| 氮肥施用量与施用方法对甘蔗生长的影响 |
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| 引用本文： | 谢金兰,陈引芝,朱秋珍,刘晓燕,吴建明,王维赞.氮肥施用量与施用方法对甘蔗生长的影响[J].中国农学通报,2012,28(31):237-242. |
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| 作者姓名： | 谢金兰 陈引芝 朱秋珍 刘晓燕 吴建明 王维赞 |
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| 作者单位： | 1. 广西农业科学院甘蔗研究所,南宁,530007
2. 广西农业科学院甘蔗研究所,南宁530007;中国农业科学院甘蔗研究中心,南宁530007 |
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| 基金项目： | 广西农业科学院科技发展基金项目“不同施氮量与施用时期对甘蔗生长的影响”(桂农科2011JM07);现代农业产业技术体系建设专项基金(Nycytxgxcxtd-02) |
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| 摘 要： | 为了提高氮肥在甘蔗种植中的利用率，以当地甘蔗当家品种ROC22为材料，设3个不同氮肥施用量和3种不同施用方法，通过对甘蔗农艺性状、产量、品质等的调查，研究氮肥与甘蔗生长的关系。结果表明：增施氮肥可以促进甘蔗分蘖、伸长生长和增粗生长，提高甘蔗产量，但增产量并非随着氮肥施用量增加而增加，以600 kg/hm2尿素施用量增产效果较好。甘蔗蔗糖分则随着氮肥施用量增加有所下降。氮肥早施促进甘蔗早拔节、早生长和提高甘蔗产量，有利于甘蔗蔗糖分的积累和提高甘蔗品质。低氮处理和中氮处理的二次施氮法分别比三次施氮法增产5010 kg/hm2、4600 kg/hm2，高氮处理的一次施氮法比三次施氮法增产8175 kg/hm2；低氮处理和中氮处理的一次施氮法甘蔗蔗糖分分别比三次施氮法提高0.65个百分点和0.79个百分点，高氮处理的二次施氮法甘蔗蔗糖分比三次施氮法提高0.45个百分点。
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| 关 键 词： | 酶活性 酶活性 |
| 收稿时间： | 2012/4/20 0:00:00 |
| 修稿时间： | 2012/6/13 0:00:00 |
Effects of Nitrogen Fertilizer and Application Methods on Sugarcane Growth |
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| Xie Jinlan
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Chen Yinzhi
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Zhu Qiuzhen
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Liu Xiaoyan
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Wu Jianming
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Wang Weizan.Effects of Nitrogen Fertilizer and Application Methods on Sugarcane Growth[J].Chinese Agricultural Science Bulletin,2012,28(31):237-242. |
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| Authors: | Xie Jinlan Chen Yinzhi Zhu Qiuzhen Liu Xiaoyan Wu Jianming Wang Weizan |
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| Institution: | 1,2(1 Sugarcane Research Institute Guangxi Academy of Agricultural Sciences,Nanning 530007;2 Sugarcane Research Center of Chinese Academy of Agricultural Sciences,Nanning 530007) |
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| Abstract: | In order to improve the utilization of nitrogen in the sugarcane.To the main local sugarcane varieties ROC22 as the experimental material.Set of three nitrogen fertilizer rate and three different application methods,studied the relationship between nitrogen and sugarcane growth by investigating sugarcane agronomic characters,yield,quality.The results showed that：increasing nitrogen could promote sugarcane tillering,elongation and thickening,increase sugarcane production.But the amount of increase in cane yield did not increase with increasing nitrogen.Urea application rate of 600 kg/hm 2 had better increase in production.The sucrose content declined with increasing in nitrogen fertilizer.Nitrogen fertilizer applied early could help sugarcane to jointing earlier,grow earlier,improve the cane yield.Nitrogen applied early was conducive to the accumulation of sucrose and improving cane quality.In low nitrogen and middle nitrogen,two application methods yield increased 5010 kg/hm 2,4600 kg/hm 2 respectively,compared with three application methods.In high nitrogen,one application method yield increased 8175 kg/hm 2 compared with three application methods.In low nitrogen and middle nitrogen,one application method,sucrose content increased 0.65 percentage points and 0.79 percentage points respectively,compared with three application methods.In high nitrogen,two application methods sucrose content increased 0.45 compared with three application method. |
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| Keywords: | nitrogen application rate application methods sugarcane growth |
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