Effects of root interaction and nitrogen fertilization on the chlorophyll content, root activity, photosynthetic characteristics of intercropped soybean and microbial quantity in the rhizosphere
A pot experiment using root separation technique was conducted to further understand the effect of root interaction played in intercropping system under different nitrogen levels. The results showed that root interaction and increasing nitrogen application increased the green leaf area per plant and...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Czech Academy of Agricultural Sciences
2013-02-01
|
| Series: | Plant, Soil and Environment |
| Subjects: | |
| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-201302-0006_effects-of-root-interaction-and-nitrogen-fertilization-on-the-chlorophyll-content-root-activity-photosyntheti.php |
| _version_ | 1797898220220710912 |
|---|---|
| author | X. Zhang G. Huang X. Bian Q. Zhao |
| author_facet | X. Zhang G. Huang X. Bian Q. Zhao |
| author_sort | X. Zhang |
| collection | DOAJ |
| description | A pot experiment using root separation technique was conducted to further understand the effect of root interaction played in intercropping system under different nitrogen levels. The results showed that root interaction and increasing nitrogen application increased the green leaf area per plant and chlorophyll content of soybean, but their effects gradually decreased with increasing nitrogen fertilization level. Root interaction and increasing nitrogen application can improve photosynthetic characteristics of soybean, but root interaction only had a significant effect under low nitrogen level. The number of bacteria, fungi, actinomycetes and Azotobacteria was also obviously affected by root interaction and nitrogen fertilization, and the number of Azotobacteria presented a changing trend of first increased and then decreased with increasing nitrogen fertilization level. Root interaction and increasing nitrogen application improved soybean yield and its components, but their effects gradually decreased with increasing nitrogen fertilization level. The root activity of soybean was obviously affected by root interaction, and was significantly positively correlated with green leaf area per plant, chlorophyll content, photosynthetic rate and economic yield per plant. Our results indicate that the advantage effect of root interaction and increasing nitrogen application will be partially inhibited with an increasing nitrogen fertilization level. |
| first_indexed | 2024-04-10T08:10:59Z |
| format | Article |
| id | doaj.art-8e42274a8f9545369518a7d08c266687 |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-04-10T08:10:59Z |
| publishDate | 2013-02-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj.art-8e42274a8f9545369518a7d08c2666872023-02-23T03:46:00ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682013-02-01592808810.17221/613/2012-PSEpse-201302-0006Effects of root interaction and nitrogen fertilization on the chlorophyll content, root activity, photosynthetic characteristics of intercropped soybean and microbial quantity in the rhizosphereX. Zhang0G. Huang1X. Bian2Q. Zhao3Agricultural College, Nanjing Agricultural University, Nanjing, Jiangsu Province, P.R. ChinaAgricultural College, Nanjing Agricultural University, Nanjing, Jiangsu Province, P.R. ChinaAgricultural College, Nanjing Agricultural University, Nanjing, Jiangsu Province, P.R. ChinaNanjing Institute of Soil Science, Chinese Academy of Sciences, Nanjing, Jiangsu Province, P.R. ChinaA pot experiment using root separation technique was conducted to further understand the effect of root interaction played in intercropping system under different nitrogen levels. The results showed that root interaction and increasing nitrogen application increased the green leaf area per plant and chlorophyll content of soybean, but their effects gradually decreased with increasing nitrogen fertilization level. Root interaction and increasing nitrogen application can improve photosynthetic characteristics of soybean, but root interaction only had a significant effect under low nitrogen level. The number of bacteria, fungi, actinomycetes and Azotobacteria was also obviously affected by root interaction and nitrogen fertilization, and the number of Azotobacteria presented a changing trend of first increased and then decreased with increasing nitrogen fertilization level. Root interaction and increasing nitrogen application improved soybean yield and its components, but their effects gradually decreased with increasing nitrogen fertilization level. The root activity of soybean was obviously affected by root interaction, and was significantly positively correlated with green leaf area per plant, chlorophyll content, photosynthetic rate and economic yield per plant. Our results indicate that the advantage effect of root interaction and increasing nitrogen application will be partially inhibited with an increasing nitrogen fertilization level.https://pse.agriculturejournals.cz/artkey/pse-201302-0006_effects-of-root-interaction-and-nitrogen-fertilization-on-the-chlorophyll-content-root-activity-photosyntheti.phpgas-exchange parameternitrogen nutritionplant pigmentsroot separation |
| spellingShingle | X. Zhang G. Huang X. Bian Q. Zhao Effects of root interaction and nitrogen fertilization on the chlorophyll content, root activity, photosynthetic characteristics of intercropped soybean and microbial quantity in the rhizosphere Plant, Soil and Environment gas-exchange parameter nitrogen nutrition plant pigments root separation |
| title | Effects of root interaction and nitrogen fertilization on the chlorophyll content, root activity, photosynthetic characteristics of intercropped soybean and microbial quantity in the rhizosphere |
| title_full | Effects of root interaction and nitrogen fertilization on the chlorophyll content, root activity, photosynthetic characteristics of intercropped soybean and microbial quantity in the rhizosphere |
| title_fullStr | Effects of root interaction and nitrogen fertilization on the chlorophyll content, root activity, photosynthetic characteristics of intercropped soybean and microbial quantity in the rhizosphere |
| title_full_unstemmed | Effects of root interaction and nitrogen fertilization on the chlorophyll content, root activity, photosynthetic characteristics of intercropped soybean and microbial quantity in the rhizosphere |
| title_short | Effects of root interaction and nitrogen fertilization on the chlorophyll content, root activity, photosynthetic characteristics of intercropped soybean and microbial quantity in the rhizosphere |
| title_sort | effects of root interaction and nitrogen fertilization on the chlorophyll content root activity photosynthetic characteristics of intercropped soybean and microbial quantity in the rhizosphere |
| topic | gas-exchange parameter nitrogen nutrition plant pigments root separation |
| url | https://pse.agriculturejournals.cz/artkey/pse-201302-0006_effects-of-root-interaction-and-nitrogen-fertilization-on-the-chlorophyll-content-root-activity-photosyntheti.php |
| work_keys_str_mv | AT xzhang effectsofrootinteractionandnitrogenfertilizationonthechlorophyllcontentrootactivityphotosyntheticcharacteristicsofintercroppedsoybeanandmicrobialquantityintherhizosphere AT ghuang effectsofrootinteractionandnitrogenfertilizationonthechlorophyllcontentrootactivityphotosyntheticcharacteristicsofintercroppedsoybeanandmicrobialquantityintherhizosphere AT xbian effectsofrootinteractionandnitrogenfertilizationonthechlorophyllcontentrootactivityphotosyntheticcharacteristicsofintercroppedsoybeanandmicrobialquantityintherhizosphere AT qzhao effectsofrootinteractionandnitrogenfertilizationonthechlorophyllcontentrootactivityphotosyntheticcharacteristicsofintercroppedsoybeanandmicrobialquantityintherhizosphere |