Improved shield for knapsack sprayers

Osei-Bonsu, P.; Boateng, M. A.

2013

English

Crop production in developing countries is limited by the over dependence on inefficient tools for implementation of critical field operations such as weed control.. A knapsack shield that suits the spray pattern of a drift reduction off centre nozzle (AirMix. ®. Nozzle) was developed and tested in the forest zone of Ghana for herbicide weed control in cassava (Manihot esculenta). Paraquat was applied through the shield at a rate of 3 l/ha. The treatments were: i) spraying half row width with each pass, ii) spraying entire row width with a pass, iii) timely hand hoeing and iv) delayed hand hoeing. Weed control with the shield was effective and it resulted in similar cassava yields as timely hand hoeing.

Osei-Bonsu, P., & Boateng, M. A. (2013). Improved shield for knapsack sprayers.