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为了研究牦牛粪便对燕麦(Avena sativa)种子发芽及幼苗生长的影响,试验采用牦牛粪便干物质的浸提液和含有牦牛粪便干物质的沙培基质,分别对燕麦种子的发芽率和幼苗生长情况进行观察、测定。结果表明:不同牦牛粪便干物质浸提液能够促进燕麦种子发芽,当牦牛粪便干物质的量与纯化水的体积比为1∶80时,燕麦种子的发芽率达到最大,且与其他处理差异显著(P<0.05);不同沙培基质对燕麦幼苗高度、地上(下)生物量有一定的促进作用,当细沙与放牧牦牛粪便干物质的量之比为210∶40时,燕麦幼苗高度、地上(下)生物量达到最大,且与其他处理差异显著(P<0.05)。由此可见,在一定范围内牦牛粪便对燕麦种子萌发和幼苗生长有明显的促进作用。
In order to study the effects of yak feces on seed germination and seedling growth of Avena sativa, the experiment used yak feces extract of dry matter and sand culture medium containing yak feces dry matter, respectively, on the germination rate and seedling growth of oat seeds Observed, measured. The results showed that different yak feces extracts could promote the germination of oat seeds. When the volume ratio of dry matter of yak feces and purified water was 1:80, the germination rate of oat seeds reached the maximum, and the difference was significant with other treatments (P <0.05). The different sand culture medium could promote the seedling height and aboveground (lower) biomass of the oats. When the ratio of the amount of dry matter to the excrement in the grazing yak was 210:40, the height, Aboveground (below) biomass reached the maximum, and significant difference with other treatments (P <0.05). Thus, within a certain range of yak manure on oat seed germination and seedling growth significantly promoted.