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Mechanized and individualized application of N-P-K in combined operations in sugarcane
(2017-01-01)
A new concept of fertilizer machine is under development and shows as differential individually fertilizer application, that is sources of N, P and K are applied separately for the purpose of improving the distribution ...
Carbon fractions and stock in response to solid and fluid organomineral fertilizers in highly fertile soils
(Empresa Brasil Pesq Agropec, 2019-01-01)
The objective of this work was to evaluate the effect of the application of organomineral and mineral fertilizers to highly fertile soils on the carbon management index (CMI) and carbon fractions and stock. The experiment ...
Mortalidade, crescimento e solução do solo em eucalipto com aplicação de fertilizante de liberação lenta
(2015-07-01)
Fertilization is one of the most effective ways to increase crop productivity, and the use of slow release fertilizers could be advantageous, allowing the assimilation of nutrients as the plants grow. The objective was ...
Atributos químicos do solo sob plantio direto afetado por sistemas de culturas e fontes de adubação
(2011-10-01)
Crop systems and fertilization sources can affect the chemical properties of the soil and, consequently, its fertility. With the aim of evaluating the effect of such management practices, soil samples collected at 0.0-0.10; ...
Fertigation and gradual release of fertilizers for planting of sports turfgrassFertirrigação e fertilizantes de liberação gradual para a implantação de gramado esportivo
(2020-01-01)
Sports turfgrass requires care to show good development and playability. The type of fertilizer and the way of application of this fertilizer directly interfere with its quality. The objective of the present work was to ...
Soil fertility and agriculture yield with the application of organomineral or mineral fertilizers in solid and fluid forms
(Empresa Brasil Pesq Agropec, 2018-05-01)
The objective of this work was to evaluate the effects of organomineral and mineral fertilizers, in their solid and fluid forms, on soils with variable charges with high fertility built up from nitrogen, phosphorus, and ...
Phosphorus and potassium balance in soil under crop rotation and fertilization
(Universidade Estadual de Londrina (UEL), 2012-01-01)
The use of crop rotation and manure application can provide sustainability for an agricultural production system by improving soil quality and increasing nutrient use efficiency. This study aimed to evaluate the effect of ...
Soil P Diffusion and Availability Modified by Controlled-Release P Fertilizers
(Springer, 2020-11-24)
Slow-release fertilizers have been proposed as tools to increase P fertilizer use efficiency in tropical acidic soils with high P adsorption, low P availability, and mobility. However, results have been controversial since ...
Composted sewage sludge in replacement of mineral fertilization on wheat production and development
(2016-07-01)
Several research lines are required to ensure a proper disposal of sewage sludge in Brazil; among them, we may highlight agricultural use. In this sense, this study aimed at assessing the effect of exchanging nitrogen ...
Test procedure for variable rate fertilizer on coffee
(UNIV ESTADUAL MARINGA, PRO-REITORIA PESQUISA POS-GRADUACAO, 2010)
The objective was to develop and test a procedure for applying variable rates of fertilizers and evaluate yield response in coffee (Coffea arabica L.) with regard to the application of phosphorus and potassium. The work ...