Export Of Nutrients
Mostrando 1-12 de 16 artigos, teses e dissertações.
-
1. Content, extraction and export of nutrients in sugarcane under salinity and leaching fraction
RESUMO Objetivou-se avaliar o teor dos macronutrientes e também o teor de cloro e sódio, na folha diagnóstico, e a extração e a exportação dos macronutrientes, em cana-de-açúcar irrigada com águas salinas e frações de lixiviação. Utilizou-se delineamento inteiramente casualizado em esquema fatorial 5 x 2, com quatro repetições, cinco níveis
Rev. bras. eng. agríc. ambient.. Publicado em: 01/07/2019
-
2. Manejo da biomassa e sustentabilidade nutricional em povoamentos de Eucalyptus spp. em pequenas propriedades rurais
Resumo O estudo foi realizado com o objetivo de subsidiar práticas de manejo nutricional de povoamentos de Eucalyptus spp. em pequenas propriedades rurais no estado do Rio Grande do Sul. Foram avaliados povoamentos de 2, 4, 6 e 8 anos de idade, com amostragem de 24 árvores e determinação da biomassa e nutrientes nos componentes: folha, galho vivo, galho
Ciênc. Florest.. Publicado em: 30/05/2019
-
3. Accumulation and export of nutrients in cactus pear cladodes (Opuntia ficus-indica) under different managements in the Brazilian Semiarid
ABSTRACT The present study evaluated the accumulation and export of nutrients in cactus pear (Opuntia ficus-indica) cv. Gigante, fertilized with combinations of nitrogen (10, 70, 100, 130, and 190 kg ha−1 year−1 N) and phosphorus (10, 70, 100, 130, and 190 kg ha−1 year−1 P2O5) under annual and biennial harvests, in Quixadá and Tejuçuoca, using a sp
R. Bras. Zootec.. Publicado em: 03/05/2018
-
4. Nutrient Uptake by High-Yielding Cotton Crop in Brazil
ABSTRACT: Determining nutrient uptake and accumulation rates by cotton crops is important to define management strategies, especially for transgenic varieties, which are cultivated using high-technology approaches that require substantial investment to maximize yield. Currently in Brazil, the states of Bahia and Mato Grosso are responsible for 84.4 % of the
Rev. Bras. Ciênc. Solo. Publicado em: 15/02/2018
-
5. Tillage, fertilization systems and chemical attributes of a Paleudult
Tillage and fertilization methods may affect soil fertility. With the aim of assessing changes in soil chemical properties over a period of ten years, soil samples of a Paleudult were collected over nine seasons at three layer depths (0-5, 5-10, 10-20 cm) and were chemically analyzed. Grain yield and nutrient export in two summer crops, soybean (Glycine max)
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-02
-
6. Cowpea symbiotic efficiency, pH and aluminum tolerance in nitrogen-fixing bacteria
Cowpea (Vigna unguiculata) cultivation in northern and northeastern Brazil provides an excellent source of nutrients and carbohydrates for the poor and underprivileged. Production surplus leads to its consumption in other regions of Brazil and also as an export commodity. Its capacity to establish relationships with atmospheric nitrogen-fixing bacteria is cr
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-06
-
7. Estudo comparativo de respostas da banana Ãs aplicaÃÃes de fertilizante mineral e biofertilizante na Chapada do Apodi - CE / Comparative study on the responses of the banana to mineral fertilizer and biofertilizer applications
The liquid biofertilizers have been used with relative success in the recovery of banana plantations that have low productivity due to long time of cultivation. The area of the present study needs further investigations because there is little information available related to the cultural practices that could increase the time of the crop yield. The objectiv
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/11/2011
-
8. DINÂMICA DO FÓSFORO NA INTEGRAÇÃO LAVOURA-PECUÁRIA SOB SISTEMA PLANTIO DIRETO / Phosphurus dynamic in crop livestock integration under notillage.
The necessity to preserve the soil, coupled with the constant search for lower production costs and increased productivity resulted in the use no-tillage (NT). Efficient technique in the preservation and use of highly weathered soils (tropical and subtropical soils). However, only the continuous cultivation of monocultures has been implicated in reduced prof
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/11/2011
-
9. DESENVOLVIMENTO INICIAL DE UM PLANTIO MISTO DE Eucalyptus urograndis E Acacia mearnsii EM SISTEMA AGROSSILVICULTURAL / INITIAL GROWTH AND PRODUCTIVITY IM MONOSPECIFIC AND MIXED STANDS OF Eucalyptus urograndis AND Acacia mearnsii IN AN AGROFORESTRY SYSTEM
Understanding the initial development in consortiated systems are vital to decide about practices to obtain a sustainable productivity, in relation to environmental resources in an agrossilvicultural site. Due to this, this study had as objective: - to evaluate the agricultural productivity in agroforestry systems with different arrangements of the forest sp
Publicado em: 2010
-
10. Availability and accumulation of potassium, calcium and magnesium in crops of eucalyptus in several forest sites / Disponibilidade e acúmulo de potássio, cálcio e magnésio em plantações de eucalipto em diversos sítios florestais
The knowledge of the alterations of the nutrient contents in the soil compartments, caused by the variations in the changeable and non-changeable forms over time and the relation of these nutrients with the nutrient export by the eucalyptus, may provide safe indications as to the use of soils and, therefore, of the forest sites studied and, consequently, all
Publicado em: 2008
-
11. Fertilization of pre-planting on growth, production and quality of blackberry (Rubus sp.). / Adubação de pré-plantio no crescimento, produção e qualidade da amoreira-preta (Rubus sp.)
Blackberry is a temperate climate fruit that due to its rusticity, good yield, fast economic feedback and several options of market, it is a good alternative for small farms diversification. The objective of this work was to assess the effect of seven different pre-planting fertilizers on blackberries cultivars Tupy and Xavante. The experiment was carried ou
Publicado em: 2008
-
12. EXPORT OF NUTRIENTS IN CUPUAÇU FRUIT (Theobroma grandiflorum) IN THREE SOILS OF THE AMAZONIA / EXPORTAÇÃO DE NUTRIENTES EM FRUTO DE CUPUAÇU (Theobroma grandiflorum (Willd. ex Spreng.) Schum.) EM TRÊS SOLOS DA AMAZÔNIA CENTRAL
The farmers that grow cupuaçu (Theobroma grandiflorum (Willdenow ex Sprengel) Schumann, Sterculiaceae) recognize the importance of fertilization to increase productivity, but little research has been done to identity an agronomically correct and economically viable, scheme. The present study evaluated the from exportation of nutrients by the cupuaçu fruit
Publicado em: 2005