Controlled‐release urea combined with fulvic acid enhanced carbon/nitrogen metabolic processes and maize growth

2021 ◽  
Author(s):  
Zeli Li ◽  
Qi Chen ◽  
Feng Gao ◽  
Qingmin Meng ◽  
Mingyang Li ◽  
...  
Keyword(s):  
Controlled Release ◽  
Fulvic Acid ◽  
Metabolic Processes ◽  
Maize Growth ◽  
Controlled Release Urea

scholarly journals Effects of controlled-release urea combined with fulvic acid on soil inorganic nitrogen, leaf senescence and yield of cotton

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jibiao Geng ◽  
Xiuyi Yang ◽  
Xianqi Huo ◽  
Jianqiu Chen ◽  
Shutong Lei ◽  
...  
Keyword(s):  
Controlled Release ◽  
Fulvic Acid ◽  
Leaf Senescence ◽  
Nitrogen Fertilizer ◽  
Inorganic Nitrogen ◽  
Fiber Quality ◽  
Nitrogen Fertilizers ◽  
Soil Inorganic Nitrogen ◽  
Controlled Release Urea ◽  
Soil Inorganic

Abstract A split-plot field experiment was conducted in 2018–2019 to study the effects of nitrogen fertilizer types and fulvic acid (FA) rates on soil nitrogen and cotton growth. The nitrogen fertilizers included controlled-release urea (CRU) and urea, which were applied combined with three FA rates (90, 180 and 270 kg ha-1). The main plot was the nitrogen fertilizer type, and the subplot was the FA rate. The results showed that the lint yield of the FA180 treatment was 5.2–8.6% higher than the FA90 and FA270 treatments. Moreover, moderate FA application markedly improved the cotton leaf SPAD value (chlorophyll relative value), photosynthesis and chlorophyll fluorescence parameters compared with low and high FA rates. Replacing urea with CRU significantly increased the soil inorganic nitrogen and nitrogen use efficiency and also improved cotton fiber quality parameters. Meanwhile, the boll weight and seed yield of the CRU treatments were 1.5–8.4% and 3.3–19.1% higher, respectively, than the urea treatments. The interaction between nitrogen type and FA rate had a positive effect on cotton growth. Thus, the application of CRU combined with 180 kg ha-1 FA on cotton can not only improve the fiber quality and delay leaf senescence but also increase the yield and economic benefit.

The combined application of controlled-release urea and fulvic acid improved the soil nutrient supply and maize yield

2020 ◽  
pp. 1-14
Author(s):  
Zeli Li ◽  
Zhiguang Liu ◽  
Min Zhang ◽  
Qi Chen ◽  
Lei Zheng ◽  
...  
Keyword(s):  
Controlled Release ◽  
Fulvic Acid ◽  
Soil Nutrient ◽  
Maize Yield ◽  
Nutrient Supply ◽  
Combined Application ◽  
Controlled Release Urea

Optimization of Pan Coating Process for Increased Efficiency of Controlled-Release Urea Fertilizer

2021 ◽  
Vol 57 (4) ◽  
pp. 333-342
Author(s):  
Trung Huu Nguyen ◽  
Tran Nguyen Minh An ◽  
Mahboob Alam ◽  
Duc Hoai Tran ◽  
Nghi Tran ◽  
...  
Keyword(s):  
Controlled Release ◽  
Layer Thickness ◽  
Release Time ◽  
Coating Process ◽  
Analysis Method ◽  
Sauter Mean Diameter ◽  
Urea Fertilizer ◽  
The Relationship ◽  
Central Composite ◽  
Controlled Release Urea

The goal of the research is to develop an experimental mathematical model of pan coating process effect on the biodegradable polymer and to determine optimal process parameters. The polymer solution was conducted with phosphated di-starch phosphate, polyvinyl alcohol, and polyacrylic acid and performed as material coating for the controlled-release urea fertilizer. The image analysis method has been used to determine the particle size distribution, Sauter mean diameter of the particle and layer thickness that is novel. The central composite rotatable design has been selected to determine the regression models of the process, which described the relationship between two objective variables as layer thickness, release time with angle of pan, spray flow, and coating time. The statistical analysis results indicate the fitness of model.

The effects of controlled release urea on maize productivity and reactive nitrogen losses: A meta-analysis

2019 ◽  
Vol 246 ◽  
pp. 559-565 ◽  
Author(s):  
Wushuai Zhang ◽  
Zhengyuan Liang ◽  
Xiaoming He ◽  
Xiaozhong Wang ◽  
Xiaojun Shi ◽  
...  
Keyword(s):  
Controlled Release ◽  
Meta Analysis ◽  
Nitrogen Losses ◽  
Reactive Nitrogen ◽  
Maize Productivity ◽  
Controlled Release Urea

scholarly journals Reducing nitrogen pollution while improving tomato production by controlled-release urea application

2018 ◽  
Vol 64 (5) ◽  
pp. 632-641 ◽  
Author(s):  
Jungang Yang ◽  
Shangqiang Liao ◽  
Yanmei Li ◽  
Bing Cao ◽  
Yanxin Sun ◽  
...  
Keyword(s):  
Controlled Release ◽  
Nitrogen Pollution ◽  
Tomato Production ◽  
Controlled Release Urea

Bio‐based epoxy modified with nano‐SiO 2 and organosilicon for controlled‐release urea

2021 ◽  
pp. 51810
Author(s):  
Songling Chen ◽  
Yanyu Han ◽  
Chunyu Chen ◽  
Hongdou Liu ◽  
Hongtao Zou
Keyword(s):  
Controlled Release ◽  
Controlled Release Urea

Can controlled-release urea replace the split application of normal urea in China? A meta-analysis based on crop grain yield and nitrogen use efficiency

2022 ◽  
Vol 275 ◽  
pp. 108343
Author(s):  
Guangxin Zhang ◽  
Dehao Zhao ◽  
Shiju Liu ◽  
Yuncheng Liao ◽  
Juan Han
Keyword(s):  
Controlled Release ◽  
Grain Yield ◽  
Nitrogen Use Efficiency ◽  
Meta Analysis ◽  
Split Application ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Controlled Release Urea

Controlled release urea improved the nitrogen use efficiency, yield and quality of potato (Solanum tuberosum L.) on silt loamy soil

2015 ◽  
Vol 181 ◽  
pp. 60-68 ◽  
Author(s):  
Xiang Gao ◽  
Chengliang Li ◽  
Min Zhang ◽  
Rong Wang ◽  
Baocheng Chen
Keyword(s):  
Solanum Tuberosum ◽  
Controlled Release ◽  
Nitrogen Use Efficiency ◽  
Solanum Tuberosum L ◽  
Loamy Soil ◽  
Nitrogen Use ◽  
Yield And Quality ◽  
Use Efficiency ◽  
Controlled Release Urea

scholarly journals Impact of controlled-release urea on rice yield, nitrogen use efficiency and soil fertility in a single rice cropping system

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Zhaoming Chen ◽  
Qiang Wang ◽  
Junwei Ma ◽  
Ping Zou ◽  
Lina Jiang
Keyword(s):  
Controlled Release ◽  
Soil Fertility ◽  
Nitrogen Use Efficiency ◽  
Rice Yield ◽  
Cropping System ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Single Rice ◽  
Controlled Release Urea
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