金光农场甘蔗土壤养分含量状况研究

Analysis of Nutrient Content in Soil of Sugarcane Field at Jinguang Farm

对金光农场蔗区共1200个土壤样品进行了调查分析。结果表明,金光农场蔗区土壤p H值平均为5.19,p H值<5.5的样本占70.9%;土壤有机质含量平均为21.34 g/kg,在中等水平的样本中占68.25%;全氮含量在中上水平的样本中占88.72%;有效磷、速效钾、交换性钙含量在中等水平的样本中分别占50.46%、50.53%、53.18%;交换性镁含量在偏低水平的样本中占60.78%;有效硫含量非常丰富。最后,对土壤肥力现状与甘蔗产量之间相关性进行了初步的分析和探讨。

The present study was carried out to test 1200 soil samples from sugar cane field at Jinguang farm.The p H values of 70.9% soil samples were not lower than 5.5 with an average of 5.19. The average content of organic substances was 21.34 g/kg, and 68.25% soil samples were at moderate level. For total nitrogen content,88.72% soil samples were at or higher than moderate level. For the content of available phosphorus, available potassium and exchangeable calcium, 50.46%, 50.53% and 53.18% of soil samples were at moderate level,respectively. For the content of exchangeable magnesium, 60.78% soil samples were at low level. It was abundant for the content of available sulfur. In addition, the correlation between the yield of sugarcane and the nutrient content in soil was analyzed.