| 控释氮肥对苹果生长影响及经济效益分析 |
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| 引用本文： | 邵蕾,王丽霞,孙治军,张民.控释氮肥对苹果生长影响及经济效益分析[J].北方园艺,2008(12). |
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| 作者姓名： | 邵蕾 王丽霞 孙治军 张民 |
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| 作者单位： | 1. 中国农业大学,烟台研究院,山东,烟台,264670
2. 山东农业大学,资源与环境学院,山东,泰安,271018 |
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| 基金项目： | 引进国际先进农业科学技术计划(948计划)
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农业部跨越计划
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农业科技成果转化基金
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| 摘 要： | 采用静水释放试验和田间试验方法,研究了有机高分子聚合物包膜控释氮肥的释放特征,并以普通氮肥作对照,研究了包膜控释氮肥对苹果的生长及经济效益的影响.控释肥静水释放试验表明:控释氮素的释放速率分为逐渐增大、释放高峰、逐渐减小3个阶段.大田试验表明:与普通氮肥相比,控释氮肥在苹果整个生长周期内持续的释放养分;在施氮量减少一半的情况下,施用控释氮肥0.458 kg/株比施用普通尿素0.87 kg/株果实产量和经济效益分别提高了30.08%、30%;控释氮肥提高了果实糖、钙、维生素C含量,降低了氮含量.
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| 关 键 词： | 控释氮肥 苹果 经济效益 |
Effects of Controlled-release Nitrogen Fertilizers on Growth of Apple and Analysis of the Corresponding Economic Profit |
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| SHAO Lei,WANG Li-xia,SUN Zhi-jun,ZHANG Min.Effects of Controlled-release Nitrogen Fertilizers on Growth of Apple and Analysis of the Corresponding Economic Profit[J].Northern Horticulture,2008(12). |
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| Authors: | SHAO Lei WANG Li-xia SUN Zhi-jun ZHANG Min |
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| Institution: | SHAO Lei1,WANG Li-xia1,SUN Zhi-jun1,ZHANG Min2(1.Yantai Academe of China Agriculture University,Yantai,Sh,ong 264670,China,2.College of Resources , Environment,Sh,ong Agricultural University,Taian,Sh,ong 271018,China) |
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| Abstract: | Nitrogen release experiments and field experiments were conducted to study release characteristics of the controlled release fertilizers(CRF) coated with organic macromolecule polymer and to probe into the corresponding economic profit on apple tree compared to common urea fertilizer.The nitrogen release experiments results showed that three release stages were found in nitrogen release curve: increasing stage,peak stage,decreasing stage.Field experiments showed that controlled-release pattern of CRF met th... |
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| Keywords: | Controlled release nitrogen fertilizer Apple Economic profit |
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