关键词: 冬闲烟田, 菜肥两用, 油菜, 烤烟, 豫中

Abstract: The objective of this study is to find out the rapeseed genotypes which are suitable for planting in winter fallow tobacco fields in the middle of Henan Province.In the field experiment,9 rapeseed genotypes were tested. The growth period,brassica flower stalk yield and quality，and the effects on tobacco leaf yield and quality were measured.The results showed that,the reproductive period of eight genotypes of rapeseed was appropriate，but Shuangyou 123 was not suitable for planting in winter fallow tobacco fields in central Henan because of its poor cold resistance and long growth period.The brassica flower stalk yields of Zashuang 6,Fengyou 10 and Zashuang 7 were 27 727.80，27 529.05 kg/ha and 25 740.15 kg/ha,respectively,which were significantly higher than those of other genotypes.The crude fiber contents of Fengyou 10 and Zashuang 7 were lower，which were 0. 97% and 0.98% respectively.The vitamin C contents of Zashuang 5 and Fengyou 10 were higher，which were 1. 06 g/kg and 1.04 g/kg respectively.Compared with the control(not planting rape)，the growth of flue‑cured tobacco was faster in the early stage and the yellowing of flue‑cured tobacco was better in the late stage after planting vegetable fertilizer rape seed，and planting Fengyou 10 had the best effect on promoting the yellowing of tobacco leaves in the later stage. After planting rapeseed in winter fallow tobacco fields，the yield，output value，average price and the proportion of top‑grade tobacco were significantly higher than CK,the tobacco yield of Zashuang 7 treatment increased by 67.62%,and the tobacco output value of Fengyou 10 treatment increased by 82.82%.After rapeseed was planted in winter fallow tobacco fields,the nicotine and chloride content of tobacco leaves showed a decreasing trend.The nicotine content in cured tobacco leaves of Zashuang 6 treatment decreased by 45.45%,and the chloride content in cured tobacco leaves of Fengyou 10 treatment decreased by 23.58%.After rapeseed was planted in winter fallow tobacco fields,the aroma quality and flammability of tobacco leaves were improved,and the irritation was decreased.Among them,the sensory quality of flue‑cured tobacco leaves treated with Fengyou 10 was the best.In general，Fengyou 10 is the most suitable rapeseed genotype for planting in winter fallow tobacco fields in central Henan Province.

Key words: Winter fallow tobacco field, Vegetable and fertilizer dual?use, Rapeseed, Flue?cured tobacco, Central area of Henan