不同施氮水平对德宏州烤烟品种生长及产质量的影响

目的]为德宏烤烟生产施肥提供理论依据,准确制订施肥技术方案。方法]以云烟87、红花大金元、KRK26这3个烤烟品种为材料,研究不同施氮量对德宏烤烟生长及产质量的影响。结果]不同的施氮水平下,3个参试品种均能表现出较好的特性,随施氮量增加,烟叶产量与产值增加,其中以KRK26产量、产值最高。结论]初步确定了云烟87、红花大金元和KRK26在德宏烟区种植中的最佳施氮量:云烟87为120~135 kg/hm~2,红花大金元为90~105 kg/hm~2,KRK26为105~120 kg/hm~2。

Effects of Nitrogen Fertilization Rates on the Growth,Yield and Quality for Different Flue-cured Tobacco Cultivars in Dehong

Objective] The aim was to provide theoretical basis and plan of nitrogen fertilizer application for flue-cured tobacco production in Dehong Region.Method] The effects of different nitrogen fertilizer rate on tobacco growth, yield and quality of Yunyan 87, Honda, KRK26 flue-cured tobacco cultivars in Dehong Region were studied. Result] The results showed that under different nitrogen application levels, three tested varieties can fully show their varietal characteristics. Increasing the N rate, yield and output value of tobacco showed an increasing trend as well.Among these cultivars, KRK26 had the highest yield and output value. Conclusion] This study provided the optimal nitrogen fertiliz-er application for the main flue-cured tobacco cultivars in Dehong County, as followed:120 -135 kg/hm2 for Yunyan 87 cultivar, 90 -105 kg/hm2 for Hongda cultivar, and 105-120 kg/hm2 for KRK26 cultivar.