干旱区生态环境知识资源中心(Arid): 磷肥和栽培密度对半干旱区特用玉米产量的影响

Arid

	磷肥和栽培密度对半干旱区特用玉米产量的影响
其他题名	Effect of P Fertilizer and Planting Density on Yield of Special Maize in Semiarid Area
	展宗冰; 王晓巍
来源期刊	安徽农业科学
ISSN	0517-6611
出版年	2008
卷号	36 期号:19 页码:8042-8043
中文摘要	[目的]为半干旱地区特用玉米种植提供技术支撑。[方法]以高油115为试材,研究了不同密度和施P2O5量处理对特用玉米的产量影响。[结果]增施磷肥和提高密度均使秃顶增多,增施磷肥处理的秃顶大于加大密度的。组合55 500株/hm~2(密度)+112.52 kg/hm~2(磷肥)的经济性状表现最好,其穗长均匀,秃顶长平均为1.5 cm,穗粒数为641粒/穗,百粒重为20.5 g。组合66 750株/hm~2+187.5kg/hm~2产量最高,达到7 851.1 kg/hm~2;组合55 500株/hm~2+262.5 kg/hm~2和组合55 500株/hm~2+187.5 kg/hm~2的产量最低,只有5 697.3和5 766.8 kg/hm~2。密度在66 750株/hm~2时,3个磷肥用量水平,对产量的影响不大。当密度为59 250株/hm~2时,增施磷肥,对产量的负效应显著。[结论]半干旱区梯田地种植特用玉米的适宜密度和最佳施磷量应为59 250~66 750株/hm~2和112.5~187.5 kg/hm~2.
英文摘要	[Objective] The study was to give a technique support for the plant of special maize in semiarid area.[Method] With Gaoyou 115 as tested material,the influence of different planting density and P2O5 application rate on the yield of special maize was investigated.[Result] Increasing P application rate and planting density all increased the bald of maize.The bald in the treatment of increasing P application rate was bigger than that of increasing density.The economic traits in the combination of 55 500 plant/hm~2(density) +112.52 kg/hm~2 (P fertilizer) was best,with uniform ear length,1.5 cm bald,641 grains per ear and 20.5 g of 100-grain weight.The yield in the combination of 66 750 plant/hm~2+187.5 kg/hm~2 was highest(7 851.1 kg/hm~2).The yield in combinations of 55 500 plant/hm +2 62.5 kg/hm~2 and 55 500 plant/hm~2 +187.5 kg/hm~2 was lowest,being 5 697.3 and 5 766.8 kg/hm~2 resp.When the density was 66 750 plant/hm~2,the 3 P fertilizer levels had a little influence on yield.When the density was 59 250 plant/hm~2,the negative effect of increasing P application rate on yield was significant.[Conclusion] The optimum density and P application rate for special maize was 59 250-6 6750 plant/hm~2 and 112.5-187.5 kg/hm~2 resp.in terraced fields of semiarid area.
中文关键词	磷肥施用量 ; 栽培密度 ; 特用玉米
英文关键词	P application rate Planting density Special maize
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:3324956
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/378571
作者单位	展宗冰, 甘肃省农业科学院旱地农业研究所, 兰州, 甘肃 730070, 中国.; 王晓巍, 甘肃省农业科学院旱地农业研究所, 兰州, 甘肃 730070, 中国.
推荐引用方式 GB/T 7714	展宗冰,王晓巍. 磷肥和栽培密度对半干旱区特用玉米产量的影响[J],2008,36(19):8042-8043.
APA	展宗冰,&王晓巍.(2008).磷肥和栽培密度对半干旱区特用玉米产量的影响.安徽农业科学,36(19),8042-8043.
MLA	展宗冰,et al."磷肥和栽培密度对半干旱区特用玉米产量的影响".安徽农业科学 36.19(2008):8042-8043.