论文部分内容阅读
用不同方法测定南雄烟区土壤的田间持水量,结果表明,田间灌水法、室内环刀法测定的土壤田间持水量和在压力膜仪20 kPa压力平衡状态下土壤含水量差异极小。用室内环刀法和压力膜仪法测定的田间持水量代表自然状况下的田间持水量,具有较高的精确度。南雄烟区土壤田间持水量为25.5%。
Different methods were used to determine the field water holding capacity in Nanxiong tobacco-growing areas. The results showed that there was little difference in field water holding capacity between the field irrigation method and the indoor ring-knife method and the soil moisture content under the pressure equilibrium of 20 kPa. The field water holding capacity measured by the ring cutter method and the pressure gauge method represents the field capacity of water under natural conditions with high accuracy. Nanxiong tobacco field soil water holding capacity of 25.5%.