Limiting Nutrient
Mostrando 1-12 de 202 artigos, teses e dissertações.
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1. Seasonal Variation of Plant Mineral Nutrition in Fruit Trees
Abstract This research evaluated the monthly variation of plant mineral nutrition in six species of fruit trees over a year. Leaf samples were taken from the fruit trees and nutritional status (N, P, K, Ca, Mg, Fe, Zn, Cu, Mn, and Mo) was determined in the leaves in a month basis from April until November for apple, persimmon and peach. Mandarin mineral nutr
Braz. arch. biol. technol.. Publicado em: 24/10/2019
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2. Multivariate analysis in the evaluation of soil attributes in areas under different uses in the region of Humaitá, AM
Resumo O reconhecimento da influência das práticas de manejo nas condições físicas e químicas do solo é substancial para a agricultura sustentável. Por essa razão, o estudo foi desenvolvido com o objetivo de avaliar o comportamento de atributos do solo sob diferentes usos na região de Humaitá, AM, utilizando métodos estatísticos multivariados. O
Rev. Ambient. Água. Publicado em: 03/10/2019
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3. Growth and chlorophyll in noni seedlings irrigated with saline water in substrate with vermicompost
RESUMO A irrigação é um fator limitante para o desenvolvimento das culturas, e todas as fontes de água contem sais, podendo acumular-se no solo e na planta, comprometendo seu desenvolvimento. Dentre algumas alternativas para atenuar os efeitos negativos dos sais nos vegetais está a utilização de vermicomposto, sendo este um adubo orgânico condicionad
Rev. bras. eng. agríc. ambient.. Publicado em: 15/07/2019
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4. Challenges of beef cattle production from tropical pastures
ABSTRACT The live weight gain of cattle on tropical pastures is reviewed and found to be low and dependent on the length of the growing season. Supplements may be added to address the primary limiting nutrient, which, in the dry season, is crude protein. The response relationships of live weight gain to level of supplement (protein or energy) that have been
R. Bras. Zootec.. Publicado em: 25/06/2018
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5. Physiological Responses to Hypoxia and Manganese in Eucalyptus Clones with Differential Tolerance to Vale do Rio Doce Shoot Dieback
ABSTRACT: Vale do Rio Doce shoot dieback (VRDSD) is an anomaly whose cause seems to be associated with hypoxic conditions and their consequences (excess Mn and Fe) triggered by elevation of the water table in areas with poor drainage. Different plants have distinct survival strategies under this form of stress. The objective of this study was to understand t
Rev. Bras. Ciênc. Solo. Publicado em: 01/02/2018
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6. Effect of Harvest Time and Nitrogen Doses on Cassava Root Yield and Quality
ABSTRACT Nitrogen is considered the most limiting nutrient for cassava, and N availability can influence the crop cycle, including earlier harvest. The aim of this study was to study the effect of harvest time on the production components of cassava, “Aciolina” cultivar, at different rates of N fertiliser. The experiment was carried out in an area newly
Rev. Bras. Ciênc. Solo. Publicado em: 22/06/2017
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7. Boundary Line Model to Estimate the Nutrient Sufficiency Range in Muskmelon Leaves
ABSTRACT: The boundary line is a method frequently used to assess the nutritional status of plants when the relationship between the variables under analysis is influenced by other interacting factors. The objective of this study was to propose and test the boundary line model to estimate the nutrient sufficiency range and nutritional status of irrigated mus
Rev. Bras. Ciênc. Solo. Publicado em: 15/12/2016
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8. Effect of calcium salts of fatty acids on the nutritive value of diets, feeding behavior, and serum blood parameters of lactating Saanen goats grazing on stargrass
ABSTRACT The objective of this study was to determine effects of the addition of calcium salts of fatty acids (CSFA) to the concentrate on the intake and digestibility of dry matter and nutrients and the grazing behavior of lactating Saanen goats. Five multiparous goats in their third lactation and four primiparous goats were used. The animals were distribut
R. Bras. Zootec.. Publicado em: 2016-08
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9. Diagnostic Methods to Assess the Nutritional Status of the Carrot Crop
ABSTRACT Leaf analysis may identify nutrient deficiency or excess in plant tissue. The aim of this study was to determine reference values and generate nutritional diagnosis from the results of leaf analysis of the carrot crop (Daucus carota L.) by the methods of Critical Level, Sufficiency Range, Diagnosis and Recommendation Integrated System, and Compositi
Rev. Bras. Ciênc. Solo. Publicado em: 31/05/2016
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10. Phosphorus Forms in Ultisol Submitted to Burning and Trituration of Vegetation in Eastern Amazon
ABSTRACT The use of fire to prepare agricultural areas is a technique still used by small farmers in eastern Amazon. This type of management changes the dynamics of soil nutrients, especially phosphorus, which constitutes the most limiting nutrient for crop production in tropical soils. This study was carried out to evaluate changes in phosphorus forms in an
Rev. Bras. Ciênc. Solo. Publicado em: 26/04/2016
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11. Annatto seed residue (Bixa orellana L.): nutritional quality
Considering that annatto seeds are rich in protein, the present work aimed to evaluate the biological quality of this nutrient in the meal residue originating from annatto seed processing. We determined the general composition, mineral levels, amino acid composition and chemical scores, antinutritional factors, and protein quality using biological assays. Th
Food Sci. Technol. Publicado em: 2015-04
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12. Cgl-SLT2 is required for appressorium formation, sporulation and pathogenicity in Colletotrichum gloeosporioide
The mitogen-activated protein (MAP) kinase pathways has been implicated in the pathogenicity of various pathogenic fungi and plays important roles in regulating pathogenicity-related morphogenesis. This work describes the isolation and characterization of MAP kinase gene, Cgl-SLT2, from Colletotrichum gloeosporioides. A DNA sequence, including 1,633 bp of Cg
Braz. J. Microbiol.. Publicado em: 2013-12