Energy options in weed control |
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Authors: | AR Rao VM Bhan |
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Affiliation: | 1. Haryana Agricultural University, Hisar—125004, India;3. Department of Veterinary Physiology India;4. Department of Agronomy India |
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Abstract: | Taking into account the energy costs of weedicide production, formulation, transportation and the fixed energy inputs through equipment on farms in Haryana and the man-days needed for weed control, the energy inputs in weed control by manual or chemical methods have been evaluated. Use of 2,4-D accounts for about 84 Mcal/ha of wheat or rice. Methabenzthiazuron as an alternative would account for the consumption of 248 Mcal/ha. Manual weeding in wheat accounts for 46 Mcal/ha and in a crop of rice for 54 Mcal/ha. Weed control, by whatever method, accounts for 0.5–2.7% of the energy inputs needed to raise a crop of wheat or rice in Haryana and is not a significant energy user. |
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