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2003•Xibei nongye xuebaoRequires access

Effect of Different Ratio of Nitrogen Forms on Growth and Quality of Flue-cured Tobacco Leaves

Suilong Ai

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Abstract

Effect of different ratio of nitrogen forms on growth and production quality of flue-cured tobacco leaves was studied. The results showed that increase of NO3-N application in basal manure could improve the early growth and development of tobacco plants,enhance the resistance to mosaic disease and brown spot, raise the quality of leaves,percentage of upper-grade leaves and leaf inner quality. When the rate of NO=N reached 50%,role had been greatest. Hence, 50% of NO=N application in basal manure was the ideal value for producing fine quality leaves and rational yield in practice.

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Effect of different ratio of nitrogen forms on growth and production quality of flue-cured tobacco leaves was studied. The results showed that increase of NO3-N application in basal manure could improve the early growth and development of tobacco plants,enhance the resistance to mosaic disease and brown spot, raise the quality of leaves,percentage of upper-grade leaves and leaf inner quality. When the rate of NO=N reached 50%,role had been greatest. Hence, 50% of NO=N application in basal manure was the ideal value for producing fine quality leaves and rational yield in practice.

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Available abstract

Effect of different ratio of nitrogen forms on growth and production quality of flue-cured tobacco leaves was studied. The results showed that increase of NO3-N application in basal manure could improve the early growth and development of tobacco plants,enhance the resistance to mosaic disease and brown spot, raise the quality of leaves,percentage of upper-grade leaves and leaf inner quality. When the rate of NO=N reached 50%,role had been greatest. Hence, 50% of NO=N application in basal manure was the ideal value for producing fine quality leaves and rational yield in practice.

Key concepts: Curing of tobacco, Horticulture, Nitrogen, Tobacco mosaic virus, Yield (engineering), Agronomy, Biology, Toxicology

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