POTENTIAL OF THE RESIDUE FROM ETHANOL PRODUCTION OF SWEET POTATOES AS CONDITIONING OF FERTILITY OF CERRADO SOIL
DOI:
https://doi.org/10.36725/agries.v10i1.8660Keywords:
complementary fertilizer, organic fertilization, soil fertilityAbstract
The production of ethanol from sweet potatoes generates a large amount of waste. In this sense, this study
aimed to evaluate the potential of the residue of sweet potato ethanol production as a conditioner of soil fertility in the cerrado. The experiment was conducted under field conditions, the experiment area was 600 m2, after conventional soil tillage, the sweet potato crop (cultivar Bárbara) was planted. The experimental design was in randomized blocks with split-plots with four replications. Sweet potato residue was used instead of mineral fertilizer, using K+ as a reference. The mineral fertilization was 90 kg of K2O ha-1, using KCl as a source of potassium. The dosages of substitution of mineral fertilizer for organic fertilization were: 100% mineral fertilizer, 25% organic fertilizer, 50% organic fertilizer, 75% organic fertilizer and 100% organic fertilizer. Soil samples were collected in two seasons for evaluation of the season. The first harvest was during
cultivation and the second harvest after the sweet potato harvest. The samples were collected at depths of 20
and 40 cm. The results showed that organic fertilization presented few advantages in relation to soil mineral
fertilizer, and a longer time of soil use is necessary to evaluate the effect of organic fertilization. The residue
from the production of ethanol from sweet potatoes as a source of organic fertilization is a complementary
alternative to improve soil fertility.
Downloads
Published
Issue
Section
License
Copyright
Upon acceptance of a manuscript, authors will be asked to complete an "exclusive license" form that will allow the manuscript to be disclosed in the form of open access. In order to do the work of publishing and disseminating the research paper manuscript we need the rights to publish. For open access manuscripts, we use an exclusive licensing agreement where authors retain copyright from their manuscript.
In this agreement the authors retain rights to:
-Patents and other intellectual property rights in manuscript
-The right to credit for published work
