The Effects of Nitrogen Fertilizer and Phosphate Fertilizer Rates on the Yield, Nutrient uptake and Quality of Leymus Chinensis

doi:10.11733/j.issn.1007-0435.2014.06.013

Acta Agrestia Sinica ›› 2014, Vol. 22 ›› Issue (6): 1232-1238.DOI: 10.11733/j.issn.1007-0435.2014.06.013

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The Effects of Nitrogen Fertilizer and Phosphate Fertilizer Rates on the Yield, Nutrient uptake and Quality of Leymus Chinensis

DONG Xiao-bing¹, HAO Ming-de², GUO Sheng-an³, SHI Xue-jun⁴, MA Tian⁵, LIU Gong-she⁵

1. The Resources and Environment College of Northwest A&F University, Yangling, Shaanxi Province 712100, China;
2. Institute of Soil and Water Conservation of Northwest A&F University, Yangling, Shaanxi Province 712100, China;
3. Ningxia Yanchi County Agricultural Comprehensive Development Office, Yanchi, Ningxia 751500, China;
4. The Yanchi County Green Alfalfa Industry Development Co., Ltd. Yanchi, Ningxia 751500, China;
5. Key Laboratory of Insititute of Botany, Chinese Academy of Scinces, Beijing 100093, China

Received:2014-01-08 Revised:2014-02-21 Online:2014-12-15 Published:2014-12-01

氮磷肥配施对羊草干草产量、养分吸收及品质影响

董晓兵¹, 郝明德², 郭胜安³, 石学军⁴, 马甜⁵, 刘公社⁵

1. 西北农林科技大学资源环境学院, 陕西杨凌 712100;
2. 西北农林科技大学水土保持研究所, 陕西杨凌 712100;
3. 宁夏盐池县农业综合开发办公室, 宁夏盐池 751500;
4. 盐池县绿海苜蓿产业发展有限公司, 宁夏盐池 751500;
5. 中国科学院北方资源植物重点实验室, 北京 100093

通讯作者: 郝明德, 刘公社
作者简介:董晓兵(1986-),男,河南平顶山人,硕士,主要从事羊草水肥调控研究,E-mail:xiaobingdong1022@163.com
基金资助:
宁夏农业综合开发土地治理科技推广项目(NTKJ-2013-03(1));国家科技支撑计划重大项目(2011BAD31B01);国家重大基础研究“973”项目(2014CB138704)资助

Abstract

Abstract:

The effects of combined application of nitrogen and phosphorus fertilizer on the quality, grass yield and nutrient uptake of Leymus chinensis were analyzed at the west beach of Yanchi county in Ningxia. The results showed that the grass yield of Leymus chines ‘Zhongke No.2’ fertilized 120 kg·hm^-2 N with the base fertilizer of 120 kg·hm^-2P₂O₅ increased 1.5 times compared to control. The grass yield of Leymus chines ‘Zhongke No.2’ significantly increased after fertilizing more nitrogen (P<0.05). The uptake of nitrogen, phosphorus and potassium firstly increased and then decreased with the increases of nitrogen and phosphate. Rational fertilization could effectively increase the crude protein content of Leymus chinensis, and lower the content of nitrogen-free extractum. The quality of Leymus chinensis was the best after fertilizing 90 kg·hm^-2 N with the base fertilizer of 120 kg·hm^-2 P₂O₅ and the economic efficiency increased 1.48 times. Therefore, the combined application of 90 kg·hm^-2 N with the base fertilizer of 120 kg·hm^-2 P₂O₅ was recommended to be applied in the same region.

Key words: Leymus chinensis, Fertilization, Grass yield, Quality, Economic benefit

摘要：

以中科2号羊草(Leymus chinensis ‘Zhongke No.2’)为材料,系统分析了氮磷肥配施对干草产量、品质及养分吸收的影响.结果表明:增施氮肥羊草产草量显著增加(P<0.05),以120 kg·hm^-2 P₂O₅为肥底、施用120 kg·hm^-2 N时产草量最高,较对照增产1.5倍;氮、磷、钾吸收量随氮磷肥施用量的增加均呈现先增加后减少趋势,适当增施磷肥促进氮素的吸收,增施氮肥促进磷素的吸收,钾吸收量对氮肥响应显著;氮磷肥合理配施有效增加羊草粗蛋白含量,降低粗纤维和无氮浸出物含量,以120 kg·hm^-2 P₂O₅为肥底、施用90 kg·hm^-2 N时羊草品质最优,且经济效益较对照增收1.48倍,建议同类地区推广施用.

关键词: 羊草, 施肥, 产草量, 品质, 经济效益

CLC Number:

S147.22

DONG Xiao-bing, HAO Ming-de, GUO Sheng-an, SHI Xue-jun, MA Tian, LIU Gong-she. The Effects of Nitrogen Fertilizer and Phosphate Fertilizer Rates on the Yield, Nutrient uptake and Quality of Leymus Chinensis[J]. Acta Agrestia Sinica, 2014, 22(6): 1232-1238.

董晓兵, 郝明德, 郭胜安, 石学军, 马甜, 刘公社. 氮磷肥配施对羊草干草产量、养分吸收及品质影响[J]. 草地学报, 2014, 22(6): 1232-1238.

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The Effects of Nitrogen Fertilizer and Phosphate Fertilizer Rates on the Yield, Nutrient uptake and Quality of Leymus Chinensis

氮磷肥配施对羊草干草产量、养分吸收及品质影响

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