The effect of planting date on weed management in potato

Articles in Press

Document Type : Research Paper

Authors

1 Former M.Sc. Student of agroecology, Department of Production Engineering and Plant Genetics, Razi University

2 Razi University, Agriculture and Natural Resources Campus, Department of Plant Genetics and Production

3 Research trainer of Agricultural and Natural Resources Research Center of Kermanshah Province, Advisor of Kermanshah Science & Technology Park, and Advisor of Kermanshah Province Entrepreneurship Center

10.22034/saps.2025.65029.3324

Abstract

Planting date of potato not only plays an important role in weed management through affecting competition, the control methods effectiveness, and economic considerations, but also can help farmers optimize their planting programs to increase crop yield and reduce weed-related challenges. This experiment was conducted as a factorial experiment in a randomized complete block design with 3 replications in the 2018-2019 crop season at the Razi University agricultural research farms. The factors were included as the planting date at 4 levels including: November 10, March 10, April 10 and May 10 and the second factor included two potato cultivars, Sante and Marfona. The results showed that the effect of sowing date on weed density (P≤0.01) and biomass (P≤0.05) was significant, The results also showed that the weed competition ability of Sante cultivar was higher than Marfona cultivar relatevely The results also showed that the accumulation of autumn and spring rains and the presence of different types of weeds that germinate in autumn resulted in the higher biomass weight (2975.6 g/m2) and weed density (77.8 plants/m2) in the November sowing date probably. However, the purchase price of seed tubers in November is much cheaper than the price of seed tubers in spring, and saving water will indirectly reduce fuel and labor costs in autumn planting.

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Journal of Agricultural Science and Sustainable Production

Articles in Press, Accepted Manuscript
Available Online from 20 January 2027

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