Journal of Researches in Mechanics of Agricultural Machinery

Journal of Researches in Mechanics of Agricultural Machinery

Comparing the performance of tractor mounted boom sprayer, knapsack atomizer and knapsack boom micronair and investigating their effect on the yield and yield components of corn

Document Type : Research Paper

Authors
Armin Kohan 1
Mohammad Reza Khaleghi Nejad 2
1 Department of Mechanical Engineering of Biosystems, College of Agriculture, Shoushtar Branch, Islamic Azad University, Shoushtar, Iran.
2 2. Graduated M.Sc. Student, Department of Agricultural Mechanization, College of Agriculture, Shoushtar Branch, Islamic Azad University, Shoushtar, Iran
10.22034/JRMAM.2024.14736.703
Abstract
The correct method of spraying herbicides is an important factor affecting weed control. In this regard, three types of herbicide sprayers including tractor mounted boom sprayer, knapsack atomizer and knapsack boom micronair were investigated to control weeds in the corn fields of Safiabad Agricultural Research Center, in Dezful, Iran. In order to compare the performance of these three sprayers, a randomized complete block design with five treatments and three replications was implemented. The treatments of this experiment included spraying by a mounted tractor boom sprayer, knapsack atomizer, knapsack boom micronair, and weeding by a human (first control), as well as no weeding and spraying (second control). After identifying the types of weeds in the field, nicosulfuron herbicide was applied. The results showed that the lowest means of weeds dry weight including Cleome viscosa, Corchorus olitorius, Cyperus rotundus, Physalis alkekengi and Convolvulus arvensis belonged to the micronair sprayer treatment with the values of 2.53, 2.92, 2.94, 1.43 and 1.92 g.m-2 respectively. The study of corn yield and yield components showed that among the spraying treatments, the highest mean of biological yield, number of corn plants per unit area, corn ear weight per unit area, number of seeds in a row of an ear, wood weight of an ear, thousand-seed weight, corn plant height, a corn ear weight and seed weight of an ear of corn belonged to micronair sprayer treatment with the values of 30 t.ha-1, 74000 plants per hectare, 12.93 t.ha-1, 36.3 seeds per row, 46 g, 415 g, 299 cm, 260 g and 216 g respectively.
Keywords
Mounted Tractor Boom Sprayer
Knapsack Atomizer
Knapsack Boom Micronair
Nicosulfuron Herbicide
Subjects
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