The Effect of installation depth and discharge of dripper on soil salinity distribution in subsurface drip irrigation of sugarcane

Document Type : Research Paper

Authors

1 Department of Irrigation and Drainage, Faculty of Water and Environment Engineering, Shahid Chamran University of Ahvaz

2 Professor. Department of Irrigation and Drainage, Faculty of Water and Environment Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran

3 Associate Professor, Department of Irrigation and Drainage, Faculty of Water and Environment Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran

Abstract

The purpose of this study was to investigate the effect of the depth of application and the discharge of drippers on the distribution of soil salinity in the sugarcane field under subsurface drip irrigation. This research was conducted as a split-plot experiment based on complete random blocks design in four replications. Experimental treatments including two dripper distances on the secondary pipe (including L1: 30 cm with a flow rate of 2.2 L h-1 and L2: 50 cm with a flow rate of 3.8 L h-1) and three dripper placement depths (Including D1: 15 cm, D2: 25 cm and D3: 35 cm). In order to investigate the effect of different treatments on salinity distribution in the soil, soil samples were collected four and six months after the start of subsurface drip irrigation, from the soil around the drippers at different intervals. The results of the salinity distribution pattern showed that under the conditions of subsurface drip irrigation, the highest salinity was observed in the bottom of the furrow and in the upper layer of the soil on the mound. Six months after the start of subsurface drip irrigation, the salinity of the soil profile in all treatments increased compared to the beggining, so that the salinity of the area around the drippers in most of the treatments reached above 3 dS m-1. The highest amount of salinity in the upper soil layers was observed in D3L2 treatment. Also, the most favorable salinity distribution pattern in the root development area was observed in D2L1 treatment. Therefore, it can be concluded that the use of drippers at a depth of 25 cm with intervals of 30 cm and a flow rate of 2.2 L h-1 is more suitable for managing soil salinity in the subsurface drip irrigation system.

Keywords

Main Subjects


The Effect of installation depth and discharge of dripper on soil salinity distribution in subsurface drip irrigation of sugarcane

EXTENDED ABSTRACT

Background:

Soil salinization and water deficiency are the major hindrance to the sustainable development of irrigated agriculture in arid and semi-arid regions. To counteract these limitations, advanced irrigation management practices, such as subsurface drip irrigation (SDI), were introduced. One of the most important issues in management of soil salinity in the subsurface drip irrigation method is determining the distribution pattern of soil salinity based on the flow rate and depth of the drippers.

Goals:

According to the necessity of evaluation the salinity distribution in the soil, the purpose of this study was to investigate the effect of the depth of application and the discharge of drippers on the distribution of soil salinity in the sugarcane field under the conditions of subsurface drip irrigation.

Materials and Methods:

This study was done on one hectare field in research field located in Khuzestan Sugarcane Research and Training Institute. This research was conducted as a split-plot experiment based on the complete random blocks design and in four replications. Experimental treatments including two dripper distances on the secondary pipe (including L1: 30 cm with a flow rate of 2.2 L h-1 and L2: 50 cm with a flow rate of 3.8 L h-1) and three dripper placement depths (including D1: 15 cm, D2: 25 cm and D3: 35 cm). In order to investigate the effect of different treatments on salinity distribution in the soil, soil samples were collected four and six months after the start of subsurface drip irrigation, from the soil around the drippers at different intervals. In order to investigate the salinity distribution pattern in the soil for different treatments, the contours of soil salinity profiles were drawn using Surfer 8.0 software.

Results and Discussion:

The results of the salinity distribution pattern showed that under the conditions of subsurface drip irrigation, the highest salinity was observed at the bottom of the furrow and in the upper layer of the soil on the mound. Six months after the start of subsurface drip irrigation, the salinity of the soil profile in all treatments increased compared to begging, so that the salinity of the area around the drippers in most of the treatments reached above 3 dS m-1. The highest amount of salinity at the upper soil layers was observed in D3L2 treatment. Also, the most favorable salinity distribution pattern in the root development area was observed in D2L1 treatment. Therefore, it can be concluded that the use of drippers at a depth of 25 cm with intervals of 30 cm and a flow rate of 2.2 L h-1 is more suitable for managing soil salinity due to less deep penetration compared to 35 cm-depth drippers, and also for lower evaporation from the soil surface compared to the 15 cm-depth drippers.

