| 有机水溶肥对水稻干物质、氮素积累和转运的影响 |
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| 引用本文： | 曹小闯,李烨锋,吴龙龙,朱春权,朱练峰,张均华,金千瑜.有机水溶肥对水稻干物质、氮素积累和转运的影响[J].作物杂志,2020,36(5):110-924. |
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| 作者姓名： | 曹小闯 李烨锋 吴龙龙 朱春权 朱练峰 张均华 金千瑜 |
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| 作者单位： | 中国水稻研究所水稻生物学国家重点实验室,310006,浙江杭州 |
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| 基金项目： | 国家重点研发计划(2017YFD0300106);国家重点研发计划(2016YFD0200800) |
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| 摘 要： | 采用大田小区试验,研究了有机水溶肥对水稻各器官干物质和氮素积累、转运和分配的影响及其与水稻产量的关系。结果表明,常规施氮条件下,根施肥能显著提高水稻产量,产量达8 288.3kg/hm 2,且根施肥效果优于叶面肥;减氮15%条件下根施肥和叶面肥配合施用能有效缓解减氮对水稻产量的降低作用,较减氮15%处理显著增产3.2%。根施肥和叶面肥均能显著提高水稻抽穗前营养器官干物质、茎鞘和叶片氮素积累量;同时,增加抽穗后叶片向穗的氮转运量,进而提高其氮回收利用率和氮生理利用率。水稻产量与抽穗期茎鞘、叶片（除分蘖期茎鞘外）干物质积累量以及抽穗后茎鞘和叶氮素转运量显著正相关。研究表明,施用有机水溶肥能维持水稻营养生长期较高的干物质和氮素积累量,增强抽穗-成熟期氮素向穗转运能力,促进水稻高产和氮高效利用。
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| 关 键 词： | 水稻 有机水溶肥 干物质 氮素 积累与转运 产量 |
| 收稿时间： | 2020-02-09 |
Effects of Organic Soluble Fertilizer on the Accumulation and Translocation of Dry Matter and Nitrogen of Rice |
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| Cao Xiaochuang,Li Yefeng,Wu Longlong,Zhu Chunquan,Zhu Lianfeng,Zhang Junhua,Jin Qianyu.Effects of Organic Soluble Fertilizer on the Accumulation and Translocation of Dry Matter and Nitrogen of Rice[J].Crops,2020,36(5):110-924. |
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| Authors: | Cao Xiaochuang Li Yefeng Wu Longlong Zhu Chunquan Zhu Lianfeng Zhang Junhua Jin Qianyu |
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| Institution: | State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, Zhejiang, China |
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| Abstract: | A field experiment was carried out to investigate the effects of the application of organic soluble fertilizer (OSF, including the root application and leaf spraying) on the rice yield, the accumulation and translocation of dry matter and nitrogen (N) of rice, and their relationship with rice yield. The results showed that, compared with the traditional N treatment, root application of OSF under the traditional N rate significantly increased rice yield (8 288.3 kg/ha), which was prior to the effect of the leaf spraying. In the treatments of reduced 15% N rate, root application and leaf spraying of OSF significantly alleviated the reducing effect of rice yield due to the reduced N rate, and rice yield was increased by 3.2%. Root application and leaf spraying of OSF treatments significantly improved the accumulation of dry matter and N of the nutritive organs (leaf and stem-sheath) before the heading stage. It was also significantly increased the N translocation in leaves of rice from the heading to maturity stage, which was beneficial for the improvement of N recovery efficiency and N physiological efficiency. There were significant positive correlations between rice yield and the accumulation of dry matter of leaf and stem-sheath at the heading stage, in exception of stem-sheath at the tillering stage. Rice yield was also significantly positive related to the N translocation of leaf and stem-sheath from the heading to maturity stage. Therefore, maintaining the relative higher dry matter and N accumulation of stem-sheaths and leaves in the vegetative period, and the higher N translocation in leaves from the heading to maturity via the application of OSF are beneficial for the higher grain yield and N use efficiency. |
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| Keywords: | Rice Organic soluble fertilizer Dry matter Nitrogen Accumulation and translocation Yield |
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