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为了研究相同种植条件下不同品种青贮玉米的生物产量和品质,以种植面积较大的青贮67、中原单32、新饲玉12等6个品种为试验材料,在大田条件下测定了其在相同种植和管理条件下的生育期、主要田间农艺性状、生物产量和青贮料品质等综合性状。结果表明:在相同种植条件下,中原单32、中北410的生育期最短,均为97 d;新饲玉17的生育期最长,为113 d。中原单32的产量最低,为59 169.75 kg/hm2;新饲玉12的产量最高,为106 878.89 kg/hm2。新饲玉12粗灰分含量最高(为8.0%),粗蛋白也最高(为29.0%),且钙、磷含量较高。ND4酸性洗涤纤维含量最低,为25.0%。几个品种的粗脂肪含量在2.0%～5.0%之间,其中新饲玉17含量最高,为5.0%;青贮67含量最低,为2.0%。几个品种的粗蛋白含量在7.51%～8.34%之间,其中新饲玉12、中北410含量最高,均为8.34%;ND4最低,为7.51%。说明新饲玉12生物产量较高,品质好。
In order to study the biological yield and quality of different types of silage maize under the same planting conditions, six varieties of silage 67, Zhongyuan 32 and Xinjiaoyu 12 with larger planting area were used as materials to test their biological activity in the same Planting and management conditions of the growth period, the main field agronomic traits, biological yield and silage quality and other comprehensive traits. The results showed that under the same planting conditions, the shortest growth period was 97 days in Zhongyuan 32 and Zhongbei 410, and the longest growing period was 113 days in Xinjiaoyu 17. Zhongyuan 32 had the lowest yield of 59 169.75 kg / hm2, while Xinjyu 12 had the highest yield of 106 878.89 kg / hm2. Fresh feed jade 12 highest ash content (8.0%), crude protein is also the highest (29.0%), and calcium, phosphorus content higher. ND4 acid detergent fiber content is the lowest, 25.0%. The crude fat content of several cultivars ranged from 2.0% to 5.0%, of which the highest content of new feed jade 17 was 5.0% and the lowest content of silage 67 was 2.0%. The crude protein content of several cultivars ranged from 7.51% to 8.34%, of which the content of Neojiaoyu 12 and Zhongbei 410 was the highest, both of which were 8.34% and ND4 was 7.51%. Description New feed jade 12 higher biological yield, good quality.