中国稻米2017，Vol.23Issue(4)：67-70,4.DOI:10.3969/j.issn.1006-8082.2017.04.012
不同氮肥水平下蚯蚓粪施用对水稻生长特性及产量的影响
Effects of Earthworm Casts Application on Growth and Yield of Rice under Different Ni-trogen Rate
赵春容 1陈佳娜 1方升亮 1邹应斌 1单双吕 1王玉梅 1罗凯 1周雪峰 1黄敏 1张恒栋 1范龙 1曹放波1
作者信息
- 1. 湖南农业大学南方粮油作物协同创新中心,长沙410128
- 折叠
摘要
Abstract
In order to explore the effects of earthworm casts on growth and yield of rice under different nitrogen application rate, a mi-cro-plot field experiment was conducted under three levels of nitrogen fertilizer (N1, 9 g/m2;N2,12 g/m2;N3,15 g/m2)and three levels of earthworm casts (EC0, 0; EC1, 16.88 kg/m2; EC2, 33.76 kg/m2). The results showed that the grain yield, effective panicle numbers and shoot dry weight under different nitrogen levels all ranked as EC2> EC1> EC0. The grain yield of EC2 and EC1 were higher than EC0 by 35.4％ and 34.3％, respectively. Compared with EC0, EC2 and EC1 had more effective panicle numbers by 41.5％ and 21.3％, respectively. Above ground biomass of EC2 and EC1 were higher than EC0 by 47.7％and 25.8％, respectively. The leaf area of EC0 was lower than EC1 and EC2 by 7.1％and 21.4％, and shoot dry weight was lower than EC1 and EC2 by 30.6％and 59.8％, respectively at heading stage. The tiller numbers of EC2 and EC1 were significantly higher than EC0 after transplanting for 40 days (P<0.05). As well as SPAD values in EC0 was significantly lower than those in EC2 and EC1 at panicle initiation stage and milk-rape stage (P<0.05). However, there were no significant effect on nitrogen absorption from chemical fertilizer in rice growth period (P>0.05). The study in-dicated that applying appropriate amount of earthworm casts could increase the panicle rate, leaf area, SPAD value and shoot dry weight of rice which finally enhance the grain yield.关键词
蚯蚓粪便/水稻/生长特性/产量Key words
earthworm casts/rice/growth/yield分类
农业科技引用本文复制引用
赵春容,陈佳娜,方升亮,邹应斌,单双吕,王玉梅,罗凯,周雪峰,黄敏,张恒栋,范龙,曹放波..不同氮肥水平下蚯蚓粪施用对水稻生长特性及产量的影响[J].中国稻米,2017,23(4):67-70,4.
