To provide scientific basis for Pennisetum giganteum introduction and promotion of large area production in southern Xinjiang.The optimum planting row spacing was determined by single factor orthogonal experiment in field plots.The results showed that:The seedling emergence rate was 60% after planting in southern Xinjiang,and reached 80% after replanting,the average yield of fresh grass was 75.915 t/hm2,the planting effect of 60 cm×60 cm plant spacing treatment is the best,and the economic benefit can be maximized.In this experiment,the planting cost of macrophyta was 107.33 yuan/hm2,which was higher than that of silage corn and alfalfa.According to the comprehensive analysis of the nutritional test results,the nutritional value of Pennisetum giganteum at 115 d is slightly better than that at 50 d,and its silage quality is slightly lower than that of whole corn silage.Pennisetum giganteum can be used for green feeding or silage,According to the biological characteristics of Pennisetum giganteum in different regions and different climatic environments,its positioning in agriculture and animal husbandry production and environmental protection in Xinjiang should be identified,and its rational development and utilization should be carried out.
维普
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