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在云南省通海县进行了烤烟施用菜籽饼肥不同用量试验;不同生育期检测烤烟根际土壤NO3--N变化和烟株第一平展叶硝酸盐含量,结果显示:施用菜籽饼提高了烟叶品质。田烟效果比地烟明显。田烟施用菜籽饼对氮碱比的协调作用最为明显。地烟施用菜籽饼对烟叶糖碱比有较好的协调作用。施用菜籽饼对烟田土壤后期供氮具有微弱促进作用。但对烟叶硝态氮衰退趋势影响较小。
In Tonghai County, Yunnan Province, different application rates of rapeseed cake fertilizer were tested. The changes of NO3 - N in the rhizosphere soil and nitrate content in the first flattened leaves were detected at different growth stages. The results showed that rapeseed cake quality. Tian smoke effect than the smoke obvious. Tobacco rape seed application of nitrogen and alkali than the coordination of the most obvious. The application of rapeseed to ground tobacco has a good coordinating effect on the ratio of nicotine to base of tobacco. Application of rapeseed cake had a weak effect on late stage nitrogen supply in tobacco field. However, it had little effect on the declining trend of nitrate nitrogen in tobacco leaves.