Development and evaluation of boom automizer sprayer to control sunn pests in wheat production.
2009
Safari, Mahmud | Hedayati Pur, Abu Al-Fazl | Gerami, Karim | Haq Shenas, Mahdi
Spraying is one of the important operations in wheat production .If operation performes properly; the yield per hectare will be increase. The farmers use Lance sprayers, Micronair sprayers and Automizer sprayers to control sunn pests. In this study a boom automizer sprayer was developed and compared with conventional sprayers for removing of sunn pests in wheat production .The treatments included boom automizer sprayer, Lance sprayer, Automizer sprayer, and Micronair sprayer. Format of experimental design was Randomized Completed Block Design (RCBD) in three replications. Results showed that Boom automizer sprayer with 96.3% was more effective than other sprayers in terms of removing the sunn pests in 5% and 1% confidence levels. There was no significant different between sprayers in terms of theoretical and effective capacities. but the boom sprayers had the highest field efficiency. There was significant different between sprayers in terms of poisonous solution consumption per hectare and drift in 5% and 1% confidence levels. The highest and the least solution consumption was belong to Lance sprayer (572.2lit/ha) and micronair (11.4 lit/ha) respectively. Uniformity spraying was the best for micronair sprayer. Indeed, Lance sprayer wasn't evaluated because the surface of sensitive papers was wet completely. VMD and NMD were 388 micrometer and 286 micrometeror for micronair sprayer respectively, So Micronair sprayer was more uniform than other sprayers. Percent of crop crushing was low for all sprayers (3% average). Lance sprayer had the more crop crushing in comparison with other sprayers (3.6%). Boom automizer sprayer indicated more covergae and density (droplets per square cm) than other treatments.
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