Al- Adawi, S. S., and Reeder, R. C. 1996. Compaction and subsoiling effects on corn and soybean yield and soil physical properties. Trans. of the ASAE. 39 (5): 1641-1649.
2- Anon. 1996. Tillage and soil compaction in agriculture. J. of Water Soil Machine. 19 & 20, 21-31 (In Farsi)
3- Carr, M. K. V. and Dodds, S. M. 1983. Some effects of soil compaction on root growth and water use of lettuce. Experimental Agric. 19(2):17-130.
4- Cassel, D. K., and Edwards, E. C. 1985. Effects of subsoiling and irrigation on corn production. Soil Sci. Soc. Am. J. 49(4):996-1001.
تأثیر عملیات زیرشکن و دور آبیاری برخواص فیزیکی خاک و عملکرد چغندرقند
|
|
5- Cook, D. A., and R. K. Scatt. 1993. The sugar beet crop. Transelated by Koocheki, A. and A., Soltani in Persion, 1996. Jihad Univ. of Mashad. 200P (In Farsi).
6- Habibi, J. 2000. Effect of mechanical properties of Ahangari Khorasan subsoiler on draft resistance and physical properties of hardpan soil in Khuzestan. M. Sc. Thesis. Univ. of Tehran. Karaj. Iran. (In Farsi)
7- Hajabbasi, M. A., Mirlohi, A. F. and Sadrarhami, M. 1999. Tillage effects on some physical properties of soil and maize yield in Lavark research farm. J. Sci. and Tech. Agric. And Nat. Resour. 3, 13-24 (In Farsi).
8- Ibrahim, B. A. and Miller, D. E. 1989. Effect of subsoiling on yield and quality of corn and potato at two irrigation frequencies. Soil Sci. Soc. Am. J. 53(1):247-251.
9- Mckyes. E., Nego, S. Douglas, E. Taylor, F. and Raghavan, G. S. U. 1979. The effect of machinery traffic and tillage on the physical properties of clay and on yield of silage corn. J. Agric. Eng. Res. 24, 143-148.
10- Ngunjiri, G. M. N. and Siemens, J. C. 1995. Wheel traffic effects on corn growth. Trans. of the ASAE. 38(3):691-699.
11- Perumpral, J. V. 1987. Cone penetrometer applications: A review. Trans. of the ASAE. 30(4):939-944.
12- Raghavan, G. S. V., Mckyes, E., Gendrom, G. Borghum, B. and Lee, H. H. 1978. Effect of the soil compaction on the development and yield of corn (maize). Can. J. Plant Sci. 58, 435-443.
13- Slowinska- Jurkiewicz, A. 1994. Changes in structure and physical properties of soil during spring tillage operations. Soil and Tillage Res. 29, 397-407.
14- Smith, M. 1993. Cropwat. A computer program for irrigation planning and management. Irrigation and Drainage. Paper No. 46. FAO. Rome.
15-Solhjou, A. A., and Loghavi, M. 2000. Optimum moisture content for determination of cone index, with cone penetrometer. Iranian J. Agric. Eng. Res. 17, 43-50 (In Farsi)
16- Solhjou, A. A., and Niazi, J. 2001. Effect of subsoiling on soil physical properties and irrigated wheat yield. Iranian J. Agric. Eng. Res. 7, 65-68 (in Farsi).
17- Zand-Parsa, Sh. and Sepaskhah, A. R. 1996. Determination of potential evapotranspiration based on some measurable factors in cinoptic stations of Iran. Sixth National Seminar on Irrigation and Reduction of Evaporation. Shahid Bahonar Univ. Kerman. Iran, 18-30 (In Farsi).