Evaluation of Nitrogen Loss from Leaves of Different Varieties of Rice Using 15N-Labelling Technique
Journal Title: Journal of Applied Chemical Science - Year 2016, Vol 3, Issue 1
Abstract
Losses of nitrogen from an agricultural system into the atmosphere may cause global warming through the contribution of N2O, NO, and CH4. Therefore, it is important to identify and quantify the source and amount of nitrogen loss in the soil-plant systems. The release of nitrogen from rice leaves throughout the growth period was studied by using a 15N-labelling technique. Indica and Japonica rice crops were evaluated throughout the experiment. Indica plants produced more biomass both shoot and root compared to those of Japonica. However, Indica produced a lower weight of panicle compared to that of Japonica. The effect of rice varieties and nitrogen form became more evident with the growth stage. When labelled-N was applied at tiller stage, 16.2-38.7% of absorbed-N can be lost from rice leaves. When labelled-N was applied at panicle stage, the loss rate of absorbed-N ranged from 18.9% (Japonica, 15NH4+-N) to 62.1% (Indica, 15NO3–-N), and when it was applied at heading stage, the loss percentage of absorbed-N was 14.1% (Japonica, 15NH4+-N), 19.0% (Indica, 15NH4+-N), 59.1% (Japonica, 15NO3–-N), 60.8% (Indica, 15NO3–-N), respectively, at harvest, indicating that nitrogen loss was higher when rice was applied with 15NO3–-N than 15NH4+-N either in Indica or Japonica, and for variety, Indica had much more nitrogen loss from leaves than that of Japonica. Accordingly, it may be concluded that 15N-labelled technique showed a high amount of nitrogen loss from leaves of rice.
Authors and Affiliations
CHEN Nengchang, Widjajanto Didik W, Yiji ZHENG, Shunji INAGA, Atsushi TASAKI
Keywords
Related Articles
- EP ID EP193896
- DOI 10.22341/jacs.on.00301p300
- Views 111
- Downloads 0
Characterization of Curcumin Encapsulation in Chitosan-Sodium Citrate Nanoparticles
The encapsulation of curcumin in chitosan-sodium citrate nanoparticle was studied with ionic gelation method. Identification of functional groups was determined by Fourier Transform Infrared spectrophotometry method. The...
The Role of Local Microorganisms Generated from Rotten Fruits and Vegetables in Producing Liquid Organic Fertilizer
Experiment was conducted in order to find the role of local microorganisms (LoM) generated from rotten fruits and vegetables in producing liquid organic fertilizer (LOF). LoM resulting from rotten fruits and vegetables w...
Catalytic Hydrogenation of Dimethylnitrobenzene to Dimethylaniline Over Pd/C Catalysts
The catalytic transfer hydrogenation of dimethylnitrobenzene to dimethylaniline was studied in the temperature range 343–403, a pressure range of 4–10 bar H2 and ethanol as solvent using Pd/C as catalyst above agitation...
Modeling Dehydration of Acetone by Use of Polyacrylonitrile Membrane and Polyethylene Glycol with the Help of Artificial Neural Network
The authors of this research analyzed the amount of water-acetone separation in the pervaporation process by means of polyacrylonitrile membranes and polyethylene glycol with the help of artificial neural network. The pe...
Roles of Hydroxyl Ions in Water-Based Solvents to Isolate Antioxidant Constituents of Natural Products
Roles of hydroxyl ions in water-based solvents to isolate antioxidant constituents of natural products were studied in present research. Sarang semut (Myrmecodia pendens) tuber as the model material of the study was cons...