| 堆放时间对氨化麦秸含氮量的影响 |
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| 引用本文： | 陈明宇,曹志东.堆放时间对氨化麦秸含氮量的影响[J].甘肃农业大学学报,1999,34(2):134-136. |
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| 作者姓名： | 陈明宇 曹志东 |
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| 作者单位： | 甘肃省定两地区种草养畜服务中心 |
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| 基金项目： | 临洮县青贮氨化示范建设项目 |
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| 摘 要： | 按照麦秸∶水∶尿素比例100∶30∶4制作的氨化饲料，用凯氏定氮法测定含氮量。Ⅰ、Ⅱ号料含氮量分别为1．1317％、1．3718％，比麦草提高161．91％、217．55％。两种料经过1～130d室内堆放，分4个阶段测定，Ⅰ号料1～40d全氮损失9．89％，占全期全氮损失15．81％的62．6％；Ⅱ号料41～60d全氮损失8．13％，20d占全期全氮损失2985％的26．35％，均属损失高峰期。结果表明，氨化料应密封保存；麦秸粉碎比铡草制作的氨化料提高含氮量21.22％。
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| 关 键 词： | 氨化饲料 堆放 含氮量 测定 |
Effect of Storage Time on Nitrogen Content of A mmoniated Wheat Straw Determining the Relationship Between Nitrogen Content of Ammoniated Wheat Straw and Stored Time Indoor |
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| Chen Mingyu, Cao Zhidong ,Chen Xuetong.Effect of Storage Time on Nitrogen Content of A mmoniated Wheat Straw Determining the Relationship Between Nitrogen Content of Ammoniated Wheat Straw and Stored Time Indoor[J].Journal of Gansu Agricultural University,1999,34(2):134-136. |
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| Authors: | Chen Mingyu Cao Zhidong Chen Xuetong |
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| Abstract: | The wheat straw was treated as chopped group (size 2.0 cm, group 1) and cracked group (size 0.5 cm, group2) and ammoniated with urea solution (the ratio of wheat straw:water: urea was 100:30:4, w/w). The nitrogen content (NC) of two groups were determined with Kjeldahl's method, the results indicated that the NC of two groups were 1. 1317 % and 1 .37.18 %,161 .91 % and 217.55 % higher than control group respectively. The total nitrogen losses of two groups were 15.81 % and 29.85 % after 130 day's storage in which, the peak of nitrogen loss occurred from day 1 to day 40 for group 1 (9.89 %) and from day 41 to day 60 for group 2(8. 13 %). It was concluded that the ammoniated wheat straw should be stored airtight, and the NC of group 1 was increased by 21.22 % compared with group 2. |
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| Keywords: | ammoniated wheat straw storage nitrogen content determining |
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