为探讨不同配比的生物质炭基肥料对青稞生长、产量和氮素利用的影响。以牛粪为研究对象,在限氧条件下经高温热解炭化制成生物炭,将生物质炭与一定比例的化学肥料混合,制成生物质炭基肥料。研究表明,随着碳化的进行,牛粪中的全氮和有机质（有机碳）含量降低,材料的碳氮比也随之降低,而全磷、全钾的含量升高;增施牛粪生物炭,青稞叶片中叶绿素含量升高,促进作物对肥料中养分的利用,进而利于青稞生长,草木灰与化肥配施的叶片叶绿素含量最高;不同处理籽粒产量之间的差异达到极显著;化肥施入量减少至70%,牛粪生物炭施入量30%时,籽粒产量最高,达到4830.75 kg/hm²,高于有机肥、草木灰与化肥配施和羊粪的处理（较对照增产13.88%）;22500 kg/hm²羊粪处理的秸秆产量最高;同等氮输入条件下,减少化肥施用量,增加生物炭,可以提高氮素利用效率。

To investigate the effects of biochar-based fertilizers with different proportions on growth, yield and nitrogen utilization of highland barley, we used cow dung as the research object, prepared biochar by pyrolysis and carbonization at high temperature (350-450℃) under oxygen limitation, and mixed biochar with a certain proportion of chemical fertilizer. The study shows that as the carbonization proceeds, the content of total nitrogen and organic matter (organic carbon) in cow dung are decreased, as well as the C/N ratio, but the content of total phosphorus and total potassium are increased. The application increase of cow dung biochar could raise the content of chlorophyll in the leaf of highland barley, promote the crop to utilize the nutrients in fertilizers, which is benefit to the growth of highland barley, the highest chlorophyll content in leaves is observed under the treatment of ash manure combined with chemical fertilizer. The grain yield of different treatments is significantly different. As the application amount of chemical fertilizer is reduced to 70% and the cow dung biochar is 30%, the grain yield is the highest of 4830.75 kg/hm²(13.88% higher than the control). The straw yield is the highest under the treatment of sheep manure of 22500 kg/hm². Under the same nitrogen input condition, the nitrogen utilization efficiency can be improved by reducing chemical fertilizers and increasing cow dung biochar.