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SERRA, A. P.; MARCHETTI, M. E.; DUPAS, E.; ENSINAS, S. C.; LOURENTE, E. R. P.; SILVA, E. F. da; ALMEIDA, R. G. de; CARDUCCI, C. E.; ALOVISI, A. M. T.. |
There is a concern about the growing population and limitation in natural resources which are taking the population to direct its agricultural systems into a more productive and efficient activity, looking to avoid a negative impact on the surrounding environment. The industry energy expended to produce nitrogen (N)-fertilizer is considered an indirect consumption of energy in agriculture, which is higher with an increasing forage yield. Nitrogen is the key nutrient associated with high-yielding production in forage grass and grain crops. The aim of this chapter is to introduce the best management practices (BMPs) for N-fertilizer application in forage grasses to improve N-use efficiency, since the most economical way to feed livestock is forage plants... |
Tipo: Capítulo em livro técnico (INFOTECA-E) |
Palavras-chave: N-fertilizer recovery; N-use efficiency; Brachiaria sp; Panicum Maximum; Soil fertility. |
Ano: 2018 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1102573 |
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SERRA, A. P.; MARCHETTI, M. E.; DUPAS, E.; CARDUCCI, C. E.; SILVA, E. F. da; PINHEIRO, E. R.. |
The aim in developing this work was to summarize information about phosphorus (P) limitation and dynamic in tropical soils for forage grasses production. The major idea is direct information about limited factors affecting P availability, dynamic of P fractionation, P pools, P forms, P use efficiency, and the 4R?s Nutrient Stewardship? for P-fertilizer in forage grasses. Organizing these sub-headings in a chapter can result in interesting of how P behaves under tropical soils, in order to take decision to manage P-fertilizer to accomplish forage grasses production with social, economic, and environmental benefits. As the most limiting nutrient in tropical soils, P-fertilizer in forage grasses can be more effective if the best management practices are... |
Tipo: Parte de livro |
Palavras-chave: P-use efficiency; Brachiaria sp; Panicum Maximum; Soil fertility; Stylosanthes. |
Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1102563 |
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ROSA, C. B. C. J.; MARCHETTI, M. E.; SERRA, A. P.; SOUZA, L. C. F. de; ENSINAS, S. C.; SILVA, E. F. da; LOURENTE, E. R. P.; DUPAS, E.; MORAES, E. M. V. de; MATTOS, F. A.; MARTINEZ, M. A.; CONRAD, V. do A.; EL KADRI, T. C.; JESUS, M. V.. |
The purpose of this research was to evaluate soybean agronomic traits performance under row spacing associated with NPK fertilizer. The experimental design was set up in a randomized complete block and the treatments were arranged with factorial concept, consisting of four NPK (02-20-18%) fertilizer rates (0; 200; 400 and 600 kg ha-1) and five row spacing (0.35; 0.45; 0.50; 0.60 and 0.70 m), with three replications. The measurements were performed in two consecutive cropping seasons. The following variables were determined: time of canopy closure; plant height; the height of the first pod insertion; number of pods per plant; number of branches per plant; number of grains per pod; 1000-grain weight; and grain yield. The narrow row spacing (below than 0.40... |
Tipo: Artigo de periódico |
Palavras-chave: Cropping season.; Glycine Max.; Soil fertility; Soil science.. |
Ano: 2016 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1065750 |
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