盐碱土壤施用不同生物有机肥对大麦生长和产量的影响

摘要

A field experiment was conducted to assess the effects of three microbial organic fertilizers on the growth and yield of the bar-ley variety 'Flower 22.As a result,compared with the conventional fertilizer application method adopted by local farmers (regularly ap-plying N-fertilizers,but without applying organic fertilizers),application of each of the three tested microbial organic fertilizers in-creased tiller number,the number of productive panicles,and 1000 -grain weight of barley;but decreased barley spike number,ear length,and plant height.Relative to regular application of N-fertilizers alone,combining them with humic acid fertilizer increased bar-ley yield by 8.54%.In two treatments,N-fertilizers (applied at a rate 10% lower than the recommended rate)were combined with humic acid fertilizer or wormcast organic fertilizer,leading to increases in barley yield by 0.22%and 1 .43%,respectively.Hence,it is feasible to reduce application rate of chemical fertilizers by combining them with microbial organic fertilizers.%在大田条件下，以大麦花22为试材，研究不同有机肥品种对大麦生长、茎蘖动态、成熟性状及产量的影响。结果表明：与当地习惯施肥（不施有机肥，常规施氮）相比，3种配施生物有机肥（联业生物肥、通微腐殖酸肥、温兴蚯蚓肥）处理，大麦分蘖数、有效穗数、千粒质量等均明显提高，而每穗粒数、穗长、株高等有所降低。腐植酸肥与常规施氮组合处理下的大麦产量最高，比仅常规施氮处理的增产8.54％。减氮10％并配施生物有机肥（腐殖酸肥或蚯蚓肥）处理的分别比常规施氮处理的增产0.22％和1.43％。本结果说明生物有机肥的施用有利于促进氮肥的减量化使用。