Nitrogen and Phosphorus Uptake and Yield of Wheat and Maize Intercropped with Poplar
| Autor: | Guang Hui Xie, Xiao Qin Dai, Xing Qiang Guo, Peng Li, Yosef Steinberger, Peng Sui |
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| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | Arid Land Research and Management. 22:296-309 |
| ISSN: | 1532-4990 1532-4982 |
| DOI: | 10.1080/15324980802388207 |
| Popis: | This study investigated the N and P uptake and yield performances of winter wheat (Triticum aestivum) and maize (Zea mays) upon intercropping with 1- to 2-year-old poplar (Populus × euramericana cl. “74/76”) trees compared to a sole wheat and maize rotation in fertilized and unfertilized subplots. Aboveground biomass, grain yield, yield components, and N and P contents of wheat and maize were measured in each plot, in addition to soil available N and P. No significant differences in biomass, grain yield, and N and P uptake of wheat were found between the intercropping and sole-crop systems within the same fertilization treatment. Maize biomass and grain yield decreased by 37% and 31%, and 28% and 34% for the fertilized and unfertilized treatment at maize maturity in the same order. The N and P contents in maize intercropped with poplar were found to be significantly lower than in the sole-maize. For the fertilized treatment, intercropping with poplar led to significantly lower soil NO3-N and Olsen-P in th... |
| Databáze: | OpenAIRE |
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