scholarly journals Effects of biochar and nitrogen fertilizer on soil physicochemical properties, nitrogen use efficiency and upland rice (Oryza sativa) yield grown on an Alfisol in Southwestern Nigeria

2019 ◽  
Vol 8 (3) ◽  
pp. 295-308 ◽  
Author(s):  
Segun Oladele ◽  
Adebayo Adeyemo ◽  
Moses Awodun ◽  
Ayodele Ajayi ◽  
Abayomi Fasina
Keyword(s):  
Oryza Sativa ◽  
Physicochemical Properties ◽  
Nitrogen Use Efficiency ◽  
Nitrogen Fertilizer ◽  
Upland Rice ◽  
Soil Physicochemical Properties ◽  
Southwestern Nigeria ◽  
Nitrogen Use ◽  
Use Efficiency

scholarly journals Effect of nitrogen fertilizer source on grain yield and nitrogen use efficiency in rice (Oryza sativa L.) cv. Shiroudi

2019 ◽  
Vol 21 (1) ◽  
pp. 82-95
Author(s):  
Mohammad Mohammadian ◽  
Ali Reza Astaraie ◽  
Amir Lakzian ◽  
Hojat Emami ◽  
Masoud Kavoosi ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Nitrogen Use Efficiency ◽  
Nitrogen Fertilizer ◽  
Oryza Sativa L ◽  
Nitrogen Use ◽  
Use Efficiency

Interaction of erect panicle genotype and nitrogen fertilizer application on the source-sink ratio and nitrogen use efficiency in rice

2022 ◽  
Vol 278 ◽  
pp. 108430
Author(s):  
Olusegun Idowu ◽  
Yuanzheng Wang ◽  
Koki Homma ◽  
Tetsuya Nakazaki ◽  
Zhengjin Xu ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Nitrogen Fertilizer ◽  
Fertilizer Application ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Source Sink

scholarly journals Optimized split nitrogen fertilizer increase photosynthesis, grain yield, nitrogen use efficiency and water use efficiency under water-saving irrigation

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Zhen Zhang ◽  
Yongli Zhang ◽  
Yu Shi ◽  
Zhenwen Yu
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Water Use Efficiency ◽  
Water Use ◽  
Nitrogen Use Efficiency ◽  
Nitrogen Fertilizer ◽  
Water Saving ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Nitrogen Ratio

AbstractThis study aims to investigate optimization of the basal-top-dressing nitrogen ratio for improving winter wheat grain yield, nitrogen use efficiency, water use efficiency and physiological parameters under supplemental irrigation. A water-saving irrigation (SI) regime was established and sufficient irrigation (UI) was used as a control condition. The split-nitrogen regimes used were based on a identical total nitrogen application rate of 240 kg ha−1 but were split in four different proportions between sowing and the jointing stage; i.e. 10:0 (N1), 7:3 (N2), 5:5 (N3) and 3:7 (N4). Compared with the N1, N2 and N4 treatments, N3 treatment increased grain yield, nitrogen and water use efficiencies by 5.27–17.75%, 5.68–18.78% and 5.65–31.02%, respectively, in both years. The yield advantage obtained with the optimized split-nitrogen fertilizer application may be attributable to greater flag leaf photosynthetic capacity and grain-filling capacity. Furthermore, the N3 treatment maintained the highest nitrogen and water use efficiencies. Moreover, we observed that water use efficiency of SI compared with UI increased by 9.75% in 2016 and 10.79% in 2017, respectively. It can be concluded that SI along with a 5:5 basal-top-dressing nitrogen ratio should be considered as an optimal fertigation strategy for both high grain yield and efficiency in winter wheat.

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