The effect of microwave soil treatment on rice production under field conditions

Khan, Muhammad Jamal, Brodie, Graham, and Gupta, Dorin (2017) The effect of microwave soil treatment on rice production under field conditions. Transactions of the ASABE, 60 (2). pp. 517-525.

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Abstract

Interest in chemical-free weed management practices has increased to overcome herbicide resistance in sustainable crop production systems. In this study, we examined microwave (MW) irradiation as an alternative weed management strategy in a direct-seeded rice crop under field conditions. Pre-emergence MW irradiation (2.45 GHz, 600 W, 120 s) of the soil was assigned in a randomized complete block design with five replications. The projection of 560 J cm-2 of MW energy into the soil gave a temperature gradient of 80°C to 90°C in the top 5 to 6 cm, which induced a 70% to 80% reduction in weed establishment through the soil seedbank compared to the untreated control. Therefore, a 34% increase in the grain yield of rice (9.0 t ha-1) was achieved compared to the non-MW scenario (6.7 t ha-1). Microwave-based weed control could be effective in managing herbicide-resistant weed biotypes in cropping systems.

Item ID: 54186
Item Type: Article (Research - C1)
ISSN: 2151-0040
Funders: Rural Industries Research and Development Corporation (RIRDC)
Date Deposited: 19 Jun 2018 23:11
FoR Codes: 07 AGRICULTURAL AND VETERINARY SCIENCES > 0703 Crop and Pasture Production > 070308 Crop and Pasture Protection (Pests, Diseases and Weeds) @ 100%
SEO Codes: 82 PLANT PRODUCTION AND PLANT PRIMARY PRODUCTS > 8204 Summer Grains and Oilseeds > 820499 Summer Grains and Oilseeds not elsewhere classified @ 100%
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