摘要
试验表明在豫西丘陵地区,对烟草合理施用氮磷化肥具有明显的增产作用。每亩施纯氮3kg其产值高于2kg,N:P_2O_5=1:1～1.5为宜。
The experiment results show that nitrogen and phosphorus fertili-zation has significant increasing yield effects on the tobacco in Yuxi hilly region. The output value of applying nitrogen 3 Kg per mu is higher than that of applying nitrogen 2 Kg per mu. The most suitable ratio of N and P2O5 is 1 and 1 to 1.5.
关键词
产值
纯氮
五氧化二磷
Tobacco
Output value
Nitrogen
Phosphorus
