Evaluation and analysis of production performance and feed quality of different sweet sorghum and silage corn varieties
This study aimed to screen excellent feed crops and feed varieties planted in the Hexi region of Gansu Province.Selected 4 sweet sorghum varieties and 4 corn varieties respectively,measured biological characteristics,biological yield,agronomic traits,nutritional composition,etc.,evaluate and analyze production performance and feeding value.The results showed that in sweet sorghum,the hay yield of Ketian 9 was the highest,at 38243.42 kg/hm2,which was significantly higher than other sweet sorghum varieties;The highest hay yield of silage maize Wuke silage 101 was 32266.21 kg/hm2,which was not significantly different from the hay yield of Mulberry Grass silage 1 and was significantly higher than the other two sweet sorghum varieties.According to the grading standards for coarse feed by Zhang Jiyi and others,the RFV values of all 8 tested forage plants,except for sweet sorghum Hercules,were greater than 100,indicating that all tested varieties,except for sweet sorghum Hercules,had higher feed quality.The two varieties with the highest RFV value of sweet sorghum are Jitian 2 and Liaotian 7,with values of 146.67 and 138.58,respectively,which were significantly higher than Hercules and significantly higher than Ketian 9.The RFV value of silage maize Jixiang 1 was the highest at 180.53,followed by Wuke silage 101 at 156.13.Sweet sorghum Jitian 2 had the highest RFQ value at 170.09,followed by Liaotian 7 at 164.15.The RFQ value of silage corn Wuke silage 101 was the highest,at 186.66,but there was no significant difference compared to Jixiang 1,and there was a very significant difference compared to the other two silage corn varieties.The tested varieties were comprehensively evaluated using a membership function.The ranking of silage corn was higher than that of sweet sorghum,and the two highest ranked varieties were Wuke silage 101 and Jixiang 1.Based on yield performance,the most suitable variety for promotion in the Hexi region of Gansu was Wuke silage 101.
万方数据
维普
