干旱区生态环境知识资源中心(Arid): 不同施氮量下北方稻田一次与分次施氮对水稻产量的影响

Arid

	不同施氮量下北方稻田一次与分次施氮对水稻产量的影响
其他题名	Effect of Single or Multiple N Applications under Different Total N Fertilization on Rice Yield in a Paddy Soil of North China
	褚清河; 潘根兴; 李健英; 李典友; 张旭辉
来源期刊	土壤通报
ISSN	0564-3945
出版年	2008
卷号	39 期号:1 页码:82-86
中文摘要	设计了适量和过量总施氮量下的一次和分次施氮的田间试验，研究了不同施肥方式对山西半干旱地区肥力水平较低的盐渍型水稻土水稻产量的影响。结果表明，适宜氮量（N 198kg hm~(-2)下，水稻插秧前基肥一次性施氮较分三次在不同生育期施氮稻谷平均增产达10％；但过量施氮下，一次性基肥施氮较分三次施用平均减产6．6％。总施氮量小于适宜施氮量时，基肥一次性施氮较分三次施用平均增产则达到30％。插秧前基肥一次性施氮与基肥和分蘖初期分两次施氮相比，稻谷产量无明显差异。这说明插秧前和分蘖初期是该地水稻的有效施肥期。在不施磷肥或磷肥做基肥一次施用而氮肥分次施用的情况下，基肥氮磷施用比例也影响所施用氮肥的肥效；因此，就所试验的肥力较低的盐渍型水稻土来说，可以实行在减量施氮下的插秧前基肥一次性施氮，而不需要追施氮肥，并且在施P_2O_5130kg hm~(-2)的条件下，总施氮190kg hm~(-2)即可满足高产，因而可以减少习惯施氮量的1／3。
英文摘要	A field experiment was conducted with adequate and over loaded amount of N fertilizer respectively in a low-fertility saline paddy soil in Shanxi, China. The effect of single application as basal fertilizer at seedling and multiple applications at tillering and spiking on rice yield was studied. When total N application was 198kg hm~(-2) rice yield was increased by 10% under single application as basal N fertilizer compared to triple applications; However, with total N application exceeding 198kg hm~(-2) reduction of rice yield by 6.6% was observed under single application compared to three time applications. Nevertheless, with total N application below 198 kg hm~(-2) much higher rice yield （by 30%） was reached under single N application than under triple applications although there was no significant difference in rice yield between single application and twice applications. The results here evidenced a most effective N application time at seedling for single rice in the studied soil and single application as basal fertilizer of N could be practical in farm nutrient management. This study also demonstrated that the conventional N application at 300kg hm~(-2) should be reduced by one third （100kg hm~(-2)） for rice under a sound phosphorus application of P_2O_5130 kg ha~(-1) in this soil.
中文关键词	水稻 ; 氮肥 ; 一次性施肥
英文关键词	Rice N fertilization Single application
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:3210086
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/378604
作者单位	褚清河, 南京农业大学农业资源与生态环境研究所, 南京, 江苏 210095, 中国.; 潘根兴, 南京农业大学农业资源与生态环境研究所, 南京, 江苏 210095, 中国.; 李典友, 南京农业大学农业资源与生态环境研究所, 南京, 江苏 210095, 中国.; 张旭辉, 南京农业大学农业资源与生态环境研究所, 南京, 江苏 210095, 中国.; 李健英, 山西省农业科学院农业资源综合考察研究所, 太原, 山西 030006, 中国.
推荐引用方式 GB/T 7714	褚清河,潘根兴,李健英,等. 不同施氮量下北方稻田一次与分次施氮对水稻产量的影响[J],2008,39(1):82-86.
APA	褚清河,潘根兴,李健英,李典友,&张旭辉.(2008).不同施氮量下北方稻田一次与分次施氮对水稻产量的影响.土壤通报,39(1),82-86.
MLA	褚清河,et al."不同施氮量下北方稻田一次与分次施氮对水稻产量的影响".土壤通报 39.1(2008):82-86.