Effects of (15)Nitrogen-Labeled Gel-Based Controlled-Release Fertilizer on Dry-Matter Accumulation and the Nutrient-Uptake Efficiency of Corn

文献类型： 外文期刊

第一作者： Ding, Hong

作者： Ding, Hong;Zhang, Yushu;Qin, Shengjin;Li, Weihua;Li, Shiqing;Li, Shiqing

作者机构：

关键词： Corn growth;gel-based CRF;N-15 tracer;nutrient-uptake efficiency

期刊名称：COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS （ 影响因子：1.327； 五年影响因子：1.315 ）

ISSN： 0010-3624

年卷期： 2011 年 42 卷 13 期

页码：

收录情况： SCI

摘要： Effects of a new gel-based controlled-release fertilizer (G-CRF) on the growth and nutrient uptake efficiency of corn were investigated based on a pot experiment. The fate of fertilizer nitrogen (N) was also studied by N-15 tracer method. The results showed that, compared with conventional fertilizer, the G-CRF had significant effects on increasing dry matter, N, phosphorus (P), and potassium (K) accumulations, which increased by 6.4% (P < 0.05), 14.2% (P < 0.01), 8.0% (P < 0.01), and 6.0% (P < 0.05), respectively, in the mature stage. The N-15 tracer experiment showed N-uptake efficiency in G-CRF treatment increased by 8.0% and loss rate decreased by 8.9% compared with conventional fertilizer treatment. Application of G-CRF improved P and K uptake efficiency by 5.8 and 11.6 percentage points in the mature stage. Thus, the results implied the G-CRF tested could provide essential plant nutrients including N, P, and K and delay the release of them efficiently. Moreover, G-CRF had significant effects on improving nutrient-uptake efficiencies and plant yield.

分类号：

  • 相关文献

[1]Role of Carbon Substrates Added in the Transformation of Surplus Nitrate to Organic Nitrogen in a Calcareous Soil. Qiu Shao-Jun,Ju Xiao-Tang,Guo Zi-De,Christie, P.,Zhang Fu-Suo,Qiu Shao-Jun,Ingwersen, J.,Bisharat, R.,Streck, T.,Stange, C. F.,Christie, P.. 2013

[2]Effects of applied urea and straw on various nitrogen fractions in two Chinese paddy soils with differing clay mineralogy. Peng, Pei-Qin,Qiu, Shao-Jun,He, Ping,Qiu, Shao-Jun,Christie, Peter,Ju, Xiao-Tang,Peng, Pei-Qin,Li, Ling,Wu, Jin-Shui,Li, Ling,Liu, Qiang,Christie, Peter. 2012

作者其他论文 更多>>

微信小程序