干旱区生态环境知识资源中心(Arid): 施肥对河西绿洲制种玉米各器官养分吸收及产量的影响

Arid

	施肥对河西绿洲制种玉米各器官养分吸收及产量的影响
其他题名	Influence of Fertilization on Nutrient Uptake and Yield of Seed Corn in Hexi Oasis
	陈浩; 王平; 刘淑英; 张志功
来源期刊	土壤
ISSN	0253-9829
出版年	2014
卷号	46 期号:2 页码:275-280
中文摘要	通过田间小区试验,研究了氮肥、磷肥和钾肥的配合施用对制种玉米氮、磷、钾的养分含量、吸收状况及产量的影响。结果表明,施肥对制种玉米干生物量的累积有明显的促进作用,增施氮、磷肥有利于提高制种玉米干物质的累积,当氮肥过量时,干生物量反而有所下降。合理配施氮肥、磷肥和钾肥,促进了养分比例的协调供给, 明显增加了制种玉米各器官的养分含量、养分吸收量及养分收获指数。合理配施氮、磷肥能使制种玉米具有明显的增产效果。每生产100 kg 玉米籽粒,最高产量氮素、磷素、钾素的吸收量分别为N:2.25 kg,P_2O_5:0.60 kg 和 K_2O:2.40 kg, 植株吸收养分适宜比例(N︰P_2O_5︰K_2O_3.73︰1︰3.97。在制种玉米生产中推荐施肥量为N 360 kg/hm~2,P_2O_5 180 kg/hm~2, K_2O 90 kg/hm~2。
英文摘要	The matched fertilization of N, P and K that affect seed corns nutrient content of N, P and K absorption and output was studied through field experiment. The results showed that fertilization promoted obviously dry biomass accumulation of seed corn. Increasing N and P fertilization could improve the accumulation of dry matter of plants, but the accumulation of dry matter reduced when N was excessive. Reasonable collocation of fertilization of N, P and K promoted the coordinative supply of nutrients proportion and significantly increased nutrient content, nutrient uptake and nutrient harvest index in each organ of seed corn. These results provided a solid foundation for increase of maize yield. Reasonable collocation of fertilization of N, P and K can increase seed corns production obviously. Yield-increasing effect of P was less obvious than that of N. For every 100 kg production of corn seed, the optimal uptake of N, P and K respectively was N: 2.25 kg, P_2O_5: 0.60 kg and K_2O: 2.40 kg, and the recommended fertilization was N 360 kg/hm~2, P_2O_5 180 kg/hm~2 and K_2O 90 kg/hm~2.
中文关键词	河西绿洲 ; 氮磷钾 ; 制种玉米 ; 养分吸收
英文关键词	Hexi oasis NPK Corn seed production Nutrient absorption
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5138235
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231829
作者单位	甘肃农业大学资源与环境学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	陈浩,王平,刘淑英,等. 施肥对河西绿洲制种玉米各器官养分吸收及产量的影响[J]. 甘肃农业大学,2014,46(2):275-280.
APA	陈浩,王平,刘淑英,&张志功.(2014).施肥对河西绿洲制种玉米各器官养分吸收及产量的影响.土壤,46(2),275-280.
MLA	陈浩,et al."施肥对河西绿洲制种玉米各器官养分吸收及产量的影响".土壤 46.2(2014):275-280.