To fertirrigation with residual water as to vinasse it can be a viable alternative for nutrition and water supply for Sugarcane. In this sense, or present study as objective, a descriptive analysis on the production of the Sugarcane during 5 harvests in the function of the application of vinasse in a non-Southwest Goiano energy industry. There were pigtails given from the productivity of forty plots different cultivated with sugar cane for 5 years (crops 14/15; 15/16; 16/17; 17/18; 18/19), in each crop were selected four areas with 2nd crops; 3rd; 4th and 5th in the condition of drying and fertigation with vinasse. You are given were analyzed by means of descriptive statistic in the electronic spreadsheet (Excel) with a reliability level of 95%, it was calculated on the average for the cuts and the subsequent calculation or deviation pattern, the were results presented in tables and figures. Comparing the fertirrigated areas with vinasse and dryland, the fertirrigated areas will present higher average producís to the dryland in 7.51; 12.48; 15.29 and 16.43% for the 2nd, 3rd, 4th and 5th cut, respectively. Fertigation with vinasse promotes productivity increases for the 2nd, 3rd, 4th and 5th cut in relation to the rainfed condition. To sugar cane. The vinasse used via fertigation is recommended to suppress the hydric and nutrient needs, it is essential not to grow sugarcane.
Eficiência de distribuição do sistema de irrigação, por meio de um veículo aéreo não tripulado de baixo custo Efficiency of irrigation system distribution through a low-cost unmanned aerial vehicle
Study of the mechanical characteristics of agricultural products is crucial to the development of equipment that can achieve the maximum efficiency without compromising the final product quality. Seeds crack and break when exposed to stresses that exceed their resistance to rupture. In this study, we aim to assess the mechanical properties of saccharine sorghum (Sorghum bicolor L. Moench) seeds at different moisture contents. The seeds were harvested in the municipality of Santa Helena-GO, Brazil and indicated an initial moisture content of 0.307 (d.b.). For each moisture content obtained (0.307, 0.258, 0.212, 0.170, 0.130, and 0.093 d.b.), samples were homogenized and subsequently analyzed. Compressive tests were performed through uniaxial tests in a sample of 15 seeds for each moisture content. In these tests, the "TA Hdi Texture Analyzer" universal testing machine was used, with a 250-N compression load cell. Our results indicated that the compressive force required to deform saccharine sorghum seeds decreased with increasing moisture content, whereas values of proportional modulus of deformity increased with both reduced moisture content and deformation. In addition, the reduction in moisture content caused an increase in the force required to rupture the seeds.
The Brazilian Cerrado biome provides relevant ecosystem services for Brazil and South America, being strategic for the planning and management of water resources as well as for agribusiness. The objective was to evaluate the water quality along the course of the Córrego da Formiga in a virgin portion of the Brazilian Cerrado, the relationship of land use with physical-chemical and biological parameters of the water, and the inflow of the tributary. Five water collection points were defined (between the source and mouth) and observed on a quarterly scale in 2015, water samples were collected and analyzed for physical-chemical and biological parameters in the laboratory, and flow measurements were performed at the same point and day of water collection. To identify and quantify land use and land cover (LULC) in the watershed, an image from the Landsat8-OLI satellite was obtained, and other geomorphological data from hypsometry (Topodata-INPE) were obtained to generate the slope, basin delimitation, and contribution area for each water collection point. The LULC percentages for each area of contribution to the water collection points were correlated with the physical-chemical and biological parameters of the water and submitted to multivariate analysis (PLS-DA) for analysis and grouping among the five analyzed points. Changes in water-quality patterns were more pronounced concerning the time when the first and last sampling was performed (rainy period) and may be influenced by the increase in the volume of water in these periods. The stream flow is highly variable over time and between points, with the lowest recorded flow being 0.1 L s−1 (P1) and the highest being 947.80 L s−1 (P5). Córrego da Formiga has class III water quality (CONAMA resolution 357), which characterizes small restrictions on the use of water for multiple uses. The soil cover with native vegetation is just over 12%, while the predominance was of the classes of sugar cane (62.42%) and pasture (19.33%). The PLS-DA analysis allowed separating the water analysis points between P1, P2, P3, and P5, while P4 was superimposed on others. It was also possible to verify that the parameters that weighed the most for this separation of water quality were pH, alkalinity_T, alkalinity_h, calcium, and hardness, all with a tendency to increase concentration from the source (P1) to the mouth (P5). As for water quality, it was also possible to verify that points P2 and P5 presented better water-quality conditions.
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