澄城县玉米地有机质和全氮现状分析

Analysis on the Organic Matter and Total Nitrogen of Corn Fields in Chengcheng County

为了解澄城县玉米地有机质和全氮分布状况和含量,制定合理有效的施肥方案,对该县的8个乡镇91户农民的玉米地土壤进行采样研究.结果表明:这8个乡镇的有机质平均含量范围在11.11-16.442g/kg,均属于中等级含量;全氮平均含量0.604-0.824g/kg,属于缺乏和很缺乏等级.有机质和全氮均相对缺乏,无极度缺乏和极度丰富现象,属于中等程度变异,总体较为集中,分散程度小.

In order to understand the distribution of organic matter and total nitrogen content in the corn fields in Chengcheng county, and to formulate reasonable and effective fertilization scheme, 91 farmers corn soil of the county＇s 8 townships were sampled and studied.The results show that：the average contents of organic matter of the 8 towns＂ soil were in the range of 11.11-16.442 g/kg,these all belonged to medium level.Total nitrogen ranged in 0.604-0.824 g/kg,and it belonged to poor or lack level. Organic matter and total nitrogen were relatively scarce,showed no extremely lackness or rich phenomenon.These belonged to moderate variability, generally more concentrated, less scattered.