Narrow rows reduce biomass and seed production of weeds and increase maize yield
Smallholder farmers in southern African countries rely primarily on cultural control and hoe weeding to combat weeds, but often times, they are unable to keep up with the weeding requirements of the crop because of its laboriousness, causing them to incur major yield losses. Optimisation of crop planting pattern could help to increase yield and suppress weeds and to reduce the critical period of weed control and the weeding requirements to attain maximum yield. Experiments were carried out in Zimbabwe during two growing seasons to assess the effect of maize density and spatial arrangement on crop yield, growth and seed production of weeds and to determine the critical period for weeding. Planting maize at 60 cm row distance achieved higher yields and better weed suppression than planting at 75 or 90 cm row distance. Increasing crop densities beyond the customary three to four plants m−2 gave modest reductions in weed biomass but also diminished crop yields, probably because of increased competition for water and nutrient resources. Maize planted in narrow rows (60 cm) intercepted more radiation and suffered less yield reduction from delaying hoe weeding than those planted in wider rows (75 or 90 cm), and the duration of the weed-free period required to attain maximum grain yield was 3 weeks shorter in the narrow spacing than that in the 75- and 90-cm row spacings. Weeding was more effective in curtailing weed seed production in the narrow row spatial arrangements than in the wide row planting. The results of these studies show that narrow row spacings may reduce weeding requirements and increase yields.


Possibly Related Threads...
Thread Author Replies Views Last Post
  Are There Tumeric Farmers in Nigeria Trimex 7 553 02-26-2018, 01:17 AM
Last Post: Henlus
  Raingun vs Drip Irrigation Manihot 3 304 01-06-2018, 12:20 AM
Last Post: Manger
  Green Tomato may Help Cure Cancer - Research Henlus 1 163 01-06-2018, 12:17 AM
Last Post: Manihot
  Selective herbicide for yam? FarmKing 0 197 12-15-2017, 07:44 PM
Last Post: FarmKing
  Keeping out Monkeys without Killing them John@ 4 1,344 12-08-2017, 08:56 PM
Last Post: Henlus
  Organic Farming: Cow's milk Prevents viral diseases In Crops Henlus 4 965 12-07-2017, 09:25 PM
Last Post: Henlus
  Organic Slug and Snail Control Using Beer and Cigarette FarmTech 0 181 12-01-2017, 02:22 AM
Last Post: FarmTech
  Banana and Plantain Farming: One Way to Increase Yield Henlus 0 182 11-28-2017, 12:34 AM
Last Post: Henlus
  Which Pre-emergence Herbicide 4 Cucumber Farm? John@ 6 622 11-04-2017, 07:45 PM
Last Post: Henlus
  Fungicides applied at bloom may reduce fruit set in grapes Henlus 2 314 11-04-2017, 07:40 PM
Last Post: Henlus

Users browsing this thread: 1 Guest(s)