The Effect Of Organic Fertilizers On Soil Improvement Of Tobacco Yield And Quality Of Flue-cured Tobacco

In recent years,due to large-scale application of chemical fertilizers,the land multiple crop index is high and the soil has been overloaded for a long period of time.The problems of soil compaction and fertility caused by this series of factors have seriously affected the healthy development of the tobacco industry in China,In this experiment,based on this status,five organic fertilizers(commercial rapeseed bran,high-carbon soil remediation,compound microbial fertilizer,compound soybean pod paralysis,and carbon-based fertilizer)were tested,It studied and discussed the agronomic traits,chlorophyll content,disease resistance,chemical quality of flue-cured tobacco,soil biochemical properties,and economic benefits of tobacco around organic manure.The results of the study are as follows:1.In terms of agronomic traits:T2,T3,and T6 are coordinated,and all indicators are in line with the requirements of "Medium Smoke".2.During the period of clustering and long-term growth,chlorophyll meets the appropriate range.In the mature period,T2 performed better,followed by T3 and T4,which met the maturity characteristics.T1 content was high and it was not easy to normal yellow.3.The treatment of organic fertilizersare better than that of T1,T2 and T5 are the best,Among them,the T5 anti-TSWV and Alzheimer's disease were the strongest,and the incidence rates were 78.8%and 87.12%lower than those of T1.4.Organic fertilizer is beneficial to improve the quality of tobacco.Among them,the sugar content of organic fertilizer-treated tobacco leaves is lower than T1.The K content in T6 increased by 81.39%over T1,and T3 treatment was 56.59%higher than T1.5.Organic fertilizer had a significant effect on soil improvement,and T4 had the best overall performance.The T4 pH value was decreased by 0.35 compared with T0,and the contents of organic matter,alkaline dissolved nitrogen,and effective calcium increased by 25.56%,26.23%,and 40.20%,respectively.6.The economic indicators of each organic fertilizer treatment are higher than T1.Among them,T3,T6,and T4 perform best,The output value of T3 increased by 602.4 yuan/mu from that of T1,the output value increased by 18.02%,and the proportion of medium-upper smoke increased by 12.52%.7.From the perspective of comprehensive indicators,T3's growth is in line with the requirement of "neutral tobacco".In terms of tobacco quality,T3 has the highest ratio of top-grade tobacco,the highest average price,the best economic benefit,and the best T3 effect.8.Promoting the application of organic fertilizer in tobacco fields is of great significance in protecting soil,enhancing the resistance of tobacco plants,increasing the yield and quality of tobacco leaves,and increasing the enthusiasm of tobacco planters.It is one of the important ways to achieve the sustainable development of the tobacco industry.