| Effect of nitrogen fertilizer and harvest stage on yield and quality of forage green naked oat |
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| DOI：10.7606/j.issn.1000-7601.2006.04.03 |
| Key Words: forage green naked oat nitrogen fertilizer harvest stage yield quality |
| Author Name | Affiliation | | LU Ai-zhi | Department of Agronormy Hebei Northern University,Zhangjiakou,Hebei 075131,China | | NIU Rui-ming | Department of Agronormy Hebei Northern University,Zhangjiakou,Hebei 075131,China | | QIAO Yong-ming | Department of Agronormy Hebei Northern University,Zhangjiakou,Hebei 075131,China | | WU Wen-rong | Department of Agronormy Hebei Northern University,Zhangjiakou,Hebei 075131,China | | YAN Gui-long | Department of Agronormy Hebei Northern University,Zhangjiakou,Hebei 075131,China |
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| Abstract: |
| The effect of different nitrogen applied amounts and harvest stages on yield and quality of forage green naked oat were studied.The results showed that nitrogen fertilizer could increase the yield and protein contents in the straw of oat.When the amount of nitrogen application was 69 kg/hm2,the dry weight of forage green naked oat in sandy soil were 6 023.4 kg/hm2,being higher than CK;and the yield in medium loam meadow soil was the highest,being 9 013.4 kg/hm2.Under the treatment of 69 kg/hm2 nitrogen,the crude protein contents and true protein contents in the straw were 12.09% and 7.45% respectively,being 6.81% and 3.61% more than CK respectively.The yield of forage green naked oat was the highest when harvested at early milk stage.The dry weight of Pin16 and 9348 was 10 916.7 kg/hm2 and 10 700.0 kg/hm2 respectively.The transformation rate from crude protein to true protein was the highest when forage green naked oat was harvested at early milk stage. |
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