不同施氮量对新两优6号产量因子的影响

【目的】研究不同氮肥施用量对新两优6号产量因子的影响,探索适合广西桂中地区超级稻最佳施氮水平。【方法】2009年,以超级稻新两优6号为材料,进行不施氮（N0）、189kg/ha（N1,比当地施氮水平降低30%）、270kg/ha（N2,当地施氮水平）、351kg/ha（N3,比当地施氮水平提高30%）4个不同施氮处理进行田间比较试验。【结果】施氮处理较不施氮处理产量差异达显著水平;N2较N1的产量差异达极显著水平。各处理的有效穗、理论产量随着施氮量的增加均比对照具有极其明显的优势。【结论】施氮量过多或过少都会直接影响水稻的生长和产量,新两优6号适宜的施氮量为每公顷纯氮270kg。...

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Published in南方农业学报 Vol. 42; no. 5; pp. 521 - 523
Main Author 李小霞 覃凯旋 沈峰杰 罗同平 陈桂兰 覃瑞德 向花香 黄斌
Format Journal Article
LanguageChinese
Published 广西农业科学院桂中分院/广西柳州市农业科学研究所,广西柳州,545003 2011
Subjects
产量
新两优6号
氮肥
超级稻
新两优6号
产量
超级稻
氮肥
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ISSN2095-1191
DOI10.3969/j.issn.2095-1191.2011.05.016

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Summary:【目的】研究不同氮肥施用量对新两优6号产量因子的影响,探索适合广西桂中地区超级稻最佳施氮水平。【方法】2009年,以超级稻新两优6号为材料,进行不施氮（N0）、189kg/ha（N1,比当地施氮水平降低30%）、270kg/ha（N2,当地施氮水平）、351kg/ha（N3,比当地施氮水平提高30%）4个不同施氮处理进行田间比较试验。【结果】施氮处理较不施氮处理产量差异达显著水平;N2较N1的产量差异达极显著水平。各处理的有效穗、理论产量随着施氮量的增加均比对照具有极其明显的优势。【结论】施氮量过多或过少都会直接影响水稻的生长和产量,新两优6号适宜的施氮量为每公顷纯氮270kg。
Bibliography:super rice; Xinliangyou 6; nitrogen fertilizer; yield
45-1381/S
[Objective]In order to find out the best nitrogen fertilizer application rates for rice variety Xinliangyou 6 in the middle region of Guangxi, the effect of different rates of nitrogen application on yield of rice was studied. [Method]In 2009, a field experiment on super rice variety was conducted with four treatments of different rates of N fertilizer, viz., no N fertilizer （N0）, 189 kg/ha （N1, 30% lower than traditional nitrogen level）, 270 kg/ha （N2, traditional nitrogen level）, and 351 kg/ha （N3, 30% higher than the traditional nitrogen level）. [Results]Significant differences in the yield of rice treated N1, N2 and N3 were observed compared to N0. The highest yield was recorded with application of 270 kg / ha N （N2）. This treatment also recorded the highest effective panicles, total grains, filled grains, 1000-grain weight and seed setting rate. [Conclusion]The amount of nitrogen fertilizer, higher or lower, affects the rice growth and yield.
ISSN:2095-1191
DOI:10.3969/j.issn.2095-1191.2011.05.016