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Effect of Boric Acid and DCD Dual Inhibitors Slow-release Fertilizer on Yield and Nitrogen Use Efficiency in Rape(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年19期
Page:
183-187
Research Field:
Publishing date:

Info

Title:
Effect of Boric Acid and DCD Dual Inhibitors Slow-release Fertilizer on Yield and Nitrogen Use Efficiency in Rape
Author(s):
SHI Yan-xing1; LIU Shu-qing 1.2; LU Yang1; CAO Yin-zhu1
1.College of Resource and Environmental Science,Agricultural University of Hebei,Baoding,Hebei 071001;
 2.Key Laboratory for Farmland Eco-Environment in Hebei Province,Baoding,Hebei 071001
Keywords:
boric acid; DCD; rape; yield; nitrogen use efficiency
PACS:
S 565.4
DOI:
-
Abstract:
Taking rape as material,pot experiment was conducted to investigate the effect of boric acid and DCD dual inhibitors slowrelease fertilizers on yield and nitrogen use efficiency of rape.The results showed that both urease inhibitor and nitrification inhibitor could effect the output of rape.The output rate increased 20.00%～30.33%,compared with normal urea.It reached the highest yield when the concentration of boric acid,dicyandiamide was 5%,increased 30.33%.Application of inhibitors of rape nitrogen use efficiency generally between 40.00%～62.27%.Among them when the concentration of boric acid,dicyandiamide were all 5%,nitrogen use efficiency as high as 62.27%,31% higher than common urea.Every other inhibitors slow-release fertilizer nitrogen utilization efficiency were significantly higher than the normal urea treatment,compared with the normal urea,generally between 16.00%～30.99%.The research had offered the scientific theoretical foundation for making slow controlled release fertilizer,in which increasing crop production,improving effective nitrogen plain use efficiency,increasing economic efficiency,decreasing the environmental pollution,and reasonable fertilization.

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Last Update: 2014-11-26