Evaluation of chemical attributes of soil under different management systems of sugarcane in an area of expansion

Regina Maria Quintão Lana,Thiago Prudente Siqueira,Ana Carolina Pereira De Vasconcelos,Adriane De Andrade Silva,Emmerson Rodrigues De Moraes,Lucas Oliveira Ribeiro Maia

doi:10.14393/bj-v32n3a2016-29819

Abstract

In the area of expansion, where if you have restriction on fertility, soil preparation has contributed considerably to the improvement of the physical, chemical and water conditions of soils and, consequently, to the proper development of culture of sugarcane. The aim of this study was to evaluate the effect of different management techniques on the availability of nutrients in soil in an area of expansion of sugarcane, formerly with Brachiaria decumbens , in the Cerrado region. The experiment was conducted using the CTC 2 variety at Jalles Machado mill in Goianesia, GO. The experiment was established in a randomized block design, with six treatments and four replications. Chemical attributes of soil were evaluated at depths of 0-20, 20-40 and 40-60 cm. Significant differences were found among depths for all analyzed attributes. Adopted management systems influenced chemical attributes and the availability of nutrients for plants. Invertion of soil through plowing and harrowing is extremely beneficial to carry out soil amendment in the first year of cultivation, improving the incorporation and effectiveness of the corrective. The adoption of no-tillage system did not prove to be the best option for the first year of sugarcane cultivation, hindering the incorporation of the corrective.

Highlights

Sugarcane is grown on large areas and it is among the most important crops in the world, due to its multiple use by various sectors
The sugarcane yield in the Cerrado region is lower than that recorded in São Paulo, which accounts for 53% of the area planted with sugarcane in the country
This study was conducted on the property of Jalles Machado SA mill, in Goianésia-GO, at coordinates 15°10'S latitude and 49°15' W longitude, at 640 m of altitude, in an area where previously over 10 years is grown with pasture with Brachiaria decumbens under extensive cultivation and no corrections

Summary

Introduction

Sugarcane is grown on large areas and it is among the most important crops in the world, due to its multiple use by various sectors. Worldwide, one can observe the concern regarding issues related to the environment. It is increasing the search for production technologies that enable the development of crops that provide food and energy with the lowest possible environmental impact. In this sense, sugarcane is a culture which produces per unit of area a large amount of biomass and it can be used to produce food and energy demand

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Methods

Conclusion