Preparation of soil and landscape requirements table for Date palm to use in land suitability evaluation

Document Type : Complete scientific research article

Authors

1 Soil and Water Research Institute

2 -

Abstract

Background and objectives: Iran is one of the major date-producing countries and not only has a long history in this field, but also it currently has the second grade of Date production in the world. Therefore, the cultivation and production of Dates in Iran is of particular importance both nationally and for the inhabitants of the producing provinces. In this regard, planning for optimal utilization of production resources such as soil and lands for development of the yield in the country has a special place. Consequently, evaluation of land suitability and utilization of lands in proportion to their potential and capacity for specific land use seems an important solution. However, one of the necessities of land suitability assessment is to determine the crop requirements of the plants such as the status of the soil as a production bed. The objective of this study was to investigate the effect of soil characteristics on Date yield and their rating for use in land suitability evaluation studies.
Materials and methods: First, 91 palm Date orchards were selected with diversity of soil and yield in Kerman, Fars, Khuzestan, Hormozgan and Bushehr provinces, in each garden, a soil profile was studied and a land use questionnaire completed. Physicochemical and fertility analyses were carried out on the collected soil samples. Multivariate regression was investigated between yield as dependent variable and independent variables including salinity, percentage of exchangeable sodium, pH, gypsum, calcium carbonate equivalent, clay, sand, silt, gravel, available potassium and phosphorus by stepwise method. Then, by checking the relations of simple regression between the important and effective characteristics with yield, related equations and diagrams were drawn and the rating of land characteristics set. The proposed crop requirement table was evaluated and validated using soil and yield data of 20 orchards.
Results: Results showed that potassium, sand percentage, soil salinity, ESP and CaCO3 had the highest and soil organic carbon content and pH had the least variation. Maximum amount of lime and gypsum was 74 and 17% and soil texture varied from sandy to clay, respectively. Regression results showed that independent variables including soil salinity, ESP, CaCO3, gypsum, gravel, available potassium and phosphorus were effective on yield, respectively. The determination coefficient of multivariate regression indicated that the variables entered into the model can determine 79% of the variance related to the dependent variable. In simple regression equations, soil salinity, ESP, gypsum, CaCO3 and gravel had a decreasing effect and organic carbon, available phosphorus and potassium had increasing effect on yield. The highest contribution to the decline in Date yields was related to soil salinity, gravel, ESP and calcium carbonate.
Conclusion: The coefficient of determination between yield and soil index obtained from the proposed soil and landscape requirements table for the Date was about 0.79 which showed acceptable accuracy of the prepared table. Soil salinity, ESP, gypsum and calcium carbonate limit for Date palm were determined 8 dS/m, 12, 8 and 38 percent, respectively.

