不同混播草地建植第三年产量与质量的评价

【目的】以建植第三年的多年生豆禾混播草地为对象,研究与评价草地产量与质量的表现。【方法】以红豆草(Onobrychis viciaefolia)、紫花苜蓿(Medicago sativa)、红三叶(Trifolium pratense)、鸭茅(Dactylisglomerata)、无芒雀麦(Bromus inermis)和猫尾草(Phleum pratense)6种豆禾牧草在混播种类为3、4、5、6与混播比例为豆禾比5∶5、4∶6和3∶7条件下建立混播草地,对牧草产量、豆科产量比例、茎叶比及粗蛋白、粗脂肪、酸性洗涤纤维和中性洗涤纤维产量等指标进行分析。【结果】不同混播比例下,混5-1中豆禾比3∶7的产草量最高;不同混播比例之间牧草营养品质无显著差异(P>0.05)。不同混播种类下,混5-1与混6混播组合在草产量、粗蛋白和粗脂肪产量方面均表现较好,且与其他处理有显著差异(P<0.05)。混3-2豆科产量比例最高。混3-2与混6茎叶比显著大于其他处理(P<0.05),不含红豆草的处理茎叶比小于含红豆草的处理。【结论】混播种类复杂组合产草量高于混播种类简单组合,而且草地产量与品质均受到混播种类成分的影响。

Evaluation of Forage Yield and Quality of Legume-grass Mixture in the Third Establishing Year

【Objective】This research aimed to study and evaluate the forage yield and quality of legume-grass mixture in the third establishing year in Zhaosu Horse Farm,Ili Prefecture,Xinjiang Uygur Autonomous Region.【Method】Trifolium pratense,Medicago stativa,Onobrychis viciaefolia,Dactylis glomerata.,Bromus inermis,Phleum pretense were studied in the seven legume-grass combinations: mixed 6 species,mixed 5 species-1,mixed 5 species-2,mixed 4 species-1,mixed 4 species-2,mixed 3 species-1,mixed 3 species-2 at three rowing ratios: 5∶ 5,4∶ 6,3∶ 7.The forage yield,the ratios of mixed legume yield,the stem/leaf,the yield of crude protein(CP),ether extract(EE),acid detergent fiber(ADF),neutral detergent fiber(NDF) were analyzed for evaluating the forage yield and quality.【Result】The results showed that the combination of mixed 5 species-1,legume/grass 3∶ 7 had the highest yield.Meanwhile,the quality had no significant difference between different mixed ratios(P>0.05).Under the treatment of different mixed species,the forage yield and the yield of CP,EE showed great performance of the combinations of mixed 5-1 and mixed 6.There was no significant difference between them(P>0.05).There were significant difference between the combinations of mixed 5-1,mixed 6 and other combinations(P<0.05).The legume yield of ratio mixed 3-2 was the highest.There were significant differences between the stem/leaf of the combinations of mixed 3-2,mixed 6 and other combinations(P<0.05).The tem/leaf values of the combinations including O.viciaefolia were higher than the ones not including O.viciaefolia.【Conclusion】The forage yield of complex mixed combinations was higher than the simple mixed ones.And the forage yield and quality were influenced by the mixture species.