EFFECTS OF NITROGEN SUPPLY ON CASSAVA PIGEONPEA INTERCROPPING WITH 3 CONTRASTING CASSAVA CULTIVARS

被引：10
作者：
CENPUKDEE, U
FUKAI, S
机构：
[1] Department of Agriculture, The University of Queensland, Queensland
来源：
FERTILIZER RESEARCH | 1991年 / 29卷 / 03期
关键词：
NITROGEN SUPPLY; CASSAVA CULTIVARS; PIGEONPEA; INTERCROPPING; CANOPY WIDTH;
D O I：
10.1007/BF01052396
中图分类号：
S15 [土壤学];
学科分类号：
0903 ; 090301 ;
摘要：
Three cassava cultivars of contrasting canopy size were grown as a sole crop and in intercropping with pigeonpea under two N supply levels to examine whether the effect of N fertilizer was different in sole crop cassava and in intercropping, and whether it depended on the canopy type of cassava cultivar. Application of N promoted plant height and canopy width of cassava in both cropping systems, and this resulted in increased competitiveness of cassava in intercropping. However, when the most vigorous cassava cultivar was used in intercropping, N supply caused excessive top growth with no increase in tuber yield. The yield of pigeonpea on the other hand was always reduced with N supply in intercropping with any cassava cultivar.
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收藏
页码：275 / 280
页数：6
相关论文
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