Effects of different controlled-release nitrogen fertilisers on ammonia volatilisation, nitrogen use efficiency and yield of blanket-seedling machine-transplanted rice

Ke, Jian; Xing, Xiaoming; Li, Ganghua; Dou, Fugen; Wang, Shaohua; Liu, Zhenghui; Tang, She; Ding, Chengqiang; Chen, Lin

doi:10.1016/j.fcr.2016.12.027

Cited by 119 publications

(81 citation statements)

References 35 publications

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“…Several studies shown decreases in N loss by volatilization with coated urea as reported by Francisco et al (2011), Jantalia et al (2012), Xu et al (2013), Nash et al (2015), Pan et al (2016) and Ke et al (2017). These results suggest the promising potential effect of fertilize technology on more sustainable agriculture.…”

Section: Discussionmentioning

confidence: 55%

“…Nitrogen (N) is a key factor driving the crop yield in second crop system. Agriculture practice regarding N application needs improvements to avoid excess of N loss through leaching and volatilization (SHI et al, 2010;SUN et al, 2015;KE et al, 2017). These processes has been involved in global warming, and excessive delivery of nitrous oxide and ammonia from synthetic N fertilizer to the environment (RAVINSHANKARA et al, 2009;RAYMOND et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Ammonia volatilization in response to coated and conventional urea in maize crop field

Kaneko¹,

Ferreira²,

Leal³

et al. 2019

Biosci. J.

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The properly measurement of gas emissions and nutrient availability to crops using technologies such as polymer-coated urea are required to monitored the possible nitrogen (N) fertilizer pollution in the environment. This study aimed to evaluate N loss through ammonia volatilization from polymer-coated and conventional urea in maize field trials under two different environments. The study was carried out in Chapadão do Sul and Selvíria State of Mato Grosso do Sul evaluating the first and second harvest of maize plants. Nitrogen fertilizers were applied as polymer-coated, conventional urea and control plots were used as reference to evaluate N loss through volatilization (3, 6, 9, 12, and 15 days after fertilizer application). The peak of ammonia volatilization was observed during the first three days after fertilizer application corresponding up to 44% of total N supplied. Polymer-coated urea had promising results showing less ammonia volatilization during the first crop. However, the same result was not observed for second crop.

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Section: Discussionmentioning

confidence: 55%

Section: Introductionmentioning

confidence: 99%

Ammonia volatilization in response to coated and conventional urea in maize crop field

Kaneko¹,

Ferreira²,

Leal³

et al. 2019

Biosci. J.

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“…Innovative technologies for improving the utilization efficiency and reducing the production cost of P fertilizers are urgently needed.Controlled-release fertilizers have been proved to improve the utilization efficiency of both nitrogen (N) and P fertilizer 9,10 . While much research has been conducted on controlled-release N fertilizers 11,12 , relatively much less work has focused on controlled-release P fertilizers. Chemically bound P in soil could become available to plant under certain biogeochemical conditions, serving as a natural reservoir of "slow-release" P 13 .…”

mentioning

confidence: 99%

Water Polishing improved controlled-release characteristics and fertilizer efficiency of castor oil-based polyurethane coated diammonium phosphate

Lu¹,

Tian²,

Zhang³

et al. 2020

Sci Rep

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The production cost of controlled-release fertilizers is an important factoring limiting their applications. To reduce the coating cost of diammonium phosphate (DAP) and improve its nutrition release characteristics, the fertilizer cores were modified by water polishing with three dosages at 1, 2, and 3%. The effects of modification were evaluated in terms of particle hardness, size distribution, angle of repose and specific surface area. Castor oil-based polyurethane was used as coating material for fertilizer performance evaluation. A pot experiment was conducted to verify the fertilizer efficiency of coated diammonium phosphate (CDAP) with maize. The results showed that polishing with 2% water reduced the angle of repose by 2.48-10.57% and specific surface area by 5.70-48.76%, making it more suitable for coating. The nutrient release period of CDAP was significantly prolonged by 5.36 times. Soil available phosphorous, enzyme activities, maize grain yield, and phosphorous use efficiency were all improved through the blending application of coated and normal phosphate fertilizer. This study demonstrated that water-based surface modification is a low-cost and effective method for improvement and promotion of controlled release P fertilizers. Phosphorus (P) is an essential nutrient for maintaining healthy crop growth, reproduction and yield 1-3 . However, farmers tend to apply excessive amount of P fertilizers in order to obtain high yields 4 , resulting in degradation of microbial community activity and soil tilth 5 , decrease in crop quality 6 , and varying forms of water pollution 7 . Meanwhile, P fertilizers are mainly derived from P rock, a non-renewable resource. With the increasing use of P fertilizer, the global P reserve is facing serious concerns 8 . Innovative technologies for improving the utilization efficiency and reducing the production cost of P fertilizers are urgently needed.Controlled-release fertilizers have been proved to improve the utilization efficiency of both nitrogen (N) and P fertilizer 9,10 . While much research has been conducted on controlled-release N fertilizers 11,12 , relatively much less work has focused on controlled-release P fertilizers. Chemically bound P in soil could become available to plant under certain biogeochemical conditions, serving as a natural reservoir of "slow-release" P 13 . However, the slow release characteristics of soil bound P are affected by many uncontrollable factors, such as temperature, humidity, organic acid secreted by crop roots, soil pH, and soil mineral composition [14][15][16][17] . Thus, P released under these conditions cannot fulfill the crop P demand, especially during the critical growth period. Recent research indicated that the fixed rate of soil P was closely related to the concentration of P in soil solution 18 . Coated P fertilizers have advantages over conventional P fertilizers in that the polymer coating prevents direct contact between soil and fertilizer, thus the controlled release of P promotes uptake by plants and reduces P fix...

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“…This indicates that, based on the conventional application rate for urea‐N, the use of PCU‐N as source of N did not significantly improve crop yields, although it had a greater N uptake and NUE . These findings are in contrast to previous reports that controlled‐release N fertilizers increase crop yields . This discrepancy may result from primary differences in the coated material and the soil temperature, which both affect the release of N and the timing of the supply of N .…”

Section: Discussionmentioning

confidence: 61%

Reduction in nitrogen fertilizer applications by the use of polymer‐coated urea: effect on maize yields and environmental impacts of nitrogen losses

Yong

Han

et al. 2019

J Sci Food Agric

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BACKGROUND: Urea is commonly over-applied as a nitrogen (N) fertilizer to crops in southern China and has a low utilization efficiency as a result of the high precipitation and high temperatures in this region. This has led to a need to optimize the management of N fertilizer use in maize crops on the subtropical hilly uplands of southern China. 0-30%, the NH 3 loss was significantly reduced by 12.7-36.1%. CONCLUSION:The findings of the present study suggest that the use of PCU could allow a reduction in the application of N of 20-30% compared to traditional agricultural practices in this area with the same yield of maize, although with significantly decreased NH 3 and N 2 O losses and the increased utilization of N.

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Effects of different controlled-release nitrogen fertilisers on ammonia volatilisation, nitrogen use efficiency and yield of blanket-seedling machine-transplanted rice

Cited by 119 publications

References 35 publications

Ammonia volatilization in response to coated and conventional urea in maize crop field

Ammonia volatilization in response to coated and conventional urea in maize crop field

Water Polishing improved controlled-release characteristics and fertilizer efficiency of castor oil-based polyurethane coated diammonium phosphate

Reduction in nitrogen fertilizer applications by the use of polymer‐coated urea: effect on maize yields and environmental impacts of nitrogen losses

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