摘要
采用土培试验,研究了纳米剂包膜氮肥对早稻生长、产量和养分吸收的影响。结果表明:施用纳米膨润土和纳米活性炭包膜氮肥可提高早稻产量,增加氮磷钾养分吸收量,促进氮磷钾向籽粒的转运,但对早稻叶片叶绿素的含量及早稻干重的影响不明显。2种纳米剂处理中,以常规氮肥量基础上减氮20%添加20%膨润土处理的效果最好,与施用等氮量的未加纳米剂处理的相比,早稻产量增加35.2%,籽粒对氮肥的吸收量增加42.0%。
The effects of nano-preparation coated nitrogen fertilizer on growth,yield and nutrients absorption of early-rice were studied by using soil pot experiment.The results showed that applying nano-bentonite and nano-active carbon coated nitrogen fertilizer can increase yield and nutrients（N,P,K） absorption amount of early rice and promoting transportation of nutrients（N,P,K） to seeds,but the effects on leaf chlorophyll content and dry weight of early rice were not significant.Between two treatments with two different nano-preparations,the effect of treatment that adding 20% of bentonite to nitrogen fertilizer that reducing 20% of conventional nitrogen fertilizer rate was the best,which in comparison with the treatment that had the same nitrogen fertilizer rate with non-adding nano-preparation,the yield of early rice and nitrogen absorption amount of early rice seeds increased by 35.2% and 42.0%,respectively.
出处
《湖南农业科学》
2011年第6期66-68,共3页
Hunan Agricultural Sciences
基金
国家863项目(2007AA021906)
国家科技支撑计划项目(2007BAD87B11
2008BADA7B07)
关键词
纳米剂
早稻
产量
养分吸收
nano-preparation
early-rice
yield
nutrients absorption
