Modelling nitrogen transport and transformation in a transplanted rice field experiment with reduced irrigation

2018 ◽  
Vol 68 (5) ◽  
pp. 457-470
Author(s):  
Yong Li ◽  
Chun Xu ◽  
Shuang Wang ◽  
Yingying Wang
Keyword(s):  
Field Experiment ◽  
Rice Field ◽  
Nitrogen Transport ◽  
Transport And Transformation ◽  
Transplanted Rice

scholarly journals Modeling of Soil Water Regime and Water Balance in a Transplanted Rice Field Experiment with Reduced Irrigation

Water ◽  
2017 ◽  
Vol 9 (4) ◽  
pp. 248 ◽  
Author(s):  
Yong Li ◽  
Jirka Šimůnek ◽  
Shuang Wang ◽  
Jiahui Yuan ◽  
Weiwei Zhang
Keyword(s):  
Water Balance ◽  
Field Experiment ◽  
Soil Water ◽  
Water Regime ◽  
Rice Field ◽  
Soil Water Regime ◽  
Transplanted Rice

scholarly journals Numerical Analysis of the Transport and Fate of Nitrate in the Soil and Nitrate Leaching to Drains

2001 ◽  
Vol 1 ◽  
pp. 170-180 ◽  
Author(s):  
Alaa El-Sadek ◽  
Mona Radwan ◽  
Jan Feyen
Keyword(s):  
Nitrate Leaching ◽  
Initial Conditions ◽  
Continuous Cropping ◽  
Nitrogen Transport ◽  
State Variables ◽  
Nitrogen Application ◽  
Transport And Transformation ◽  
Bottom Boundary Condition ◽  
Rainfall Depth ◽  
Simulation Results

In this study, the transport and fate of nitrate within the soil profile and nitrate leaching to drains were analyzed by comparing historic field data with the simulation results of the DRAINMOD model. The nitrogen version of DRAINMOD was used to simulate the performance of the nitrogen transport and transformation of the Hooibeekhoeve experiment, situated in the sandy region of the Kempen (Belgium) and conducted for a 30-year (1969–1998) period. In the analysis, a continuous cropping with maize was assumed. Comparisons between experimentally measured and simulated state variables indicate that the nitrate concentrations in the soil and nitrate leaching to drains are controlled by the fertilizer practice, the initial conditions, and the rainfall depth and distribution. Furthermore, the study reveals that the model used gives a fair description of the nitrogen dynamics in the soil and subsurface drainage at field scale. From the comparative analysis between experimental data and simulation results it can also be concluded that the model after calibration is a useful tool to optimize as a function of the combination “climate-crop-soil-bottom boundary condition” the nitrogen application strategy resulting in an acceptable level of nitrate leaching for the environment.

Dissipation of Pendimethalin in Soil Under Direct Seeded and Transplanted Rice Field

2019 ◽  
Vol 104 (2) ◽  
pp. 293-300
Author(s):  
Amanpreet Makkar ◽  
Pervinder Kaur ◽  
Paawan Kaur ◽  
Makhan S. Bhullar
Keyword(s):  
Rice Field ◽  
Transplanted Rice ◽  
Direct Seeded

scholarly journals Evaluation of water movement and water losses in a direct-seeded-rice field experiment using Hydrus-1D

2014 ◽  
Vol 142 ◽  
pp. 38-46 ◽  
Author(s):  
Yong Li ◽  
Jirka Šimůnek ◽  
Longfei Jing ◽  
Zhentin Zhang ◽  
Lixiao Ni
Keyword(s):  
Field Experiment ◽  
Rice Field ◽  
Water Movement ◽  
Water Losses ◽  
Direct Seeded ◽  
Hydrus 1D

scholarly journals An Assessment of the Vertical Movement of Water in a Flooded Paddy Rice Field Experiment Using Hydrus-1D

Water ◽  
2018 ◽  
Vol 10 (6) ◽  
pp. 783 ◽  
Author(s):  
Abdikani Mo’allim ◽  
Md Kamal ◽  
Hadi Muhammed ◽  
Nasehir Yahaya ◽  
Mohamed Zawawe ◽  
...  
Keyword(s):  
Field Experiment ◽  
Rice Field ◽  
Vertical Movement ◽  
Paddy Rice ◽  
Paddy Rice Field ◽  
Hydrus 1D

scholarly journals Assessment of Nutrient Leaching in Flooded Paddy Rice Field Experiment Using Hydrus-1D

Water ◽  
2018 ◽  
Vol 10 (6) ◽  
pp. 785 ◽  
Author(s):  
Abdikani Mo’allim ◽  
Md Kamal ◽  
Hadi Muhammed ◽  
Mohd Mohd Soom ◽  
Mohamed Mohamed Zawawi ◽  
...  
Keyword(s):  
Field Experiment ◽  
Rice Field ◽  
Paddy Rice ◽  
Nutrient Leaching ◽  
Paddy Rice Field ◽  
Hydrus 1D

Nitrogen transport and transformation in the saturated-unsaturated zone under recharge, runoff, and discharge conditions

2016 ◽  
Vol 23 (9) ◽  
pp. 8741-8748 ◽  
Author(s):  
Zhifei Ma ◽  
Xinying Lian ◽  
Yonghai Jiang ◽  
Fanhua Meng ◽  
Beidou Xi ◽  
...  
Keyword(s):  
Unsaturated Zone ◽  
Nitrogen Transport ◽  
Transport And Transformation
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