Controlled-release urea decreased ammonia volatilization and increased nitrogen use efficiency of cotton

2017 ◽  
Vol 180 (6) ◽  
pp. 667-675 ◽  
Author(s):  
Xiaofei Tian ◽  
Jibiao Geng ◽  
Yanle Guo ◽  
Chengliang Li ◽  
Min Zhang ◽  
...  
Keyword(s):  
Controlled Release ◽  
Nitrogen Use Efficiency ◽  
Ammonia Volatilization ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Controlled Release Urea

scholarly journals Ammonia volatilization from enhanced-efficiency urea on no-till maize in brazilian cerrado with improved soil fertility

2016 ◽  
Vol 40 (2) ◽  
pp. 133-144 ◽  
Author(s):  
Eduardo Lopes Cancellier ◽  
Douglas Ramos Guelfi Silva ◽  
Valdemar Faquin ◽  
Bruno de Almeida Gonçalves ◽  
Leandro Lopes Cancellier ◽  
...  
Keyword(s):  
Controlled Release ◽  
Ammonia Volatilization ◽  
Slow Release ◽  
Urease Inhibitors ◽  
N Accumulation ◽  
Nitrogen Use ◽  
No Till ◽  
Use Efficiency ◽  
Slow Release Urea ◽  
Controlled Release Urea

ABSTRACT High nitrogen losses by ammonia volatilization are expected when urea is used as the source of N. The use of controlled-release urea and urease inhibitors are possible strategies to reduce such losses and increase nitrogen use efficiency. This study aimed to evaluate nitrogen losses by ammonia volatilization from stabilized, slow and controlled release urea and its absorption by maize grown under no-till in an improved Cerrado soil. Four N sources were used: conventional urea, urea + N-(n-butyl) thiophosphoric triamide (NBPT), urea + Cu and B and urea coated by sulfur + polymers. These N sources were surface applied along the rows using three N doses of 100, 150 and 200 kg ha-1. No N was added to the control. Data were collected regarding N losses by volatilization, the N contents accumulated in the stubble and grains, and the yields of the stubble and grains. Stabilized urea and slow release urea were efficient for postponing the ammonia volatilization peaks. The urease inhibitors postponed the peaks for up to two days, reducing the accumulated volatilization by 18% when compared with common urea. Polymer sulfur coated urea resulted in a 37% reduction in ammonia volatilization. Increasing the N application rate to 200 kg ha-1 resulted in 16% greater yields and 37% greater N accumulation in the plants relative to the control. However, the stabilized and slow-release urea did not improve the N accumulation or yield. Consequently, the nitrogen use efficiency of maize was not improved relative to the use of conventional urea.

scholarly journals Application of controlled release urea improved grain yield and nitrogen use efficiency: A meta-analysis

PLoS ONE ◽  
2020 ◽  
Vol 15 (10) ◽  
pp. e0241481
Author(s):  
Shuhao Zhu ◽  
Liyuan Liu ◽  
Yan Xu ◽  
Yanying Yang ◽  
Rongguang Shi
Keyword(s):  
Controlled Release ◽  
Grain Yield ◽  
Nitrogen Use Efficiency ◽  
Meta Analysis ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Controlled Release Urea

Controlled-release urea reduced nitrogen leaching and improved nitrogen use efficiency and yield of direct-seeded rice

2018 ◽  
Vol 220 ◽  
pp. 191-197 ◽  
Author(s):  
Shugang Zhang ◽  
Tianlin Shen ◽  
Yuechao Yang ◽  
Yuncong C. Li ◽  
Yongshan Wan ◽  
...  
Keyword(s):  
Controlled Release ◽  
Nitrogen Use Efficiency ◽  
Nitrogen Leaching ◽  
Nitrogen Use ◽  
Reduced Nitrogen ◽  
Direct Seeded ◽  
Use Efficiency ◽  
Controlled Release Urea

Controlled Release Urea Improved Nitrogen Use Efficiency and Yield of Wheat and Corn

2016 ◽  
Vol 108 (4) ◽  
pp. 1666-1673 ◽  
Author(s):  
Jibiao Geng ◽  
Jianqiu Chen ◽  
Yunbao Sun ◽  
Wenkui Zheng ◽  
Xiaofei Tian ◽  
...  
Keyword(s):  
Controlled Release ◽  
Nitrogen Use Efficiency ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Controlled Release Urea

Controlled‐release urea improved cotton productivity and nitrogen use efficiency in China: A meta‐analysis

2021 ◽  
Author(s):  
Xiaofei Tian ◽  
Zhen Fan ◽  
Youxin Zhao ◽  
Shuchen Sun ◽  
Tingting Li ◽  
...  
Keyword(s):  
Controlled Release ◽  
Nitrogen Use Efficiency ◽  
Meta Analysis ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Controlled Release Urea
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