Evaluation of production performance and nutritional value of 12 silage maize varieties in Bijie region
The purpose of this study was to screen out high-quality and high-yield silage maize varieties suitable for planting in Bi-jie,12 silage maize varieties were used as materials in this study.The agronomic traits,yield and nutrient content of different varieties were measured and analyzed,and the membership function method was used for comprehensive analysis and evaluation.The results showed that in terms of biological yield,'Quchen 512','Jinling silage 97','Jingke silage 932'and'Guiqing silage 5'had excellent perform-ance,which were significantly higher than other varieties.In terms of main nutritional quality and relative feeding value,the crude protein content was more than 7%except for'Dajingjiu 4059','Heyu 36','Heyu 9566'and'Dika 159'.The NDF and ADF contents of'Dajingjiu 4059','Heyu 36','Heyu 9566'and'Dika 159'all met the national first-level standards.The starch content of all varie-ties except'Dajingjiu 4059','Heyu 36','Heyu 9566'and'Dika 159'could meet the national first-class standard.The variety with the highest relative feeding value was'Dika 159'.screen out high-quality and high-yield silage maize varieties suitable for planting in southwest China(Bijie,Guizhou),12 silage maize varieties were used as materials in this study.The agronomic traits,yield and nutrient content of different varieties were measured and analyzed,and the membership function method was used for comprehensive analysis and e-valuation.The results showed that in terms of biological yield,'Quchen 512','Jinling silage 97','Jingke silage 932'and'Guiqing si-lage 5'had excellent performance,which were significantly higher than other varieties.In terms of main nutritional quality and relative feeding value,the crude protein content was more than 7%except for'Dajingjiu 4059','Heyu 36','Heyu 9566'and'Dika 159'.The NDF and ADF contents of'Dajingjiu 4059','Heyu 36','Heyu 9566'and'Dika 159'all met the national first-level standards.The starch content of all varieties except'Dajingjiu 4059','Heyu 36','Heyu 9566'and'Dika 159'could meet the national first-class standard.The variety with the highest relative feeding value was'Dika 159'.The comprehensive evaluation showed that under the conditions of this experiment,the varieties with high comprehensive production performance of silage were'Quchen 512','Jinling silage 97','Jingke silage 932'and'Guiqing silage 5',which could be widely planted as whole-plant silage maize varieties in Bijie area.
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