Now showing items 1-10 of 11
Cotton response to mepiquat chloride and temperature
(Scientia Agricola, 2013-04-01) [Artigo]
Gibberellin inhibitor growth regulators are used for cotton (Gossypium hirsutum L.) canopy manipulation to avoid excess growth and yield losses. However, under temperatures below or over the optimum for cotton production ...
Formas de fósforo no solo após o cultivo de braquiária e tremoço branco
(Ciência Rural, 2013-08-01) [Artigo]
Phosphorus is one of the major factor that limits agricultural productivity in most tropical soils. The objective of this study was to assess P transformations and availability in a soil cropped to brachiaria (Urochloa ...
Upland rice growth and mineral nutrition as affected by cultivars and sulfur availability
(Soil Science Society of America Journal, 2013-01-01) [Artigo]
A better understanding of the differential growth of upland rice (Oryza sativa L.) cultivars with increasing soil S availability could help improve rice yield under upland conditions. The objective of this study was to ...
Phosphorus and potassium budget in the soil-plant system in crop rotations under no-till
(Soil and Tillage Research, 2013-01-01) [Artigo]
Soil management and crop rotations can affect P and K budget in soil, decreasing losses, and increasing fertilizer use efficiency. The P and K budget in the soil-plant system at depths up to 60. cm was studied for different ...
Soil nitrogen dynamics after Brachiaria desiccation
(Revista Brasileira de Ciência do Solo, 2013-12-01) [Artigo]
Brachiaria species, particularly B. humidicola, can synthesize and release compounds from their roots that inhibit nitrification, which can lead to changes in soil nitrogen (N) dynamics, mainly in N-poor soils. This may ...
Phosphorus and potassium balance in a corn-soybean rotation under no-till and chiseling
(Nutrient Cycling in Agroecosystems, 2013-05-01) [Artigo]
Nutrient use efficiency has become an important issue in agriculture, and crop rotations with deep vigorous rooted cover crops under no till may be an important tool in increasing nutrient conservation in agricultural ...
Carbohydrate production and transport in cotton cultivars grown under boron deficiency
(Scientia Agricola, 2013-01-01) [Artigo]
An adequate supply of boron (B) is required for the optimal growth and development of cotton (Gossypium hirsutum L.) plants, but the low phloem mobility of B limits the possibilities of correcting B deficiency. There are ...
Soil organic matter and physical attributes affected by crop rotation under no-till
(Soil Science Society of America Journal, 2013-09-01) [Artigo]
Growing cover crops in systems under no tillage affects different pools of soil organic matter, and eventually soil physical attributes are modified. The objective of this study was to evaluate changes in soil organic ...
Molybdenum and abscisic acid effects on cotton under high night temperature stress
(Summaries of Arkansas Cotton Research, 2013) [Artigo]
Ruzigrass affecting soil-phosphorus availability
(Pesquisa Agropecuária Brasileira, 2013-12-01) [Artigo]
The objective of this work was to evaluate the effectiveness of ruzigrass (Urochloaruziziensis) in enhancing soil-P availability in areas fertilized with soluble or reactive rock phosphates. The area had been cropped for ...