龙岩市烟区土壤养分状况及烟后稻肥料效应试验

Soil nutrient status and fertilizer efficacy experiment of post-tobacco rice in tobacco-growing area of Longyan City

摘要: 采集龙岩市烟区土壤进行测定分析，结果表明:pH值平均为4.7，属酸性土壤；有机质、碱解氮含量属中等水平；有效磷属丰富水平；速效钾含量属缺乏水平；土壤养分含量均属中等变异，地力较均衡。并选择高、中、低肥力田块进行烟后稻3414试验，结果表明:当高、中、低肥力地块N、P₂O₅、K₂O每667 m²施用量分别为 8.98、6.61、9.19 kg，3.61、1.19、7.63 kg，3.47、6.22、12.6 kg时，烟后稻的最高产量分别为589.31 kg、537.53 kg、520.25 kg。

Abstract: Soil samples in tobacco-growing area of Longyan City were analyzed and determined. The results showed that averaged value of pH was 4.7, belonged to the acid soil; organic matter and alkali hydrolyzable nitrogen were at the middle level; available phosphorus belonged to abundance level; the content of quick-acting potassium was lack; moderate variability in soil nutrient condition, soil fertility was at balanced status. A 3414 test of post-tobacco rice was carried out in selected fields with high, medium and low fertility, results showed that the applied amount of N, P₂O₅, K₂O per 667 m² were 8.98, 6.61, 9.19 kg, 3.61, 1.19, 7.63 kg and 3.47, 6.22, 12.6 kg respectively, the highest yield of post-tobacco rice were 589.31 kg, 537.53 kg, 520.25 kg respectively.