Effects of nitrogen fertilizer application on CO2 emission,soil temperature and moisture in tobacco fields

doi:10.14088/j.cnki.issn0439-8114.2019.13.007

Abstract

Abstract: In order to investigate the effects of nitrogen fertilizer application on carbon emission in tobacco field， a field experiment was conducted with different tobacco varieties in different areas. The results showed that the CO2 emission rate and nitrate nitrogen content in tobacco field increased significantly when the nitrogen application rate was 75 kg/hm2. Nitrogen application had little effect on soil temperature， and had no effect on soil moisture. The change of soil water content was mainly related to local rainfall. In total， the soil CO2 emissions was significant correlated with soil temperature when the nitrogen application rate was 75 kg/hm2， and has a poor correlation with soil moisture.

Key words: nitrogen fertilizer, CO2 emission, soil temperature, soil moisture

CLC Number:

DU Xing-hua, HE Deng-feng, ZHU Feng, ZHAO Yang-yang. Effects of nitrogen fertilizer application on CO₂ emission,soil temperature and moisture in tobacco fields[J]. HUBEI AGRICULTURAL SCIENCES, 2019, 58(13): 35-39.

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Effects of nitrogen fertilizer application on CO₂ emission,soil temperature and moisture in tobacco fields

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