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 Author(s): BERNARDI, A. C. C.; CARVALHO, M. C. S.; POLIDORO, J. C.; BENITES, V. M. Potassium (K) fertilization is one of the most common nutrient inputs used by farmers to cultivate crops on Brazil?s highly weathered, low-fertile and acidic tropical soils. Soil K is typically classi... ... |
 Author(s): SILVA, D. V. da; OLIVEIRA, T. K. de; KUSDRA, J. F.; kÖLLIN, F. T.; LIMA, A. A. de; COSTA, K. B. A. da The objective of this work was to evaluate the dynamics of decomposition process of chopped secondary forest system, previously enriched with legumes Inga velutina Willd. and tryphnodendron pulcherrim... ... |
 Author(s): SPERA, S. T.; MAGALHÃES, C. A. de S.; DENARDIN, J. E.; TARDIN, F. D.; RAMOS JUNIOR, E. U.; CHITARRA, L. G. An important annual crops management system for carbon sequestration from the atmosphere is the crop livestock integrated system managed under no-tillage system. In the Brazilian state of Mato Grosso,... ... |
 Author(s): SILVA FILHO, J. L. da; BORIN, A. L. D. C.; FERREIRA, A. C. de B. No-tillage cotton systems require soil coverage with cover crop residue for a longer time due to the late cycle of cotton. However, decomposition rates may vary between cover crops, and the adjustment... ... |
 Author(s): LACERDA, M. C.; NASCENTE, A. S.; CARVALHO, M. da C. S.; MONDO, V. H. V. Increasing fertilizer rates at sowing can provide significant increases in grain yield in vegetable crops. However, very high rates can impair root development because of increased soil salinization i... ... |
 Evidence of limited carbon sequestration in soils under no-tillage systems in the Cerrado of Brazil. Author(s): CORBEELS, M.; MARCHAO, R. L.; SIQUEIRA NETO, M.; FERREIRA, E. G.; MADARI, B. E.; SCOPEL, E.; BRITO, O. R. Abstract: The Brazilian government aims at augmenting the area cropped under no-tillage (NT) from 32 to 40 million ha by 2020 as a means to mitigate CO2 emissions. We estimated soil carbon (C) sequest... ... |
 Author(s): LIMA, C. E. P.; GUEDES, I. M. R.; SILVA, J. da; ALCANTARA, F. A. de; MADEIRA, N. R.; CARVALHO, A. D. F. de; FONTENELLE, M. R. Vegetables productions systems are done normally with intense soil tillage causing a strong decline of soil quality. Use of conservation systems can be an alternative to recover this quality. In order... ... |
 Author(s): MOREIRA, S. G.; KIEHL, J. de C.; PROCHNOW, L. I.; PAULETTI, V.; MARTIN NETO, L.; RESENDE, A. V. de The effect of tillage system (NT-no tillage; CT-conventional tillage; MT-minimum tillage; and NT/scarification, every three years) on soybean nutrient availability and yield was evaluated on Oxisol af... ... |
 Author(s): CERDEIRA, A. L.; SOUZA, M. D. de; BOLONHEZI, D.; QUEIROZ, S. C. do N. de; FERRACINI, V. L.; LIGO, M. A. V.; PESSOA, M. C. P. Y.; SMITH JR, S. The Guarany aquifer located in South America has a dimension of approximately 1,200,000 Km2 and spreads to areas of eight Brazilian states plus parts of Argentina, Uruguay and Paraguay. The region of... ... |
 Author(s): MORO, E.; CRUSCIOL, C. A. C.; NASCENTE, A. S.; CANTARELLA, H. In no-tillage systems (NTS), biological activity and nitrification process in the soil are higher due to higher organic matter and moisture contents, resulting in higher levels of nitrate compared wit... ... |
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