Comparação entre extratores químicos de fósforo disponível. [PDF]
, 2014 Foram comparados três extratos quimicos de fósforo dispon¡vel em um Latossolo Vermelho-Escuro submetido a quatro tratamentos de adubação fosfatada (0, 150 e 450 mg de P/dm3 de solo).
ALCANTARA, R. M. C. M. de +2 more
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Minimum soil nutrient guidelines for turfgrass developed from Mehlich 3 soil test results
, 2016 Conventional soil nutrient guidelines are higher than needed to produce high quality turfgrass. Although there have been repeated calls for more turfgrass soil calibration research, it is not practical to conduct conventional soil test calibrations for this global crop. Turfgrass comprises more than 10 common species and hundreds of cultivars, grown in
Woods, Micah S +2 more
openaire +1 more source
Yield, foliar concentration, and efficiency of extractant solutions with boron application in a Xanthic Ferralsol cultivated with banana in Central Amazon. [PDF]
, 2014 Boron is known to play important role in the structure of cell wall, membranes, and membrane-associated functions in plants. In soil, the hot water B extraction method has been extensively used, however, difficulties with this procedure result in low ...
CASTRO, C. de +2 more
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Dynamics of Current and Residual Phosphorus in Tropical Acid Soil [PDF]
, 2005 The use of phosphate rocks (PRs) has been proposed as an agroeconomically sound alternative to the more expensive superphoshates particularly, for P 'recapitalization' based on their purportedly high residual effects in acid tropical soils.
Gikonyo, Esther Wakiuru
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, 2010 This publication is for the gardener who wants to gain a more thorough understanding of soil basics, including soil components, texture, structure, water permeability and chemistry.
Jahns, Thomas R.
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Métodos de análisis de elementos en suelos: disponibilidad y fraccionamiento [PDF]
, 2009 En este trabajo se presenta una revisión de los métodos de análisis de elementos metálicos, principalmente de Cu y de Zn en suelos agrícolas, destacando los más utilizados. Algunos de los métodos descritos tienen un campo de aplicación mayor, empleándose
Almendros García, Patricia +2 more
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An assessment of phosphorus soil tests for some tropical acid soils in Southern Thailand [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2005 Phosphorus deficiency is a major problem for tropical acid soils in southern Thailand, thus P fertilizer and lime are usually applied to soils to improve crop yield.
Nilnond, C., Leowarin, W., Maneepong, S.
doaj
The Nitrogen Fertilizer Value of Baled Broiler Litter for Cotton Production in the Arkansas Delta [PDF]
The export of poultry litter by baling efficiently packages litter for long-term storage and transportation. Use of baled poultry litter to supply the recommended rates of P and K and a portion of the N rate appears to be a feasible nutrient management ...
Goodwin, Harold L., Jr. +2 more
core +1 more source
Residual zinc forms in weakly acidic and calcareous soil after and oilseed flax crop [PDF]
, 2008 The different chemical forms of Zn found in soils exhibit different levels of reactivity, solubility and availability to plants. Sequential extraction procedures (SEP) are applied in soils to partition metal into operationally-defined geochemical ...
Almendros García, Patricia +3 more
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Relação entre o zinco "disponível", por diferentes extratores, e as frações de zinco em amostras de solos. [PDF]
, 2018 Para determinar o zinco "disponivel" do solo para plantas, varios procedimentos de extracao tem sido desenvolvidos. Uma alternativa utilizada no estudo de extratores do Zn "disponivel" refere-se ao fracionamento do Zn total de solo, com vistas em ...
ALVES, V. M. C. +4 more
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