水量的影响较为明显,行距35～165 cm配置的土壤含水量较低,较含水量最高处理低4个百分点。行距配置对40～90 cm处理的土壤含水量没有明显影响。

Abstract:

In 2013 and 2014, using maize variety Nonghua 101 as material, 5 row space treatments（55, 65, 75, 40-90, 35-165 cm） were set to study the effect of different row spaces on soil water content. The results showed that the soil water content in different row spaces increased at first and then decreased with the soil depth, and more water was stored in soil layer of 30-80 cm. In the abundant rainfall year, the influence of row spaces on soil water content was not obvious. In normal rainfall year, effects of row spaces of 55, 65, 75 cm treatments were not obvious, but the difference of soil moisture was more obviously when the row space was greater. Compared to the highest water con.tent treatment, soil moisture content of the 35-165 cm row space treatment was lower by 4%. There was no obvious influence on the soil water content of the 40-90 cm row space treatment.