| 控释氮肥对寒地水稻植株和土壤氮素含量及产量的影响 |
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| 引用本文： | 朱宝国,马晓明,张春峰,贾会彬,于忠和,孟庆英,王囡囡,刘姿彤.控释氮肥对寒地水稻植株和土壤氮素含量及产量的影响[J].农学学报,2014,4(1):25-28. |
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| 作者姓名： | 朱宝国 马晓明 张春峰 贾会彬 于忠和 孟庆英 王囡囡 刘姿彤 |
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| 作者单位： | [1]黑龙江省农业科学院佳木斯分院,黑龙江佳木斯154007 [2]北大荒农业股份有限公司江滨分公司农业研发中心,黑龙江鹤岗154243 [3]黑龙江省农业科学院牡丹江分院,黑龙江牡丹江157041 |
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| 基金项目： | 黑龙江省科技厅项目＂三江平原主要作物育种栽培科技创新服务平台＂（FW11B204）;国家科技支撑项目＂东北平原瘠薄盐碱中低产田改良技术集成示范＂（2012BAD05B01）. |
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| 摘 要： | 在大田条件下，试验设5 个处理：T1 不施氮肥、T2 常规施肥、T3 控释尿素100%、T4 控释尿素90%、T5 控释尿素80%。研究水稻控释氮肥对寒地水稻植株和土壤氮素含量及产量的影响。结果表明： 整个生育期控释氮肥处理提高了土壤铵态氮和硝态氮含量，且铵态氮先下降后升高，抽穗-乳熟期含量最低；硝态氮先升高后下降，抽穗期含量最高。不同氮肥处理植株全氮逐渐升高，成熟期达到最大值，且T3 处理最高。控释氮肥处理产量高于常规施肥处理，且T4 处理产量最高，达到7944.44kg/hm2，与T2 处理相比提高7.3%，与T1 处理相比提高19.0%，差异都达到显著水平。因此，控释氮肥的施用提高了土壤铵态氮和硝态氮及植株全氮的含量，促进了水稻植株干物质的积累，从而提高作物产量。
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| 关 键 词： | 新疆 新疆 陆地棉 铃柄长 性状 产量 纤维品质 |
| 收稿时间： | 2013/7/25 0:00:00 |
| 修稿时间： | 2013/8/22 0:00:00 |
Effects of Controlled Release Nitrogen Fertilizer on Plant and Soil N Concentration and Yield of Rice in Cold Region |
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| Institution: | Zhu Baoguo Ma Xiaoming Zhang Chunfeng Jia Huibin Yu Zhonghe Meng Qingying Wang Nannan (1Jiamusi Branch, Heilongfiang Academy of Agricultural Sciences, Jiamusi 154007 Heilongjlang,China; 2Jiangbin Branch, Beidahuang Agriculture Limited Liability Company, Hegang 154243, Heilongjiang, China; 3Mudanjiang Branch of Heilongfiang Academy of Agricultural Sciences, Mudanjiang 157041, Heilongjiang, China) |
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| Abstract: | For the purpose of application of controlled release nitrogen fertilizer best dosage, five treatments were used to clarify the effect of controlled release nitrogen fertilizer on plant and soil N concentration and yield of rice in cold region. The results showed that controlled release nitrogen fertilizer promote soil ammonium and soil nitrate nitrogen contents of whole growth stage, soil ammonium increased at first, then decreased, the highest content heading stage. Soil nitrate nitrogen contents showed increased first decline, ear-milk stage content minimum; different nitrogen treatment plant total nitrogen gradually raised at maturity to maximum, and T3 treatment the highest. Controlled release nitrogen treatment yield higher than conventional fertilization treatment, T4 treatment was the highest reached 7944.44 kg/hm2, compared with T2 treatment increased by 7.3%, compared with the T1 treatment increased by 19.0%, the difference reached significant level. In addition, controlled release nitrogen fertilizer rational application improved the soil and plant nitrogen content, promoted the rice plant dry matter accumulation, so as to improve crop yield. |
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| Keywords: | Controlled Release Urea Rice in Cold Region Nitrogen Content Yield |
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