中国稻米2017，Vol.23Issue(4)：107-110,114,5.DOI:10.3969/j.issn.1006-8082.2017.04.021
生物炭施用对早稻产量形成的影响
Effects of Biochar Addition on Yield Formation in Early Rice
摘要
Abstract
In order to clear the effects of biochar addition on yield formation in early rice, a field experiment was conducted withZhongzao 39 as material in early season in 2015 and 2016. The grain yield, yield components, dry matter production and harvest in-dex were compared between with biochar(C1, 20 t/hm2) and without biochar addition(C0, 0 t/hm2)under three nitrogen levels(N0, 0 kg N/hm2; N1, 90 kg N/hm2; N2, 150 kg N/hm2). The results showed that C1 treatment produced lower grain yield than did C0 treat-ment except N1 level in 2015. The average grain yield under C1 treatment was 12.85％ lower than that of C0 treatment in 2016. C1 treatment had lower 1000-grain weight than C0 treatment by 2.46％～4.12％ and 2.55％～3.76％ in 2015 and 2016, respectively. C1 treatment had higher dry matter production after heading than C0 treatment, while harvest index was lower in C1 treatment than in C0 treatment. The maximum difference in harvest index between C1 treatment and C0 treatment was 5.33 percentage and 4.00 percentage in 2015 and 2016, respectively. These results indicated that biochar addition could decrease 1000 grain weight and harvest index, and consequently reduce the grain yield of early rice.关键词
生物炭/早稻/产量/粒重/收获指数Key words
biochar/early rice/grain yield/grain weight/harvest index分类
农业科技引用本文复制引用
范龙,单双吕,张恒栋,陈佳娜,赵春容,曹放波,王玉梅,黄敏,邹应斌..生物炭施用对早稻产量形成的影响[J].中国稻米,2017,23(4):107-110,114,5.基金项目
国家自然科学基金地方科学基金项目(31460332) （31460332）
