Abbaspour-Fard, M. H., Hoseini, S. A., Aghkhani, M. H., & Sharifi, A. (2014). The behavior of tillage tools with acute and obtuse lift angles. Spanish Journal of Agricultural Research, 12(1), 44-51.
Arvidsson, J., & Hillerström, O. (2010). Specific draught, soil fragmentation and straw incorporation for different tine and share types. Soil & Tillage Research, 110, 154-160.
Busari, M. A., Kukal, S. S., Kaur, A., Bhatt, R., & Dulazi, A. A. (2015). Conservation tillage impacts on soil, crop and the environment. International Soil and Water Conservation Research, 3(2), 119-129.
Eshaghbagi, A., Tabatabaeifar, A., Kayhani, A., Raoufat, M.H. (2004). The effect of depth and angle of attack on the pull resistance of the subsoiler with a bent blade. Journal of Agricultural Science of Iran. Volume 36, Number 4, (1045-1052). (In Farsi)
Godwin, R. J. (2007). A review of the effect of implement geometry on soil failure and implement forces. Soil & Tillage Research, 97, 331-340.
Godwin, R. J., & Spoor, G. (1977). Soil failure with narrow tines. Agricultural Engineering Research, 22, 213-228.
Hemat, A., Mosadeghi, M. (2000). Tillage for crop production in low rainfall areas. Tehran. Agricultural Research and Training Organization. (In Farsi).
Jafari, R., Raoufat, M. H., & Hashjin, T. T. (2008). Soil-Bin Performance of a Modified Bent Leg Plow. Applied engineering in agriculture, 24(3), 301-307.
Jalali, A., Mahmoudi, A., Valizadeh, M., Skandari., I. (2014). The effect of conservation tillage forward speed and depth on farm fuel consumption. Journal of Agricultural Machinery. Vol. 5, No. 2, p. 325-335.
Khalilian, A., Garner, T. H., Musen, H. L., Dodd, R. B., & Hale, S. A. (1988). Energy for conservation tillage in Coastal Plain soils. Transactions of the ASAE, 31(5), 1333-1337.
Loghavi, M., Ashrafi zade, S.R. (1997). Pull resistance, special resistance and power requirements for chisel at different levels of soil moisture and plowing depth. Journal of Agricultural Sciences and Natural Resources. No 2. p 85- 95. (In Farsi).
Manuwa, S. I. (2009). Performance evaluation of tillage tines operating under different depths in a sandy clay loam soil. Soil and tillage research, 103(2), 399-405.
McKyes, E., & Maswaure, J. (1997). Effect of design parameters of flat tillage tools on loosening of a clay soil. Soil and Tillage Research, 43(3-4), 195-204.
Mouazen, A. M., & Nemenyi, M. (1999). Tillage tool design by the finite element method: Part 1. finite element modelling of soil plastic behaviour. Journal of Agricultural Engineering Research, 72(1), 37-51.
Ranjbarian, S., Askari, M., & Jannatkhah, J. (2017). Performance of tractor and tillage implements in clay soil. Journal of the Saudi Society of Agricultural Sciences, 16(2), 154-162.
Row, R., & Barnes, K. (1961). Influence of speed on elements of draft of a tillage tool. Transactions of the ASAE, 4, 55-57.
Salar, M.R., Eshaghbagi, A., & Hemmat, A. (2013). Soil loosening characteristics of a dual bent blade subsurface tillage implement. Soil & Tillage Research, 134, 17-24.
Shao, Y., Xie, Y., Wang, C., Yue, J., Yao, Y., Li, X., Liu, W., Zhu, Y., & Guo, T. (2016). Effects of different soil conservation tillage approaches on soil nutrients, water use and wheat-maize yield in rainfed dry-land regions of North China. European Journal of Agronomy, 81, 37-45.
Soltani ghalegughi, A., Loghavi, M. (2007). The effect of axial load and pull load on the landing efficiency and fuel consumption of two heavy-duty tractors in the semi mounted moldboard plow. Journal of Agricultural Science and Technology. No 40, p 125-135.
Summers, J. D., Khalilian, A., & Batchelder, D.G. (1986). Draft relationships for primary tillage in Oklahama soils. Transactions of the ASAE, 29(1),37-39.