机插水稻高产栽培关键技术的适宜值

应用生态学报

机插水稻高产栽培关键技术的适宜值

彭长青^1，2;李世峰²;卞新民¹;吴九林²;周宇²;刘蓉蓉²

¹南京农业大学，南京 210095；²南通市作物栽培技术指导站，南通 226006

收稿日期:2006-02-11 修回日期:2006-06-30 出版日期:2006-09-18 发布日期:2006-09-18

Appropriate parameters for high-yielding cultivation of machine-transplanted rice

PENG Changqing^1,2; LI Shifeng²; BIAN Xinmin¹; WU Jiulin²;ZHOU Yu²;LIU rongrong²

¹Nanjing Agricultural University, Nanjing 210095, China; ²Crop Cultivation Technology Station of Nantong City, Nantong 226006, China

Received:2006-02-11 Revised:2006-06-30 Online:2006-09-18 Published:2006-09-18

摘要/Abstract

摘要： 在大田栽培条件下，以武香粳14为材料，对机插水稻的育秧、移栽、肥料运筹等高产栽培技术适宜值进行研究.结果表明，芽谷播量以每盘（1624 cm²）150～180g为最佳；壮秧剂处理的秧苗质量与机插质量均好于其它复合肥处理，复合肥处理苗床的用量以N∶P₂O₅∶K₂O=10∶10∶5及150 g·m^-2复合肥较好；双膜育秧的秧苗须在播后21 d内机插大田；小棵密植（取秧面积1.26 cm²、株距11.7 cm、行距30 cm）有利于提高机插水稻的个体质量及群体水平；大田施N量为315 kg·hm^-2、基蘖肥∶穗肥=6∶4的处理产量最高.单位面积总颖花量的显著提高是机插水稻产量增加的主要原因.

关键词: 温带-亚热带过渡带, 景观变迁, 农业景观异质性, 景观通道作用

Abstract: A field experiment with japonica rice variety Wuxiangjing 14 in 2002～2005 showed that the appropriate sowing rate was 150～180 g per tray (1624 cm²), seedling-strengthening agent was more conducive than compound fertilizer in improving the quality of machine-transplanted seedlings, the rational dose of compound fertilizer (N-P₂O_5^-K₂O) was 150 g·m^-2, seedlings should be machine-transplanted within 21 days after sowing, densely planting a fewer seedlings in each cluster could improve the individual and population quality of machine-transplanted rice, and applying 315 kg·hm^-2 of N and 6∶4 of basal-tillering: heading fertilizer could obtain the highest rice yield. The marked increase of glumous flowers per unit area was the main cause of the increase of machine-transplanted rice yield.

Key words: Ecotone of temperate and subtropical zone, Landscape change, Agricultural landscape heterogeneity, Landscape conduit

彭长青^1，2;李世峰²;卞新民¹;吴九林²;周宇²;刘蓉蓉². 机插水稻高产栽培关键技术的适宜值[J]. 应用生态学报.

PENG Changqing^1,2; LI Shifeng²; BIAN Xinmin¹; WU Jiulin²;ZHOU Yu²;LIU rongrong². Appropriate parameters for high-yielding cultivation of machine-transplanted rice[J]. Chinese Journal of Applied Ecology.

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