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为了研究发酵牛粪有机肥对象草生物产量的影响,试验对施用发酵牛粪有机肥和未发酵牛粪的桂闽引象草和王草的株高、分蘖、产量、叶茎比进行比较分析。结果表明:在相同的种植方法和管理水平下,与施用未发酵牛粪相比,施用发酵牛粪有机肥后,桂闽引象草和王草生长速度加快,平均全年株高达(225.64±4.91)cm和(205.13±7.96)cm;桂闽引象草鲜草产量达(197.39±3.22)t/hm2,王草鲜草产量达到(186.81±3.56)t/hm2,干物质产量均显著提高(P<0.05)。说明牛粪通过发酵后肥力明显增加,是种植牧草等作物的优质生物有机肥。
In order to study the effects of organic manure fermented cow dung on the grass biomass production, the plant height, tiller, yield, leaf-stem ratio of Guidong weeds and king grasses fed with fermented cow dung organic manure and unfermented cow dung were comparatively analyzed . The results showed that under the same planting method and management level, the growth rate of Guidao grass and kinggrass accelerated with the application of fermented cow dung manure compared with unfermented cow dung. The mean annual plant height reached 225.64 ± 4.91) cm and (205.13 ± 7.96) cm respectively. The yield of fresh grass of Guimu was up to (197.39 ± 3.22) t / hm2, and the yield of fresh grass was up to (186.81 ± 3.56) (P <0.05). This shows that the manure fertilizers significantly increased after fermentation and is a good bio-organic fertilizer for planting grasses and other crops.