Ataee, A., Akbari, M., Neyshabouri, M. R., Zarehagi, D., & Onnabi Milani, A. (2019). Pistachio response to water and salinity distribution in surface and subsurface drip irrigation systems. Iranian Journal of Irrigation & Drainage13(1), 115-128. (In Persian)
Bouyoucos, G. J. (1961). Hydrometer method improved for making particle size analyses of soils. Agronomy Journal, 54, 464–465.
Carter, M. R., & Gregorich, E. G. (2007). Soil sampling and methods of analysis, 2nd edn. CRC Press, Boca Raton, FL.
Choudhary, A., Singh, A. K., Kumar, R., Kaswan, P. K., Singh, R., Godara, A. S., Kaledhonkar, M.J. & Meena, B. L. (2020). Performance of different varieties of groundnut under surface and subsurface drip irrigation using saline and good quality waters. Journal of Soil Salinity and Water Quality12(1), 65-69.
Díaz, F.J., Grattan, S.R., Reyes, J.A., de la Roza-Delgado, B., Benes, S.E., Jiménez, C., Dorta, M., & Tejedor, M. (2018). Using saline soil and marginal quality water to produce alfalfa in arid climates. Agricultural Water Management199, pp.11-21.
Fu, B., Li, Z., Gao, X., Wu, L., Lan, J., & Peng, W. (2021). Effects of subsurface drip irrigation on alfalfa (Medicago sativa L.) growth and soil microbial community structures in arid and semi-arid areas of northern China. Applied Soil Ecology159, 103859.
Grecco, K.L., de Miranda, J.H., Silveira, L.K., & van Genuchten, M.T. (2019). HYDRUS-2D simulations of water and potassium movement in drip irrigated tropical soil container cultivated with sugarcane. Agricultural Water Management, 221, 334-347.
Hanson, B., Hopmans, J.W. & Šimůnek, J. (2008). Leaching with subsurface drip irrigation under saline, shallow groundwater conditions. Vadose Zone Journal7(2), 810-818.
Jiawei, Y. A. O., Yongqing, Q. I., Huaihui, L. I., & Yanjun, S. H. E. N. (2021). Water saving potential and mechanisms of subsurface drip irrigation: A review. Chinese Journal of Eco-Agriculture, 2021, 29(6): 1076-1084.
Kermannezhad, J., & Ghanbari, E. (2019). Distribution of moisture and salinity in subsurface drip irrigation of sugarcane. Journal of Water Research in Agriculture33(3), 413-429. (In Persian)
Kong, Q., Li, G., Wang, Y., & Huo, H. (2012). Bell pepper response to surface and subsurface drip irrigation under different fertigation levels. Irrigation Science30(3), 233-245.
Mahmoudi, M., Khelil, M. N., Ghrib, R., Douh, B., & Boujelben, A. (2020). Assessment of growth and yield of okra (Abelmoschus esculentus) under surface and subsurface drip irrigation using treated waste water. International journal of recycling organic waste in agriculture9(4), 349-356.
Manikandan, M., & Thiyagarajan, G. (2021). Soil Moisture and Nutrient Patterns Under Subsurface Drip Irrigation for a Sustainable Sugarcane Initiative. In Fertigation Technologies for Micro Irrigated Crops (pp. 171-178). Apple Academic Press.
Martínez-Gimeno, M. A., Bonet, L., Provenzano, G., Badal, E., Intrigliolo, D. S., & Ballester, C. (2018). Assessment of yield and water productivity of clementine trees under surface and subsurface drip irrigation. Agricultural water management206, 209-216.
Mattar, M. A., Zin El-Abedin, T. K., Al-Ghobari, H. M., Alazba, A. A., & Elansary, H. O. (2021). Effects of different surface and subsurface drip irrigation levels on growth traits, tuber yield, and irrigation water use efficiency of potato crop. Irrigation Science39, 517-533.
Rafie, R. M., & El-Boraie, F. M., (2017). Effect of drip irrigation system on moisture and salt distribution patterns under north Sinai conditions. Egyptian Journal of Soil Science, 57(3), 247-260.
Rhoades, J. D. (1996). Salinity: Electerical conductivity and total dissolved solids. In Methods of Soil Analysis (Part 3). Edited by Sparks, D. L.. Soil Science Society of America Publishing: Madison, Wisconsin, USA.
Sheini-Dashtgol, A., Kermannezhad, J., Ghanbari-Adivi, E., & Hamoodi, M. (2022). Evaluating moisture distribution and salinity dynamics in sugarcane subsurface drip irrigation. Water Conservation Science and Engineering7(3), 227-245.
Taheri, M., Taheri, M., Abbasi, M., Mostafavi, K., & Vahedi, S. (2017). Patterns of soil salinity and sodium under surface and subsurface drip irrigation in olive trees. Irrigation and Water Engineering7(2), 127-141. (In Persian)
Thompson, T. L., Roberts, T., & Lazarovitch, N., (2010, August). Managing soil surface salinity with subsurface drip irrigation. In 19th World Congress of Soil Science, Soil Solutions for a Changing World. Brisbane, Australia
Wang, H., Wang, N., Quan, H., Zhang, F., Fan, J., Feng, H., Cheng, M., Liao, Z., Wang, X. and Xiang, Y. (2022). Yield and water productivity of crops, vegetables and fruits under subsurface drip irrigation: A global meta-analysis. Agricultural Water Management269, 107645.
Zaman, M., Shahid, S. A., & Heng, L. (2018). Irrigation systems and zones of salinity development. In Guideline for salinity assessment, mitigation and adaptation using nuclear and related techniques (pp. 91-111). Springer, Cham.