| 引用本文: | 何军,何天楷,张宇航,等.不同水肥处理水稻氮磷吸收利用及产量试验研究[J].灌溉排水学报,0,():-. |
| HE Jun,HE Tiankai,ZHANG Yuhang,et al.不同水肥处理水稻氮磷吸收利用及产量试验研究[J].灌溉排水学报,0,():-. |
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| 不同水肥处理水稻氮磷吸收利用及产量试验研究 |
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何军1,2, 何天楷1, 张宇航1, 钟盛建3, 高明利4, 赵树君3, 陈扬3, 朱子荣3, 陈莹3
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1.三峡大学水利与环境学院;2.三峡大学三峡库区生态环境教育部工程研究中心;3.三峡大学S水利与环境学院;4.湖北省漳河工程管理局
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| 摘要: |
| 我国水稻栽培过程中肥料利用率普遍较低。【目的】寻求肥料高效利用的水稻水肥调控模式。【方法】开展了2种灌溉模式：W1-淹水灌溉，W2-间歇灌溉，以及两种施肥类型：N1-常规肥，N2-缓释肥的水肥处理下的水稻测坑试验。【结果】缓释肥条件植株的氮素收获指数(NHI)达到69.0%(W1)和71.6%(W2)，分别比常规肥条件66.2%和64.1%高出2.8%和7.5%；磷素收获指数(PHI)达到84.1%(W1)和86.7%(W2)，分别比常规肥条件83.6%和82.3%高出0.5%和4.4%。间歇灌溉模式下施用缓释肥植株的氮、磷肥偏生产力为58.4kg/kg和145.9kg/kg，比淹灌模式下的氮、磷肥偏生产力高出1.2%和1.1%，籽粒产量也达到最大值10505kg/hm2，比淹灌缓释肥处理产量10386kg/hm2高出1.1%。【结论】间歇灌溉缓释肥调控模式能提高肥料利用率，增加作物的产量。 |
| 关键词: 水肥处理;全氮;全磷;产量 |
| DOI： |
| 分类号:S271; X592 |
| 基金项目:湖北省教育厅科学技术研究项目(Q20161206)；宜昌市应用基础研究项目(A17-302-a01). |
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| Experimental Study on N and P Absorption and Utilization and Yield of Rice under Different Water and Fertilizer Treatments |
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HE Jun,HE Tiankai,ZHANG Yuhang,et al
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1.College of Hydraulic & Environmental Engineering, China Three Gorges University;2.Engineering Research Center of Ecoenvironment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University,;3.Hubei Zhanghe Hydranlic Project Administration Bureau
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| Abstract: |
| 【Background】The utilization efficiency of fertilizers in rice cultivation in China is low.【Objective】To seek the regulation mode of rice to water and fertilizer with high efficiency of fertilizer utilization.【Method】Two irrigation modes: W1-flood irrigation, W2-alternate wetting and drying, as well as two types of fertilization: N1-conventional fertilizer, N2-slow-release fertilizer, were carried out in rice pit test.【Result】The results showed that the nitrogen harvest index (NHI) of the plants treated with slow-release fertilizer reached 69.0% (W1) and 71.6% (W2), which were2.8% and 7.5% higher than the conventional fertilizer treatment of 66.2% and 64.1%, respectively; phosphorus harvest index (PHI) reached 84.1% (W1) and 86.7% (W2), which were 0.5% and 4.4% higher than 83.6% and 82.3% of conventional fertilizer treatment, respectively. The partial productivity of nitrogen and phosphorus fertilizers applied to slow-release fertilizer plants under alternate wetting and drying mode were 58.4kg/kg and 145.9kg/kg, which were 1.2% and 1.1% higher than that of flood irrigation mode. The grain yield also reached the maximum value of 10505kg /hm2 which was 1.1% higher than the yield of 10386kg/hm2 under the treatment of flood irrigation slow-release fertilizer.【Conclusion】Alternate wetting and drying and slow-release fertilizer mode can improve fertilizer utilization and increase crop yield. |
| Key words: water and fertilizer treatment, total nitrogen, total phosphorus, yield |
