نویسندگان
1 استادیار پژوهش، بخش تحقیقات علوم زراعی-باغی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان اصفهان، سازمان تحقیقات، آموزش و ترویج کشاورزی، اصفهان، ایران.
2 استادیار پژوهش، بخش تحقیقات فنی و مهندسی کشاورزی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان اصفهان، سازمان تحقیقات، آموزش و ترویج کشاورزی، اصفهان، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Sustainable agriculture in each region relies heavily on monitoring production in that region to gain statistically accurate information. The present study was conducted in 2013‒2014 in Fereidan, Isfahan Province, to determine the actual yield (average yield in the area) and the easy access yield (yield by pioneering farmers in the region) in an attempt to estimate possible water savings. Based on the data collected through questionnaires from the statistical population studied, certified tuber seeds, disinfection of the tubers, and application of potassium fertilizers were identified as the major factors affecting agricultural production that had been duly observed by 43, 66, and 59%, respectively, of the beneficiary farmers in cultivating the Agria cultivar. The figures obtained for the same parameters in the case of the Marfona variety were 42, 65, and 74%, respectively. Results indicated that observing these three factors would lead to increases of 12.2 and 12.3 t ha‒1 in the actual yields of the two Agria and Marfona cultivars, respectively, while the practice would also prepare the grounds for achieving easy access yield. Based on actual yields of the Agria and Marfona cultivars, water productivity values were 2.95 and 2.56 kg m‒3, which will expectedly rise to 4.06 and 3.86 kg m‒3 if agricultural production in the region is raised to the easy access yield level. The net potato irrigation demand in Fereidan region was measured to be 5809 m3 ha‒1; this indicates an annual saving of 387200 m3 of water for the approximately 4,000 hectares under potato cultivation if proper agricultural practices are implemented and easy access yield is achieved in the region.
کلیدواژهها [English]
7. Allen RG, Pereira LS, Smith M, Raes D, and Wright JL (2005) FAO-56 dual crop coefficient method for estimating evaporation from soil and application extensions. Journal of Irrigation and Drainage Engineering 131: 2–13.
8. Carli C, Yuldashev F, Khalikov Condori B, Mares V, and Monneveux A (2014) Effects of different irrigation regimes on yield, water use efficiency and quality of potato in the lowlands of Tashkent, Uzbekistan: A field and modeling perspective. Field Crops Research 163:90-99.
9. Cassman KG, Dobermann A, Walters DT, and Yang HS (2003) Meeting cereal demand while protecting natural resources and improving environmental quality. Ann. Rev. Environ. Resour. 28:315-358.
10. De Box JA and Vander Want JPH (1987) Viruses of potato and seed potato production. Second edit Pub. Wageningen, Netherlands, 259p.
11. Doorenbos J, Pruitt WO (1992) Guideline for predicting crop water requirements. In: FAO Irrigation and Drainage Paper. Food and Agriculture Organization of the United Nations, Rome.
12. Food and Agriculture Organization (1998). Crop Evapotranspiration (Guidelines for Computing Crop Water Requirements), FAO Irrigation and Drainage Paper No.56.
13. Food and Agriculture Organization (2014) FAOSTAT, Retrieved January 12, 2014, from http://faostat.fao.org/site/291/default.aspx.
14. Hassanpanah D, Hosienzadeh AA, and Allahyari N (2009) Evaluation of planting date effects on yield and yield components of Savalan and Agria cultivars in Ardabil region. Journal of Food, Agriculture and Environment. 7:525-528.
15. Huber R (2010) Yield gap analysis of potato yield in Poland. Ms. Thesis Plant Production systems. 133 Pp.
16. Iwama K (2008) Physiology of the potato: new insights into root system and repercussions for crop management. Potato Research 51: 333-338.
17. Jiang Z, Huete AR, Chen J, Chen Y, Li J, Yan G, and Zhang X (2006) Analysis of NDVI and scaled difference vegetation index retrievals of vegetation fraction. Remote Sens. Environ 101:366-378.
18. Kato Y, Okami M, and Katsura K (2009) Yield potential and water use efficiency of aerobic rice (Oryza sativa L.) in Japan. Field Crops Research 113:328-334.
19. Koning N, and Van Itersum MK (2009) Will the world have enough to eat? Curr. Opin. Environ. Sustain. 1:77-82.
20. Lobell DB, Cassman KG, and Field CB (2009) Crop yield gaps: their importance magnitudes and causes. Ann. Rev. Environ. Resour. 34:179-204.
21. Penning de Vries FW, and Rabbinge R (1995) Models in research and education, planning and practice. In: Potato ecology and modeling of crops under conditions limiting growth. A.J. Haverkort and D.K.L. Mackerron (eds), Kluwer Academic Pub., Dordrecht, The Netherlands. 1-18.
22. Ramsey MH, Squire S, Gardner MJ (1999) Synthetic reference sampling target for the estimation of measurement uncertainty. Analyst, 124: 1701–1706.
23. Rashidi M, and Gholami M (2008) Review of crop water productivity values for tomato, potato, melon, watermelon and cantaloupe in Iran. International Journal of Agricultural and Biological Engineering, 10: 432-436.
24. Sadras V, Roger D, and Oleary G (2002) On-farm assessment of environmental and management constrains to wheat yield and efficiency in the use of rainfall in the Mallee. Aus. J. Agric. Res. 53:587-598.
25. Stengrobe B and Claassen N (2000) Potassium dynamics in the rhizosphere and K efficiency of crops. Journal of Plant Nutrition and Soil Science. 163:101-118.
26. Trehan SP and Sharma RC (2002) Potassium uptake efficiency of young plants of three potato cultivars as related to root and shoot parameters. Commun. Soil Sci. Plant Anal 33:13-18.
27. Van Itersum MK, Cassman KG, Grassini P, and Wolf J, Tittonell P, and Hochman Z (2013) Yield gap analysis with local to global relevance- A Review. Field Crop Res. 143:4-17.
28. Van Ittersum MK and Donatelli M (2003) Cropping system models: science, software and applications. Special issue Eur. J. Agron. 18, 187–393.