Effects of Different Fertilization Method on Growth,Nutrient Uptake and Distribution of Flue-cured Tobacco

doi:10.7668/hbnxb.2011.S1.042

Abstract

Abstract: The field experiment studied the influence of single-layer fertilizing way,double-layer fertilizing way and cave-like fertilizing way to the growth and nutrient uptake and distribution of flue-cured tobacco.The experiment showed that the tobacco after the process double-layer fertilizing way came into fast growing period earlier and its index of agronomic character was obviously higher than that after the process single-layer fertilizing way and the process cave-like fertilizing way.The logistic equation described the growth curve with different fertilizations well and the accumulation and accumulated intensity of dry matter of process double-layer fertilizing way were both higher than those of process single-layer fertilizing way and cave-like fertilizing way.The content of N and K in tobacco of double-layer fertilizing way,at every growth period,were higher than those of single-layer fertilizing way and cave-like fertilizing way,and 70 days after the transplanting,the content of K in lower leaves of the double-layer fertilizing way was 10.1% and 32% higher than that in single-layer fertilizing way and cave-like fertilizing way respectively;30-50 days after transplanting,the content of P in upper leaves and middle leaves of process A was higher than that of double-layer fertilizing way and cave-like fertilizing way;50-70 days after transplanting,the result of the double-layer fertilizing way was better than that of process single-layer fertilizing way and cave-like fertilizing way,especially to the content of P in lower leaves.In the fast growing period,the allocation proportion of P and K in upper leaves of the double-layer fertilizing way was larger than that of single-layer fertilizing way and cave-like fertilizing way,while,the allocation proportion of N was smaller than that of single-layer fertilizing way.Double-layer fertilizing way was conducive to the growth of tobacco and the promotion of nutrient uptake and utilization.

Key words: Flue-cured tobacco, Fertilization method, Growth, Nutrient uptake, Distribution

CLC Number:

S572
S147.31

HAN Xiao-fei, WANG Zi-fang, XI Xiang-yin, GAO Ming, XIE Hui-chuan, YANG Chao. Effects of Different Fertilization Method on Growth,Nutrient Uptake and Distribution of Flue-cured Tobacco[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2011, 26(S1): 209-213. doi: 10.7668/hbnxb.2011.S1.042.

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