摘要
为分析沼液对王草(Pennisetum sinese)生产性能和品质的影响,通过采用单因素设计,对雷州半岛越冬期王草进行处理,即施羊粪沼液(A_1)、施尿素(A_2)和不施肥(CK)。结果表明:1)两次刈割A_1组处理下王草鲜干比分别为3.17和3.84,均显著低于其他处理组(P <0.05),A_2组与CK组的差异不显著(P> 0.05);同期处理下王草A_1组的株高和增长率均显著高于A_2组和CK (P <0.05),A_2与CK差异不显著(P> 0.05);同期处理下各处理间王草的茎叶比差异不显著(P> 0.05);2)同期处理下A1组王草的粗蛋白和粗脂肪显著高于A_2组和CK(P <0.05);A_1组和A_2组的粗纤维、粗灰分和无氮浸出物较CK显著降低(P <0.05),且A_1组与A_2组差异显著(P <0.05)。综上认为:羊粪沼液处理可有效改善越冬期王草的生产性能和品质。
A single factor design was used to treat king grass(Pennisetum sinese) with different fertilizers, sheep manure biogas slurry(A_1), urea(A_2), and no fertilizer(CK), to study the effect of biogas slurry on the production performance and quality of king grass in Leizhou peninsula in winter. The results showed that the fresh/dry ratio of grass in the A_1 and A_2 groups was significantly improved. The fresh/dry ratio of group A_1 was 3.17/3.84, which was significantly lower than that of the other treatments(P < 0.05), but there was no significant difference between the A_2 and CK groups(P > 0.05). The plant height and growth rate of group A_1 were higher than those of the A_2 and CK groups(P < 0.05). The stem/leaf ratio was not significantly different in the A_1, A_2, and CK groups(P > 0.05). The crude protein(CP) and ether extract(EE) of group A_1 were significantly higher than those of the A_2 and CK groups(P < 0.05). The content of crude ash(Ash), crude fibre(CF), and nitrogen free extract(NFE) showed a significantly decreasing trend in the A_1 and A_2 groups compared to that in the control group(P < 0.05). In conclusion, the application of sheep manure biogas slurry can effectively increase the production performance and improve nutrition quality of overwinter king grass.
引文
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