| 增施氮肥对寒地水稻产量性状的影响 |
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| 引用本文： | 王翠,赵海新,徐希德,黄晓群,马文东,王立楠.增施氮肥对寒地水稻产量性状的影响[J].安徽农业科学,2009,37(22):10441-10442. |
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| 作者姓名： | 王翠 赵海新 徐希德 黄晓群 马文东 王立楠 |
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| 作者单位： | 东北农业大学农学院,黑龙江哈尔滨,150030;黑龙江省农业科学院水稻研究所,黑龙江佳木斯,154026;黑龙江省农业科学院水稻研究所,黑龙江佳木斯,154026;沈阳农业大学农学院水稻研究所,辽宁沈阳,110161;黑龙江省农业科学院水稻研究所,黑龙江佳木斯,154026 |
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| 摘 要： | 目的]研究氮肥用量对寒地水稻产量性状的影响。方法]以龙粳14、龙粳18、龙粳20为材料，研究不同种植密度（18、20穴/m2）下氮肥用量（150、165、180、195kg／hm2）对水稻产量性状的影响。结果]增加N肥用量可提高3个水稻品种的有效穗数；2种密度下，龙粳20的有效穗数最多，龙粳14和龙粳18的有效穗数差异不大；20走／m2种植密度下，各施肥处理水稻产量均高于18穴／m2密度下相应施肥处理；氮肥用量为165ks／hm2时龙粳14和龙粳18的产量最高，氮肥用量为180ks／hm。时龙粳20的产量最高；龙粳14和龙粳18的出米率与施肥量无明显关系，而龙粳20的出米率随施氮量的增加略有升高。结论]施氮量为165～180k吕／hm2时，3个品种的最佳移栽密度为20穴／m2。
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| 关 键 词： | 氮肥 移栽密度 产量 |
Effects of Increasing N Application on Yield Traits of Rice in Cold Area |
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| WANG Cui et al.Effects of Increasing N Application on Yield Traits of Rice in Cold Area[J].Journal of Anhui Agricultural Sciences,2009,37(22):10441-10442. |
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| Authors: | WANG Cui |
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| Institution: | WANG Cui et al(Agricultural College of Northeast Agricultural University,Harbin,Heilongjiang 150030) |
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| Abstract: | Objective] The aim was to study the effects of N application amount on yield traits of rice in cold area.Method] With Longjing 14,Longjing 18,Longjing 20 as the materials,the effects of N application amount(150,165,180 and 195 kg/hm2) on their yield traits under 2 planting densities(18,20 points/m2) were studied.Result] Increasing N application amount could improve the effective panicle number of 3 varieties.Under 2 planting densities,the effective panicle number of Longjing 20 was the most,and those of ... |
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| Keywords: | N fertilizer Planting density Yield |
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