Soil compaction is commonly observed in cultivated no-tillage soils, and may cause reductions in crop yields due to limited root growth. This study aimed to evaluate the influence of different levels of soil compaction on wheat yield grown in an Oxisol (Nitossolo Vermelho distroférrico - Brazilian Soil Classification System). The experiment was conducted at the Experimental Station of the Federal Technological ...
The objective of this study was to identify nutritional deficiency of nitrogen in bean using spectral indices and techniques of digital image processing. For that it was developed artificial neural networks with different numbers of neurons. Following the acquisition of images by a digital camera, they were cut into blocks with size of 20x20 and 40x40 pixels. Artificial neural networks were able to identify the...
The adaptations of the soybean crop to a new environment as well as the need of a symbiotic relation among Bradyrhizobium bacteria and the commercial cultivars of soybean impose barriers to the grain productive process. The objective of this work was to evaluate the interaction of nodulation and the morphophysiological components over the final yield of soybean grains in the edaphoclimatical conditions of Recôn...