Agricultural machinery includes tractors, power tillers, rotavators, and threshers which are used for activities like sowing, reaping, and fertilizer application. This machinery helps increase production, productivity, and profits. It increases efficiency compared to traditional methods and can help increase productivity by 30%. Using machinery also enables farmers to plant second or multiple crops. Key vendors of agricultural machinery include Mahindra & Mahindra, Sonalika, TAFE, and VST Tillers Tractors. The document provides subsidy amounts farmers receive for purchasing various machinery like tractors, power tillers, weed cutters, and rotavators.