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[1]刘红江,陈留根,朱普平,等.农田施用水葫芦对水稻干物质生产与分配的影响[J].应用与环境生物学报,2011,17(04):521-526.[doi:10.3724/SP.J.1145.2011.00521]
 LIU Hongjiang,CHEN Liugen,ZHU Puping,et al.Effects of Hyacinth Mulching on Dry Matter Production and Distribution of Rice (Oryza sativa L.)[J].Chinese Journal of Applied & Environmental Biology,2011,17(04):521-526.[doi:10.3724/SP.J.1145.2011.00521]
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农田施用水葫芦对水稻干物质生产与分配的影响()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
17卷
期数:
2011年04期
页码:
521-526
栏目:
研究论文
出版日期:
2011-08-25

文章信息/Info

Title:
Effects of Hyacinth Mulching on Dry Matter Production and Distribution of Rice (Oryza sativa L.)
作者:
刘红江陈留根朱普平盛婧张岳芳郑建初
(江苏省农业科学院农业资源与环境研究所 南京 210014)
Author(s):
LIU Hongjiang CHEN Liugen ZHU Puping SHENG Jing ZHANG Yuefang ZHENG Jianchu
(Institute of Agricultural Resources and Environments, Jiangsu Academy of Agriculture Sciences, Nangjing 210014, China)
关键词:
农田施用水葫芦水稻干物质生产与分配叶面积系数净同化率
Keywords:
hyacinth mulching rice dry matter production and distribution leaf area index net assimilation rate
分类号:
S511.01 : S142.5
DOI:
10.3724/SP.J.1145.2011.00521
文献标志码:
A
摘要:
为促进农田养分循环利用和农业生态环境健康,以粳稻品种运2645为供试材料,设计农田施用水葫芦(将晒干水葫芦按4 500 kg hm-2农田施用)和不施用水葫芦处理(对照),施N量为120 kg hm-2(LN)、240 kg hm-2(NN),研究其对水稻物质生产与分配的影响. 结果表明:1)农田施用水葫芦使水稻移栽~分蘖中期、分蘖中期~拔节期、拔节~抽穗期、抽穗期~穗后20 d和穗后20 d ~成熟期平均分别比对照8.6%、9.8%、12.2%、15.9%和3.1%,使得成熟期生物产量显著增加(+9.0%);2)与干物质生产量相似,水稻平均叶面积指数(LAI)和净同化率(NAR)对水葫芦处理的响应呈相似的季节性变化趋势,但NAR在穗后20 d ~成熟期有所下降;3)农田施用水葫芦对水稻不同生育时期叶片、茎鞘和稻穗占地上部干重的比例影响不大;4)增加施N量能够明显增加水稻的干物质生产量;水葫芦×N的互作效应对水稻干物质生产与分配无明显影响. 5)农田施用水葫芦使水稻生育前、中期干物质生产量增幅较大,对生育后期影响相对较小. 图5 表3 参15
Abstract:
The effects of hyacinth mulching on dry matter (DM) production and distribution of rice were investigated by a field experiment in 2009 to promote farmland nutrient recycling and agricultural ecosystem health. Cultivar Yun 2645 was selected as plant material, and the experiment groups included hyacinth mulching and without hyacinth mulching, and two different levels of N were applied: low N (LN, 120 kg hm-2) and normal N (NN, 240 kg hm-2). The results showed that: 1) The DM production of rice under hyacinth mulching treatment significantly increased by 8.6%, 9.8%, 12.2%, 15.9% and 3.1% during the rice growth periods from transplanting to mid-tillering, mid-tillering to jointing, jointing to heading, heading to 20 d after heading and 20 d after heading to grain maturity, respectively. As a result, the total biomass at maturity increased by 9.0% on average. 2) In general, the seasonal response of crop growth to hyacinth mulching in both leaf area index (LAI) and net assimilation rate (NAR) followed a similar pattern to that of the DM production, except the NAR slightly decreased at 20 d after heading to grain maturity. 3) The weights of leaves, stems and spikes in proportion to the total above-ground DM were no obvious differences with and without hyacinth mulching over the season. 4) The DM production obviously increased with N application increaseing, and there was no interaction between hyacinth mulching and N application observed for the DM production and distribution at majority growth stages. 5) The DM production significantly increased by hyacinth mulching treatment at the early and middle growth stages, whereas little change was observed at the late growth stages. Fig 5, Tab 3, Ref 15

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备注/Memo

备注/Memo:
国家科技支撑计划项目(Nos. 2007BAD89B12,2009BAC63B01)、江苏省博士后基金项目(No. 0902035C)和江苏省农业科学院博士后基金项目(No. 6510907)资助
更新日期/Last Update: 2011-08-16