Simulation of Nitrate Leaching under Different Irrigation Deficit and Nitrogen Levels in Tomato Crop using HYDRUS 1-D
Masaud Khan1*, Muhammad Jamal Khan1, Tahir Sarwar1 and Muhammad Jamal Khan2
1Department of Water Management, The University of Agriculture, Peshawar, Khyber Pakhtunkhwa, Pakistan; 2Soil and Environmental Sciences, Faculty of Crop Production Sciences, The University of Agriculture, Peshawar, Khyber Pakhtunkhwa, Pakistan.
[email protected]
Figure 1
Moisture content in the root zone and Rainfall.
Figure 2
Volumetric soil moisture content observed vs simulated (2015).
Figure 3
Volumetric soil moisture content observed vs simulated (2016).
Figure 4
Nitrate leaching actual vs HYDRUS predicted (2015)
Figure 5
Nitrate leaching actual vs HYDRUS predicted (2016).
Figure 6
Simulated Nitrate leaching under increasing irrigation conditions and full Nitrogen dose.
Figure 7
Simulated Nitrate leaching under full irrigation and increasing Nitrogen doses.
Figure 8
Simulated Nitrate leaching under 90% irrigation and different Nitrogen doses (100 and 55% of recommended dose).
Figure 9
Simulated Nitrate leaching under 80% irrigation and different Nitrogen doses (100 and 55% of recommended dose).