DIAGRAMATIC ANALYSIS OF PATTERNATOR READINGS FOR SPRAY VOLUME DISTRIBUTION PATTERN DETERMINATION OF A PROTOTYPE SELF-PROPELLED HERBICIDE BOOM SPRAYER
Author(s): Michael C. Amonye, Maiwada L. Suleiman, Abdullahi El-Okene, Usman S. Mohammed, Aminu Saleh, and Uche P. Chukwu
Volume/Issue: Volume 1 , Issue 1 (2021)
Hitherto, Nigerian farmers employ the Knapsack sprayer to apply herbicide on both small, medium and large scale farms. But its poor coverage and unsteady pressure amongst other demerits render it unsuitable for sized farms. Imported Self–Propelled Boom Sprayers come with large swath and efficiency but are very costly and inappropriate for Nigerian fragmented land-holdings. A Self-Propelled Cost-Effective Herbicide Boom Sprayer was designed at the Department of Agricultural and Bio- Resources Engineering, Ahmadu Bello University, Zaria. The Prototype was constructed using locally available materials; as an appropriate crop protection technology for medium and large scale farming in Nigeria. Chemical weed control achieves the highest value when the volumetric distribution of the spray is uniform. The operating conditions of the nozzles on the boom with respect to the height above target and pump pressure should yield uniform deposition on the area sprayed for desired effect. Column chart, graphs and histogram of the Coefficient of Variation were employed to analyse the Patternator readings and determine the Spray Volume Distribution Patterns at heights above target: (30 cm, 45 cm, and 60 cm) and pump pressures: (100 kPa, 200 kPa, and 300 kPa).The analysis indicate prototype archived the standard acceptable 15 % Coefficient of Variation at two settings: 1). 45 cm height with pressure of 100 kPa and 2). 45 cm height with pressure of 300 kPa. The first setting is recommended for the prototype deployment for herbicide application on soil and foliage.
Herbicide, Knapsack, Spray Volume, Boom Sprayer, Pump Pressure