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首页|期刊导航|畜牧与饲料科学|黄河银川段滩地11种牧草的营养价值、生产性能分析及土壤改良效果评价

黄河银川段滩地11种牧草的营养价值、生产性能分析及土壤改良效果评价OACSTPCD

Analysis of Nutritional Value and Production Performance and Evaluation on Soil Improvement Effects of 11 Varieties of Forage Grasses on Floodplain in the Yinchuan Section of the Yellow River

中文摘要英文摘要

[目的]明晰不同品种牧草在宁夏回族自治区黄河银川段滩地种植的营养价值、生产性能及对土壤的改良效果.[方法]选取 11 个牧草品种,测定并比较不同品种牧草的营养品质和生产性能指标以及种植不同品种牧草地块的土壤养分指标,分析牧草营养品质、生产性能以及牧草种植地块土壤养分指标之间的相关性.[结果]①11 种牧草的营养品质指标差异较大,粗蛋白、粗脂肪、粗灰分含量最高的品种分别是中苜 4 号、无芒雀麦、苇状羊茅;粗纤维、NDF、ADF含量最低的品种分别是苇状羊茅、中苜3 号、苇状羊茅;总碳、总氮含量最高的品种分别是披碱草和中苜 4 号;钙、磷含量最高的品种分别是瑞得和苇状羊茅.②与种植前相比,种植 11 种牧草地块土壤的pH值和全盐含量均显著(P<0.05)降低;除种植部分品种牧草地块的全磷和速效磷含量外,种植牧草地块土壤的多数养分指标均显著(P<0.05)提高.土壤全氮、有机质、碱解氮含量较高的是种植羊草和蒙古冰草的地块;土壤速效磷和速效钾含量最高的均是种植羊草的地块;土壤全磷含量最高的是种植蒙古冰草的地块.③除披碱草株高较低外,其余 10 种牧草株高差异较小(P>0.05);产量较高的牧草品种有高冰草、蒙古冰草、中苜 4 号、中苜 3号.④相关性分析表明,牧草产量与营养品质及种植地块土壤养分的部分指标间存在不同程度的正相关或负相关;主成分分析表明,11 种牧草的综合评价排序为羊草>蒙古冰草>无芒雀麦>碱茅>高冰草>中苜 4 号>披碱草>苇状羊茅>骑士 2 号>中苜 3 号>瑞得.[结论]在黄河银川段滩地综合性状表现较好的 5 个牧草品种是羊草、蒙古冰草、无芒雀麦、碱茅、高冰草,这些品种有潜力作为当地主推牧草品种并用于黄河滩地的土壤改良.

[Objective]This study was conducted to characterize the nutritional value,production performance and soil improvement effects of different varieties of forage grasses planted on floodplain in the Yinchuan section of the Yellow River in Ningxia Hui Autonomous Region.[Method]A total of 11 varieties of forage grasses were included in this study.The nutritional quality and production performance indexes of the forage grasses,as well as the soil nutrient indexes of the forage grass planting plots were determined and statistically compared.In addition,the correlation among these indexes were assessed.[Result]①There were obvious variations in nutritional quality indexes among the 11 varieties of forage grasses.Zhongmu No.4,Bromus inermis and Festuca arundinacea had the highest contents of crude protein,crude fat and crude ash,respectively.Festuca arundinacea exhibited the lowest contents of crude fiber and ADF,and Zhongmu No.3 exhibited the lowest NDF content.The highest contents of total carbon and total nitrogen were observed in Elymus dahuricus and Zhongmu No.4,respectively,while those of calcium and phosphorus were observed in Ruide and Festuca arundinacea,respectively.②The plots planted with the 11 varieties of forage grasses had significantly(P<0.05)decreased soil pH value and total salt content compared with those before planting.Except for the soil contents of total phosphorus and available phosphorus in selected forage grass planting plots,most soil nutrient indexes in the forage grass planting plots significantly(P<0.05)increased.The plots planted with Leymus chinensis or Agropyron mongolicum Keng had higher soil contents of total nitrogen,organic matter and alkaline hydrolysis nitrogen.The Leymus chinensis planting plot had the highest soil contents of available phosphorus and available potassium.The highest soil content of total phosphorus was observed in the Agropyron mongolicum Keng planting plot.③Except for Elymus dahuricus with a lower plant height,there were no significant(P>0.05)differences in plant height among the other 10 varieties of forage grasses.Elytrigia elongata,Agropyron mongolicum Keng,Zhongmu No.4 and Zhongmu No.3 had higher grass yield.④ Correlation analysis demonstrated that grass yield had varying degrees of positive or negative correlation with some indexes of nutritional quality of forage grasses and some soil nutrient indexes of the forage grass planting plots.Principal component analysis showed that the comprehensive evaluation ranking of the 11 varieties of forage grasses was as follows:Leymus chinensis>Agropyron mongolicum Keng>Bromus inermis>Puccinellia distans>Elytrigia elongata>Zhongmu No.4>Elymus dahuricus>Festuca arundinacea>Qishi No.2>Zhongmu No.3>Ruide.[Conclusion]Leymus chinensis,Agropyron mongolicum Keng,Bromus inermis,Puccinellia distans and Elytrigia elongata had better comprehensive performance when planting on floodplain in the Yinchuan section of the Yellow River,and had the potential to be the mainly promoted varieties of forage grasses and used for soil improvement in the Yellow River floodplain.

王巧玲;吴颖;王占军;柳超超;王学彬;沈娟;田英

宁夏农林科学院林业与草地生态研究所,宁夏 银川 750002||宁夏防沙治沙与水土保持重点实验室,宁夏 银川 750002宁夏绿创林业有限公司,宁夏 银川 750000

农业科学

黄河滩地牧草营养品质土壤养分

the Yellow River floodplainforage grassnutritional qualitysoil nutrient

《畜牧与饲料科学》 2024 (004)

68-77 / 10

宁夏青年拔尖人才培养工程(2018-TY);国家牧草产业技术体系(CARS-34-41);企业创新中心项目"黄河银川段滩地生态草引选及生态修复关键技术研究"(NXLC-2-2022-14).

10.12160/j.issn.1672-5190.2024.04.009

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