| 施肥对黑麦草产量和氮磷钾养分吸收的影响 |
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| 引用本文： | 李小坤,李文西,鲁剑巍,黄元仿,刘光文. 施肥对黑麦草产量和氮磷钾养分吸收的影响[J]. 勤云标准版测试, 2006, 0(7) |
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| 作者姓名： | 李小坤 李文西 鲁剑巍 黄元仿 刘光文 |
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| 作者单位： | 华中农业大学资源与环境学院 湖北武汉430070(李小坤，李文西，鲁剑巍)，中国农业大学资源与环境学院 北京100094(黄元仿)，湖北省武穴市土壤肥料工作站 湖北武穴436400(刘光文) |
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| 基金项目： | 中国-加拿大合作项目;华中农业大学校科研和教改项目 |
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| 摘 要： | 在田间试验的条件下研究了配方施肥对黑麦草产量和氮磷钾养分吸收的影响。结果表明:施肥能显著提高黑麦草产量,肥料配方1(每公顷施N450kg、P2O545kg、K2O90kg)和配方2(每公顷施N540kg、P2O5180kg、K2O360kg)鲜草产量分别是不施肥处理(26.78t/hm2)的3.7倍和4.1倍。配方施肥能显著提高黑麦草对氮、磷、钾养分的吸收,配方1对氮、磷、钾的吸收量分别是不施肥处理的5.2倍、2.0倍、3.3倍,配方2分别是不施肥处理的5.8倍、2.5倍、4.0倍。在施肥状况下,黑麦草对养分的吸收比例为N:P2O5:K2O=1:0.25～0.28:1.01～1.08。
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| 关 键 词： | 施肥 黑麦草 产量 氮磷钾 养分吸收 |
Effect of Fertilization on the Yield and N, P, K Nutrient Absorption of Ryegrass |
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| Li Xiaokun,Li Wenxi,Lu Jianwei,Huang Yuanfang,Liu Guangwen. Effect of Fertilization on the Yield and N, P, K Nutrient Absorption of Ryegrass[J]. , 2006, 0(7) |
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| Authors: | Li Xiaokun Li Wenxi Lu Jianwei Huang Yuanfang Liu Guangwen |
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| Affiliation: | 1.College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070; 2.College of Resources and Environment, China Agricultural University, Beijing 100094; 3.Wuxue Soil and Fertilizer Station of Hubei, Wuxue 436400 |
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| Abstract: | A field trial was carried out to study the effect of fertilization on ryegrass yield and N, P, and K nutrient absorption. It was showed that fertilization can increase the yield of ryegrass significantly. Forage yields in treatment 2 with N 450 kg/hm2, P2O5 45 kg/hm2 and K2O 90 kg/hm2 and in treatment 3 with N 540 kg/hm2, P2O 180 kg/hm2 and K2O 360 kg/hm2 were as 3.7 and 4.1 times respectively as that of control treatment (without fertilization, fresh forage yield was 26.78 t/hm2). Fertilization increased the absorption of ryegrass to N, P and K significantly. The amount of N, P and K absorption of treatment 2 was as 5.2, 2.0 and 3.3 times as that of control, and treatment 3 was as 5.8, 2.5 and 4.0 times as that of control respectively. In fertilization condition, ryegrass absorbed N: P2O5: K2O ratio was 1: 0.25~0.28: 1.01~1.08 . |
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| Keywords: | Fertilization Ryegrass Yield NPK Nutrient absorption |
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