Keywords


1.Ammari, P. 2009. Grading of soil properties and crop requirements of walnut in East Azarbaijan Province. Soil and Water Research Institute, Technical Report No. 1429, 56p. (In Persian)
2.Belal, A.A., and Al-Ashri, K.M.A. 2011. GIS Based land evaluation in Baharyia Oasis, Western desert, Egypt. J. Soil Sci. Agric. Engin. 2: 1. 11-24.
3.Bouyoucos, G.J. 1962. Hydrometer method improved for making particle size analysis of soils. Agron. J. 54: 5. 464-465.
4.Dialami, H. 2017. Qualitative, quantitative and economic land suitability for cultivation of date palm hearts in the provinces of Khuzestan, Fars and Bushehr using multi-criteria evaluation methods and FAO. PhD Thesis. Agricultural faculty of Shahrekord University. 253p. (In Persian)
5.FAO statistic. 2017. Available: http// faostat.fao.org/ site/567/ default.aspx. 351p.
6.FAO. 1976. A Framework for Land Evaluation. FAO Soils Bulletin No. 32, Rome. 248p.
7.Farajnia, A., Yarahmadi, J., and Kanani Notash, K. 2012. Determination of crop requirements of grape for use in land suitability studies. Soil and Water Research Institute, Technical Report No. 1757, 42p. (In Persian)
8.Ghaemian, N. 2009. Classification ofsoil properties and almond crop requirements for preparation of baseline land suitability tables in West Azerbaijan Province. Soil and Water Research Institute, Technical Report No. 1430, 29p. (In Persian)
9.Ghaemian, N. 2010. Classification of soil properties and apple crop requirements for preparation of baseline land suitability tables in West Azerbaijan Province. Soil and Water Research Institute, Technical Report No. 1509, 36p. (In Persian)
10.Ghiasvand, A. 2012. Application of statistics and SPSS software in data analysis. Fourth Edition, Motafakeran Publishing, 282p. (In Persian)
11.Khalifa, M.E.A., and Samir, M.H.A.R. 2008. Land potentiality assessment, East El-Owienat area, Egypt. J. Agric. Environ. Sci. 7: 1. 149-171.
12.Knudsen, D., Peterson, G.A., and Pratt, P.F. 1982. Lithium, sodium, and potassium. In: Page A.L. (Ed.). Methods of Soil Analysis. Part 2: Chemical and Microbiological Properties. American Society of Agronomy and Soil Science Society of America, Madison, WI, USA. Pp: 225-246.
13.Metwaly, M.M.A., and El-Araby, A.M. 2011. Land suitability for some specific crops using remote sensing and GIS in El-Qaa plain, South Sinai, Egypt. J. Soil Sci. Agric. Engin. 2: 2. 227-238.
14.Ministry of Jihad-Agriculture. 2017. Agricultural Statistics. Deputy of Planning and Economics. Office of Statistics and Information Technology, Ministry of Jihad-Agricultur, Tehran. 392p.
15.Mostaan, A., Latifian, M., Torahi, A., Amani, M., Mohebbi, A.H., and Ali Hoori, M. 2017. Technical guide to planting, cultivation and harvesting dates. Horticultural Science Research Institute, Agricultural Education Publication. 146p. (In Persian)
16.Nelson, R.E. 1982. Carbonate and gypsum. In: Page A.L. (ed.). Methods of Soil Analysis. Part2: Chemical and Microbiological Properties. American Society of Agronomy and Soil Science Society of America, Madison, WI, USA. Pp: 181-197.
17.Peech, M. 1965. Hydrogen ion activity. In: Black, C.A. (ed.), Methods of soil analysis. Part 2: Chemical and Microbiological Properties. American Society of Agronomy and Soil Science Society of America, Madison, WI, USA. Pp: 914-926.
18.Pezhman, H. 2007. Guide date (plantation, cultivation, harvesting). Educational technology services bureau. 286p. (In Persian)
19.Rezaei, A., and Soltani, A. 2004. Introduction to Applied Regression Analysis. Second edition, Isfahan University of Technology Publications, 306p. (In Persian)
20.Roades, J.D. 1996. Salinity: electrical conductivity and total dissolved solids. In: Sparks, D.L. (ed.). Methods of Soil Analysis. Part 3: Chemical methods. American Society of Agronomy and Soil Science Society of America, Madison, WI, USA. Pp: 417-437.
21.Salah, A., Van Ranst, E., and Hisham, El. 2001. Land suitability assessment for date palm cultivation in the Eastern Nile delta, Egypt using an automated land evaluation system (ALES) and GIS. Second International Conference on Date Palm. 25-27 March. Al-Ain. UAE.
22.Servati, M. 2018. Efficiency of the ELECTRE Tri method in assessing the suitability of the Chaldoran area for potato cultivation. J. Water Soil Cons. 25: 1. 271-284. (In Persian)
23.Shahrokh, V., Ayoubi, Sh., and Jalalian, A. 2011. Qualititative, quantitative and economical land suitability evaluation for wheat and rice production and assessment of their environmental impacts in Zarrinshahr and Mobarakeh Isfahan Province. J. Water Soil Cons.8: 3. 37-60. (In Persian)
24.Sulieman, M.M., Ibrahim, I.S., and Elfaki, J. 2015. Land suitability characterization for crop and fruit production for some river Nile terraces, Khartoum, North Sudan. Inter. J. Sci. Res. Pub. 5: 10. 1-5.
25.Sys, C., Van Ranst, E., and Debaveye, J. 1991. Land Evaluation. Parts I and II: Principles in Land Evaluation and Crop Production Calculations. Agricultural Publications, No 7. General Administration for Development Cooperation, Brussels, Belgium.
26.USDA. 2014a. Keys to Soil Taxonomy. 12th edition, United States Department of Agriculture, National Soil Survey Center, Natural Resources Conservation Service. 372p.
27.USDA. 2012. Field Book for Describing and Sampling Soils. Version 3, Natural Resources Conservation Service, National Soil Survey Center, Lincoln, NE. 300p.
28.USDA. 2014b. Kellogg Soil Survey Laboratory Methods Manual. Soil Survey Investigations Report No. 42, Version 5. R. Burt and Soil SurveyStaff (eds.). United States Department
of Agriculture, Natural Resources Conservation Service. 1031p.
29.Wakley, A., and Black, I.A. 1934. An examination of degtjareff method for determining soil organic matter and a proposed modification of chromic acid method in soil analysis. Experimental Soil Science, 79: 459-465.
30.Zare Chahoki, M.A. 2014. Data analysis in natural resources research withSPSS software. Second Edition,Tehran Jihad-Daneshgahi Publications, 312p. (In Persian)
31.Zeinadini, A. 2014. Characteristics of some pistachio cultivated soils and determination of plant needs and land characteristics for pistachio plant in Kerman Province. PhD Thesis, Azad University, Science and Research Branch, Tehran. 283p. (In Persian)