Abstract：Taken Vitex negundo community in Taihang mountainous region as object, this paper studied the effects nitrogen absorption of Vitex negundo in different nitrogen fertilization levels. The main purpose of this paper is to discover the response of plant to different nitrogen environment. Results showed that：1) Both the contents of nitrogen in mature and withered leaves increased with increased nitrogen fertilization level, and the maximum values occurred at 32g/m2 nitrogen fertilization level. Nitrogen fertilization had obvious effects on the content of phosphor in mature leaves with the maximum value being at 8g/m2, which was 2.29 times that of control. Whereas it had nothing to do with the content of phosphor in withered leaves. 2) Nitrogen fertilization could lead to the decrease of nitrogen resorption efficiency of Vitex negundo. The nitrogen fertilization was negatively correlated with nitrogen resorption efficiency, average decrease being up to 18.57%. But when nitrogen fertilization level was 4-8g/m2, the change of nitrogen resorption rate was not obvious. 3) The content of nitrogen in soil increased with increased nitrogen fertilization level. The maximum value of phosphor content in soil was at 4g/m2 nitrogen fertilization level, and the content of phosphor decreased after that point. Nitrogen resorption efficiency of Vitex negundo negatively correlated with soil organic matter and soil moisture content.
赵勇1，朱彦锋1，王谦1，陈桢1，樊巍2，杨喜田1. 不同人工施氮量对荆条氮素利用的影响[J]. 中国水土保持科学, 2011, 9(5): 110-114.
DIAO Yong, SHU Pan-Feng, WANG Qian, CHEN Zhen, FAN Wei, YANG Chi-Tian. Effects of nitrogen absorption of Vitex negundo in different nitrogen fertilization levels. SSWCC, 2011, 9(5): 110-114.
2011, Vol. 9 
