翻压绿肥后减施氮肥对烤烟产质量的影响

摘要

In order to get the proper reducing rate of the nitrogen fertilizer application in Xiangxi tobacco fields after the green manure,using vetch as material,this paper studied the effect of different N application reduction rate on the agronom-ic characters,economic characters,physical properties and chemical composition on flue-cured tobacco.Results show that the yield,output value and physics properties of flue-cured tobacco improve along with the reduction of proper amount of nitrogen application when turning under vetch green manure,besides,the chemical components are well-balance.Vetch green manure returning can reduce the amount of nitrogen 9 -18 kg /hm2 ,and the best nitrogen reduction rate is 9 kg/hm2.%为明确湘西烟地翻压豆科绿肥后的适宜减施氮量，以箭舌豌豆为材料，研究了不同减施氮量对烤烟农艺性状、经济性状、物理特性和化学成分的影响。结果表明：翻压绿肥箭舌豌豆后适量减施氮肥，可提高烤烟产量和产值，提高烟叶物理性状，烟叶化学成分更加协调。翻压绿肥箭舌豌豆还田可减施氮量9～18 kg／hm2，以减施氮量9 kg／hm2较为适宜。