氮磷钾肥对青贮玉米产量和品质的影响

高文俊,杨国义,高新中,玉柱,许庆方,原向阳,孙耀武

The Effects of Nitrogen, Phosphorus, or Potassium Fertilizer on the Yield and Silage Quality of Maize

Wenjun Gao,Guoyi Yang,Xinzhong Gao,Zhu Yu,Qingfang Xu,Xiangyang Yuan,Yaowu Sun

表3 不同施肥处理玉米青贮饲料的营养成分

Table 3 The nutritive composition of silage maize under different treatments %

项目Item CK N P K 干物质保存率Dry matter preserved rate 96.07±0.98a 95.39±1.33a 96.12±1.24a 95.54±1.12a 干物质Dry matter 30.21±1.08a 30.32±1.19a 30.41±1.21a 29.87±1.16a 粗蛋白Crude protein 8.42±0.53a 8.78±0.63a 8.39±0.44a 8.41±0.43a 中性洗涤纤维Neutral detergent fiber 48.64±1.11a 47.05±1.12a 49.07±1.61a 47.73±1.38a 酸性洗涤纤维Acid detergent fiber 24.28±1.47a 23.49±1.33a 24.88±1.63a 24.69±1.58a 粗灰分Crude ash 4.34±0.52a 4.23±0.47a 4.29±0.39a 4.41±0.17a