| Effects of intercropping and low nitrogen fertilization on maize growth and yield in dryland |
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| DOI：10.7606/j.issn.1000-7601.2012.05.06 |
| Key Words: maize intercropping fertilization leaf area index chlorophyll yield |
| Author Name | Affiliation | | ZHANG Xiangqian | Agricultural College, Nanjing Agricultural University，Nanjing, Jangsu 210095, China | | HUANG Guoqin | Research Centre on Ecological Sciences, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China | | BIAN xinmin | Agricultural College, Nanjing Agricultural University，Nanjing, Jangsu 210095, China | | ZHAO Qiguo | Institute of Soil Science, Chinese Academy of Sciences, Nanjing, Jangsu 210008, China |
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| Abstract: |
| A field experiment of soybean/maize and peanut/maize intercropping was carried out in Jiangxi upland red soil to observe and analyze the differences of maize plant traits, root dry weight, dry matter weight per plan, leaf area index, chlorophyll content and yield under the condition of intercropping and low-nitrogen fertilization（50 kg／hm2）. The results showed that intercropping and fertilization could increase plant height, internode length and thickness of maize, and the fertilization had a significant（P＜0.05）effect on maize plant height. The dry matter weight per plant and root dry weight of maize were also obviously affected by intercropping and fertilization, but the effect of intercropping was not more obvious than that of fertilization. Leaf area index（LAI） and chlorophyll content of maize could also be enhanced by intercropping and fertilization, but the effect of fertilization was more obvious than that of intercropping. Intercropping and fertilization played an important role in increasing and improving yield and yield components of maize, and the fertilization had a significant（P＜0.05） effect on yield. |
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