Sesame mechanical planting techniques based on combination of agricultural machinery and agronomy

Abstract

According to the technical difficulties of sesame mechanical planting,based on the idea of the combination of agricultural machinery and agronomy,the information collection of sesame mechanical planting was carried out in China. 7 sets of medium and small- sized practical mechanical equipment suitable for sesame planting were introduced,selected and reformed,and key technologies of sesame production mechanization were proposed. Results of mechanical planting showed that suitable row spacing of sesame machine sowing was 33. 3- 40. 0cm,appropriate seeding rate was 0. 3kg /666. 7m2. The practical herbicide was 99% acetochlor before seedling after sowing. The highest yield was 151. 0kg /666. 7m2,which occurred in the treatment of no- tillage,machine sowing and base application of compound fertilizer 25kg /666. 7m2and topdressing urea 5kg /666. 7m2. The yield increased 16. 25% with exempting tillage,machine sowing and straw returning treatment,compared with no- straw returning treatment. The yield of chemical thinning and singling was close to the artificial thinning and singling,but the chemical thinning and final singling could save the labor cost more than 100yuan /666. 7m2and could effectively control the weeds at seedling and seedling shortage. Nine times sesame mechanical planting and high- yield demonstration were carried out between 2009 and 2012. The average yield was 116. 3kg /666. 7m2and increased by 34. 2% compared with the non- demonstration areas.