Effects of nitrogen and phosphorus fertilizers and intercropping on uptake of nitrogen and phosphorus by wheat, maize, and faba bean
文献类型: 外文期刊
作者: Li, WX 1 ; Li, L 2 ; Sun, JH 3 ; Zhang, FS 4 ; Christie, P 5 ;
作者机构: 1.China Agr Univ, Dept Plant Nutr, MOE, Key Lab Plant Soil Interact, Beijing 100094, Peoples R China
2.Minist Agr, Key Lab Plant Nutr, Beijing, Peoples R China
3.Gansu Acad Agr Sci, Inst Soils & Fertilizers, Lanzhou, Peoples R China
4.Queens Univ Belfast, Dept Agr & Environm Sci, Belfast, Antrim, North Ireland
5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Lab Environm Remediat, Beijing, Peoples R China
关键词: faba bean;intercropping;fertilizer;maize;nutrient acquisition;wheat
期刊名称:JOURNAL OF PLANT NUTRITION ( 影响因子:1.707; 五年影响因子:1.645 )
ISSN: 0190-4167
年卷期: 2003 年 26 卷 3 期
页码:
收录情况: SCI
摘要: One-third of all the cultivated land area is used for multiple cropping and half of the total grain yield is produced with multiple cropping in China. There have been numerous studies on nutrient acquisition by crops in legume/non-legume intercropping systems, but few on nutrient uptake in cereal/cereal intercropping. This paper describes a field experiment in which integrated wheat/maize and maize/faba bean systems were compared with sole wheat and sole faba bean cropping to assess the effects of intercropping on nutrient uptake by wheat, maize, and faba bean under various application rates of nitrogen (N) and phosphorous (P) fertilizers. Results show that both N and P fertilizers and intercropping enhanced N uptake by wheat, while only P fertilizer and intercropping increased P acquisition by wheat. The advantage of N uptake by border rows of wheat intercropped with maize declined with increasing N fertilizer application rate, but that of P acquisition was not affected by P fertilizer. The amounts of both N and P taken up by maize intercropped with faba bean were much higher than those by maize intercropped with wheat throughout the period of intercropping. Both fertilization and intercropping did not influence the N and P uptake by faba bean.
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