Effects of different cultivation measures on the quality and in vitro digestibility of whole-plant corn silage
The present study aims to investigate the effects of two fertilization treatments[no organic fertilizer(S1),and organicfertilizer(S2)],two planting densities[6.72 × 104plant·ha-1(Z1),and 8.25 × 104 plant·ha-2(Z2)],and two mixed planting methods[mixed four varieties(H1),and mixed six varieties(H2)]on the quality,in vitro digestibility and aerobic stability of whole-plant corn silage.The experiment was designed with a three-factor randomized block design with 8 treatments and 3 replicates.The corn was harvested at the waxy ripening stage and ensiled 200 days before sampling and analysis.The results showed that the content of the lactic acid,acetic acid,crude protein,water-soluble carbohydrates,and starch in the S2Z1H2 was significantly higher than those in other treatment groups(P＜0.05).In comparison,the neutral detergent fiber content in the S2Z1H2 was significantly lower than that in other treatment groups(P＜0.05).Moreover,the in vitro digestibility and aerobic stability in S2Z1H2 were also significantly better compared to those in other treatment groups(P＜0.05).Overall,"application of organic fertilizer+6.72 × 104 plants·ha-1+intercropping with six varieties"was found as a suitable cultivation measure in Tongliao City,Inner Mongolia Autonomous Region,showing better effects on corn silage.
万方数据
维普
