|Table of Contents|

Effects of the Fertilization Measures on Spatial-temporal Dynamics of Soil Nitrogen(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2012年22期
Page:
168-171
Research Field:
Publishing date:

Info

Title:
Effects of the Fertilization Measures on Spatial-temporal Dynamics of Soil Nitrogen
Author(s):
MA Mao-ting; AN Zhi-zhuang; ZOU Guo-yuan; DU Lian-feng; LIU Bao-cun; ZHAO Tong-ke
Institute of Plant Nutrition and Resources，Beijing Academy of Agricultural and Forestry Sciences，Beijing 100097
Keywords:
fertilization; soil; total nitrogen content; nitrate content; ammonium N
PACS:
S 143.1
DOI:
-
Abstract:
According to the analysis of conventional fertilization pattern of farmers in Beijing’s Yanqing,the effects of total nitrogen content，nitrate content and ammonium N in soil were studied.The results showed that optimized fertilization (Chemical nitrogen fertilizer for 120 kg/hm2，phosphatic fertilizer for 90 kg/hm2，potash fertilizer for 135 kg/hm2，organic fertilizer for 7 500 kg/hm2）may improve soil total nitrogen content.Optimized fertilization could reduce the nitrate nitrogen content in soil and prevent its downward leaching than conventional fertilization.In addition，there was a relationship among soil ammonium N in soil and different nitrogen applications and time.

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Last Update: 2014-08-31