Results 81 to 90 of about 5,332 (233)
Eficiência de fontes e doses de fósforo na alfafa e centrosema cultivadas em latossolo amarelo. [PDF]
, 2020 O objetivo deste trabalho foi avaliar a eficiência agronômica de fontes e doses de P na alfafa e na centrosema, cultivadas em casa de vegetação, em Latossolo Amarelo ...
MALAVOLTA, E. +2 more
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Pesquisa Agropecuária Tropical, 2007 <!-- @page { margin: 2cm } --> <p class="western" align="justify">Conduziu-se um experimento em casa de vegetação com solos de cinco locais da região dos cerrados: Latossolo Vermelho Amarelo Distrófico (LVAd), Argissolo Vermelho Amarelo ...
Huberto José Kliemann +1 more
doaj +1 more source
Journal of Sustainable Agriculture and Environment, Volume 5, Issue 2, June 2026.ABSTRACT Biochar provides multiple agronomic benefits, including carbon sequestration and reduced nutrient leaching. This study evaluated the effects of wood‐ and crab shell‐based biochar, enriched with cow urine or liquid seaweed extract, on soil nitrogen (N) dynamics and early spring wheat (Triticum aestivum) growth. Three experiments were conducted:
Tim Morcom +5 more
wiley +1 more source
Evaluation of manganese and iron availability in soils by a modified ion exchange resin method [PDF]
, 2004 [Resumo] A avaliação do método modificado da resina de troca de íons para extração de Mn e Fe dos solos foi o objetivo desta pesquisa. Foram utilizadas 44 amostras de solo, cujos teores de Mn variaram de baixos a altos e de Fe de médios a altos.
Abreu, Cleide Aparecida +2 more
core +1 more source
Fontes, doses e extratores de fósforo em alfafa e centrosema. [PDF]
, 2020 O objetivo deste trabalho foi estudar o efeito de quatro fontes e quatro doses de fósforo na produção de matéria seca e nos teores de P em alfafa e centrosema, cultivadas em vasos com Latossolo Vermelho-Amarelo distrófico, e avaliar a disponibilidade de ...
MALAVOLTA, E., MOREIRA, A.
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Science-based decision support for formulating crop fertilizer recommendations in sub-Saharan Africa [PDF]
, 2020 Open Access Article; Published online: 31 Jan 2020In sub-Saharan Africa, there is considerable spatial and temporal variability in relations between nutrient application and crop yield, due to varying inherent soil nutrients supply, soil moisture, crop ...
Andersson, Jens A. +11 more
core +1 more source
Cassava production systems optimized for double output: Seed‐cuttings and root yields
Agronomy Journal, Volume 118, Issue 3, May/June 2026.Abstract Cassava (Manihot esculenta Crantz) is a strategic crop for food security but continues to face major challenges related to low root yields and the lack of optimized systems for producing high‐quality seed‐cuttings. This study evaluated the effects of different planting densities, varieties, and agrochemical‐based seed‐cutting treatments ...
Marcos de Souza Campos +4 more
wiley +1 more source
Comparison of Resin, Mehlich-1 and Mehlich-3 extractants for phosphorus, in Coastal Tableland soils. [PDF]
, 2011 bitstream/CPATC-2010/21024/1/bp-44 ...
SOBRAL, L. F.
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Agronomy Journal, Volume 118, Issue 3, May/June 2026.Abstract Several nitrogen rate recommendation methods have been developed to help farmers fertilize close to the economic optimum N rate (EONR). The objectives of this study were to (i) evaluate a dynamic method (Adapt‐N) for N rate recommendations for maize (Zea mays L.) in Brazil relative to EONRs determined specifically for each trial and (ii ...
Rafael Otto +8 more
wiley +1 more source
, 1987 I submit herewith the annual report of the Agricultural and Forestry Experiment Station, School of Agriculture and Land Resources Management, University of Alaska Fairbanks, for the period ending December 31, 1987.
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