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中文摘要：
在江西红壤旱地，设置大豆、花生间作玉米大田试验，观测分析问作及低施氮（50kg／hm2）条件下玉米植株性状、根干重、单株干物重、叶面积指数、叶绿素含量及产量差异。结果表明，间作和施肥可以增加玉米的株高、节间长和节问粗，其中施肥对玉米株高的影响达到显著水平（P〈0．05）；玉米单株干物重和根干重也明显受到间作和施肥的影响，但间作的效果没有施肥显著；间作和施肥可以增加玉米的叶面积指数和叶绿素含量，但施肥的效果更明显；间作和施肥在提高和改善玉米产量及其构成因素方面也发挥着重要作用，其中施肥对产量存在显著影响（P〈0．05）。
英文摘要：
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 fertil- ization had a significant（ P 〈 0.05） effect on yield.
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