Category: Crop Protection & Plant Health

Important use of herbicides

Important use of herbicides

Herbicides are chemicals that kill or inhibit the growth of unwanted vegetation such as weeds in crops or lawns. Herbicides are classified into two groups according to how they act and what they kill. They are selective and non-selective herbicides. Selective herbicides kill only certain types of plants, whereas non-selective herbicides kill all vegetation. Frequent tilling exposes land to erosion by wind, sun and running water. Soil micro-organisms are destroyed by exposure to the sun radiation and deleterious drying of the soil. Soil inversion enhances the decomposition of organic matter in the soil through oxidation and leads to soil compaction, and increased water evaporation. This can be countered by use of herbicides which will delay growth of weeds and reduces or eliminates competition of nutrients and sunshine from the weeds. With minimum tillage, use of herbicides reduces labour cost by half cutting down the cost of farming. Use of pre and post herbicides has been shown to reduce the time taken to prepare land by 15%. The pre-plant glyphosate spray increases the yield of no-till maize by 13% and with cost reduction and increased net income by 24% in comparison to manual weeding. The ease availability of glyphosate has been the driving force behind increased adoption of no-till among small-scale farmers in Africa. Maliza 480 SL is a non selective herbicide which can be used with minimum tillage to reduce the cost of farm inputs and increase yields. Use of Maliza 480 SL, will also facilitate conservation of soil making it easier for immediate reuse of the land for the next crop. Maliza 480 SL comes in 250 mls, 500 mls, 1liter, 5 liters and 20 liters packs with very competitive pricing.

References

  • Fowler, R., and J. Rockstrom. 2001. Conservation tillage for sustainable agriculture: An agrarian revolution gathers momentum in Africa. Soil & Tillage Research. 61:93-107.
  • Ekboir, J., et al. 2002 Impact of No-Till Technologies in Ghana. CIMMYT. Economics Program Paper 02-01.
  • Andersson, J. A., and S. D’Souza. 2014. From adoption claims to understanding farmers and contexts: A literature review of Conservation Agriculture (CA) adoption among smallholder farmers in southern Africa. Agriculture, Ecosystems and Environment. 187:116-132.
  • Muoni, T., et al. 2013. Weed control in conservation agriculture systems of Zimbabwe: Identifying economical best strategies. Crop Protection. 53:23-28.

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