| Grant number: | 18/04612-4 |
| Support Opportunities: | Scholarships in Brazil - Scientific Initiation |
| Start date: | August 01, 2018 |
| End date: | July 31, 2020 |
| Field of knowledge: | Agronomical Sciences - Agronomy - Crop Science |
| Principal Investigator: | Pâmela Gomes Nakada Freitas |
| Grantee: | Thalita Helena Magalhães |
| Host Institution: | Faculdade de Ciências Agrárias e Tecnológicas. Universidade Estadual Paulista (UNESP). Campus de Dracena. Dracena , SP, Brazil |
Abstract It is necessary to preserve the environment for all generations of planet earth, because due to increase of carbon emission in the atmosphere, the temperature has increased, and intensified the problem of the greenhouse effect, which has injured the crops, with high temperatures, but also on unevenness and less precipitation. The crop in no-tillage contributes to the solution of this problem, because without soil rotation, there is no carbon release from the soil profile, in addition to reducing evapotranspiration. This management is already more studied in large crops, but still recent in vegetables, thus, it is aimed to implant vegetation cover in the production of cabbage and cucumber in no-tillage (SPDH) cultivation in the West region of São Paulo. The assay will be in a randomized complete block design, with subdivided plot and four replications. In the autumn-winter, the treatments will consist of three vegetation cover in the plots (lupine, black oats, 70% lupine + 30% black oats), and two cultivation systems in the subplot (no-tillage and conventional), after the development of plant cover until early flowering, the plants will be grazed, and subsequent transplanting of cabbage seedlings. In the spring-summer period, after harvesting the cabbage, the following parcels will be planted in the same plots: millet, millet, and the mixture of 70% of styles + 30% of millet, and in the subplots, the same soil preparation, and subsequent transplanting of cucumber seedlings. The soil characteristics to be evaluated will be: chemical attributes: pH, H + Al, Al, P, K, Ca, Mg, MO, CTC, SB, V%; physical attributes: granulometry (sand, silt, loam), soil gravimetric moisture, porosity (microporosity and macroporosity), soil density, soil resistance, water infiltration rate, aggregates; soil macrofauna and dry matter determination of plant coverings. The production characteristics to be evaluated will be: of the cabbage: diameter, height and fresh mass of the "head", and productivity; of cucumber: plant height, length, diameter and mass of fruits, number of fruits per plant, and productivity. The data will be submitted to analysis of variance, and when there is a significant difference, Tukey test will be applied to the vegetation cover, and t test for the planting systems, all at a 5% probability level. (AU) | |
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