添加纳米碳缓释肥料对超级杂交稻产量和氮肥利用率的影响

Effects of Adding Nono-carbon in Slow-released Fertilizer on Grain Yield and Nitrogen Use Efficiency of Super Hybrid Rice

在大田条件下,研究了添加纳米碳的缓释肥料对超级杂交中稻Y两优1号的产量、氮肥利用率及田面水总氮含量的影响。结果表明,与不添加纳米碳处理相比,添加纳米碳的金正大缓释尿素和添加纳米碳的史丹利缓释复合肥均能促进水稻分蘖的形成,增加孕穗期叶绿素含量,增加干物质累积量、有效穗、每穗实粒数,从而增加稻谷产量,提高氮肥利用率,并能降低田面水中总氮含量,减少氮肥造成的水环境污染。

The effects by adding nono-carbon in slow-released fertilizers （SRF） were studied on the grain yield, nitrogen use efficiency and total N content in field surface water of Y Liangyou 1, a medium super hybrid rice variety, under field conditions. The results showed that, compared with the treatments without addition of nono-carbon ineluding Kingenta slow-released fertilizer （JSRF） and Shidanli slow-released compound fertilizer （SSRF）, the treatments with addition of nono-carbon （C） including JSRF ＋ C and SSRF ＋ C enhanced tillering, raised the leaf chlorophyll content （SPAD value） at booting stage and increased the dry matter accumulation, productive panicles and filled grains per panicle thus finally increased the grain yield. Furthermore, it was also found that they could raise the nitrogen use efficiency （N-agronomical use efficiency, AE） and decrease the total N content in field surface water, which would alleviate their pollution to the water.