墨西哥玉米留茬中糖组分含量对氮素的响应

草业学报 ›› 2009, Vol. 18 ›› Issue (1): 184-187.

墨西哥玉米留茬中糖组分含量对氮素的响应

张晓艳^1,2,刘锋¹,王风云¹,董树亭^2*

1.山东省农业科学院科技信息工程技术研究中心,山东济南250100;
2.作物生物学
国家重点实验室山东农业大学农学院,山东泰安271018

收稿日期:2008-01-08 出版日期:2009-01-25 发布日期:2009-02-20
作者简介:张晓艳(1974-),女,内蒙古通辽人,博士。E-mail: zxylf5367@163.com
基金资助:
国家“十五”科技攻关项目(2002BA518A13)资助。

Effects of nitrogenous fertilizer strategies on sugar components in the stubbles of Zea mexicana

ZHANG Xiao-yan^1,2, LIU Feng¹, WANG Feng-yun¹, DONG Shu-ting²

1.S&T Information Engineering Research Center of Shandong Academy of Agricultural Science, Ji’nan 250100, China;
2.National Key Laboratory for Crop Biology, Agronomy College, Shandong Agricultural University, Tai’an 271018, China

Received:2008-01-08 Online:2009-01-25 Published:2009-02-20

摘要/Abstract

摘要： 利用高效液相色谱(HPLC)技术测定了墨西哥玉米留茬中糖组分含量,分析了氮素对牧草留茬中糖组分含量及再生草产量的影响。结果表明,墨西哥玉米留茬中含有水溶性多糖(WSP)、蔗糖、葡萄糖、果糖和甘露醇5种可溶性糖组分,施肥后WSP、蔗糖、葡萄糖和果糖含量均低于对照N0,蔗糖和葡萄糖含量随施氮量的增加而降低,果糖含量随施氮量的增加而升高。墨西哥玉米N0处理再生草干物质产量最低,低施氮量(300kg/hm²)一次性施用(N1处理)、高施氮量(600kg/hm²)分次施用(N4处理)可获得较高的生物量。

Abstract: High performance liquid chromatography (HPLC) technology was used to measure sugar content in the stubbles of Zea mexicana. The effect of nitrogen on sugar content and the relationship between sugar content and regeneration in the stubbles was analyzed and showed that the soluble sugar content of Z. mexicana. Following one nitrogen application was significantly higher than that of the CK, which was higher than that of the three nitrogen applications treatment. The sugar content decreased as the amount of nitrogen increased. There were five soluble sugars (WSP, sucrose, glucose, fructose and mannitol) in the stubbles of Z. mexicana, and after nitrogen application, the contents of WSP, sucrose, glucose and fructose was lower than that of the CK. The sucrose and glucose content decreased with an increase of nitrogen but the fructose content increased. Regression analysis showed that sucrose, fructose and mannitol were the principal factors that affected the regeneration of Z. mexicana. The sucrose and mannitol content decreased while fructose rose during the H1 period but sucrose content rose while fructose and mannitol contents decreased during the H2 period and were favorable for regrowth. The CK dry matter yield of the regrowth was the lowest of the treatments and the highest biomass was obtained using a low nitrogen quantity (300 kg/hm²) applied once or a high nitrogen quantity (600 kg/hm²) applied three times.

中图分类号:

张晓艳,刘锋,王风云,董树亭. 墨西哥玉米留茬中糖组分含量对氮素的响应[J]. 草业学报, 2009, 18(1): 184-187.

ZHANG Xiao-yan, LIU Feng, WANG Feng-yun, DONG Shu-ting. Effects of nitrogenous fertilizer strategies on sugar components in the stubbles of Zea mexicana[J]. Acta Prataculturae Sinica, 2009, 18(1): 184-187.

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