Growth and yield of sugarcane planted in two planting systems

• Grant number: 19/07702-7
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date until: September 01, 2019
• End date until: July 31, 2020
• Field of knowledge: Agronomical Sciences - Agronomy - Crop Science
• Principal Investigator: Alexandre Barcellos Dalri
• Grantee: Fernando de Oliveira Turci Sandrini
• Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil

Abstract

The multiplication of sugarcane has always been made by burying the stems in the soil. For this activity significant amounts of sugarcane are needed in planting. With the mechanization of the planting, it was necessary to increase the density of stems in the planting of the sugarcane, due mainly to the injuries caused in the sugarcane planter. Spending on cane stalks reach values higher than 20 Mg ha-1 and this high amount of planted seedlings has the intention to avoid planting failures and consequently, reduction in productivity. To reduce consumption of stalks in planting the crop and increase the multiplication rate, created the planting system of pre-sprouted plantlets. The pre-sprouted plantlets (PSP) production system consists in the formation of plants of the sugarcane, coming from gems contained in the nodes of the stalks. The PSP planting system was directed to increase efficiency, as well as economic gains in the renewal and expansion of sugarcane areas. The main objective of the present proposal will be to evaluate the growth, agronomic development, technological quality and productivity of three sugarcane cultivars planted by stalks and pre-sprouted plantlets (PSP). The experiment will be conducted in the experimental area of FCAV, UNESP, Jaboticabal, SP, Brazil. The experiment will consist of two factors: cultivar and planting system, arranged in a randomized block design in the factorial scheme, with four replications. The plots will consist of four lines of sugarcane, which will have five meters long. Three cultivars (CTC 20, CTC 9001 and RB 966928) will be analyzed and two sugarcane planting methods: conventional and PSP. Sugarcane biometry, productivity and technological quality will be evaluated. It is expected that biometric results, productivity and technological quality will be favorable when the planting is carried out in the PSP system.