Abstract Zeolite (Z) has been widely used for improving rice production, but there is a lack of information on how nitrogen (N) accumulation and translocation affect yield performance of paddy field in the alternate wetting and drying irrigation (AWD) amended with zeolite. In this study, a 2-year field experiment with installed lysimeters was carried out to determine the influence of Z application (0, 5 and 10 t Z ha−1) on rice yield, tiller number, leaf area index (LAI), dry matter accumulation and translocation (DMA and DMT), N accumulation and translocation (NA and NT), inorganic N content in soil under two irrigation regimes (CF: continuously flooded irrigation, AWD). The results showed that AWD didn’t affect rice grain yield in 2016, but reduced it in 2017 without Z application; and rice yield was not affected by AWD with the application of 10 t Z ha−1 in two years, relative to CF. AWD reduced highest and ineffective tiller number in 2016, and highest and final tiller number in 2017; as well as LAI after joint-booting stage, relative to CF. Z amendment significantly increased highest and final tiller number, but didn’t affect ineffective tiller number; and increased LAI after joint-booting stage. The principal components analysis showed that grain yield was more significantly correlated with the panicles per m2, NT, and aboveground DMA and NA after panicle-initiation stage. As compared to CF, AWD significantly reduced aboveground DMA after panicle-initiation stage; aboveground NA after joint-booting stage in both years; and NT in 2016, but not in 2017. Z amendment significantly improved aboveground DMA and NA after tillering stage, as well as NT and panicles per m2. In addition, AWD with Z amendment significantly improved inorganic N content in soil.

中文翻译：

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沸石改良剂在干湿灌溉稻田中提高水稻产量、氮积累和转运

摘要 沸石（Z）已被广泛用于提高水稻产量，但缺乏关于氮（N）积累和转运如何影响用沸石改良的干湿交替灌溉（AWD）稻田产量性能的信息。在这项研究中，安装了蒸渗仪进行了为期 2 年的田间试验，以确定施用 Z 量（0、5 和 10 t Z ha−1）对水稻产量、分蘖数、叶面积指数 (LAI)、干物质积累和转运（DMA 和 DMT），氮积累和转运（NA 和 NT），两种灌溉方式下土壤中无机氮含量（CF：连续洪水灌溉，AWD）。结果表明，AWD对2016年水稻产量没有影响，但在2017年不施Z降低了；相对于CF，两年内施用10 t Z ha-1 的水稻产量不受AWD 的影响。2016年全轮驱动减少最高和无效分蘖数，2017年减少最高和最后分蘖数；以及联合启动阶段后的 LAI，相对于 CF。Z修正显着增加了最高分蘖数和最终分蘖数，但不影响无效分蘖数；并在联合启动阶段后增加 LAI。主成分分析表明，穗萌发期后籽粒产量与每平方米穗数、NT、地上DMA和NA的相关性更显着。与CF相比，AWD显着降低了穗起始阶段的地上DMA；两年联合启动阶段后的地上NA；和 NT 在 2016 年，但不是在 2017 年。Z 改良剂显着提高了分蘖期后的地上 DMA 和 NA，以及每平方米的 NT 和穗数。此外，AWD 与 Z 修正显着提高了土壤中的无机 N 含量。