Nutrient Solutions
Mostrando 13-24 de 151 artigos, teses e dissertações.
-
13. Water and physiological relationships of lettuce cultivated in hydroponics with brackish waters
RESUMO As necessidades da racionalização do manejo de águas salobras em cultivos hidropônicos constituem-se formas de ampliar e gerir a oferta hídrica em regiões de escassez. Neste sentido, este trabalho foi realizado com o objetivo de avaliar as relações hídricas e fisiológicas da alface americana (cv. Tainá) em plantas expostas a estratégias de
Rev. Ciênc. Agron.. Publicado em: 2019-06
-
14. Water relations of chives in function of salinity and circulation frequency of nutrient solutions
RESUMO O cultivo hidropônico com o uso de águas salobras, constitui-se em uma alternativa para a produção agrícola, especialmente no cultivo de hortaliças. Sendo assim, desenvolveu-se o presente trabalho com o objetivo de avaliar o consumo, eficiência e o teor de água, bem como a partição de massa seca de plantas de cebolinha (Allium schoenoprasum)
Rev. bras. eng. agríc. ambient.. Publicado em: 06/05/2019
-
15. Economic and Financial Analysis of Tree Seedling Production Using Composted Biosolids Substrate
ABSTRACT The aim of this study was to evaluate production profitability of Croton urucurana and Cytharexyllum myrianthum seedlings produced in substrates composed of mixtures of composted biosolids and carbonized rice husk in different concentrations of nutrient solution. Seedlings were subjected to three doses of fertigation solutions. In order to check qua
Floresta Ambient.. Publicado em: 02/05/2019
-
16. Production of parsley in hydroponic conditions under isosmotic brackish nutrient solutions
RESUMO As águas salobras podem apresentar variação na sua composição química, interferindo em diferentes respostas das plantas frente ao estresse, então, o presente trabalho objetivou-se em avaliar os componentes de produção da salsa submetida a níveis de condutividade elétrica da solução nutritiva inicialmente com CEsn = 1,58 dS m-1 que foram s
Ciênc. agrotec.. Publicado em: 25/04/2019
-
17. A glimpse of the future in animal nutrition science. 1. Past and future challenges
ABSTRACT If the world population continues to increase exponentially, wealth and education inequalities might become more pronounced in the developing world. Thus, offering affordable, high-quality protein food to people will become more important and daunting than ever. Past and future challenges will increasingly demand quicker and more innovative and effi
R. Bras. Zootec.. Publicado em: 2017-05
-
18. Iron Availability in Tropical Soils and Iron Uptake by Plants
ABSTRACT Given the increase in crop yields and the expansion of agriculture in low fertility soils, deficiency of micronutrients, such as iron, in plants grown in tropical soils has been observed. The aim of this study was to evaluate Fe availability and Fe uptake by corn (Zea mays L.) plants in 13 different soils, at two depths. Iron was extracted by Mehlic
Rev. Bras. Ciênc. Solo. Publicado em: 24/10/2016
-
19. Humic substances and its distribution in coffee crop under cover crops and weed control methods
ABSTRACT Humic substances (HS) comprise the passive element in soil organic matter (SOM), and represent one of the soil carbon pools which may be altered by different cover crops and weed control methods. This study aimed to assess HS distribution and characteristics in an experimental coffee crop area subjected to cover crops and cultural, mechanical, and c
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-08
-
20. Electrical Conductivity and Chemical Composition of Soil Solution: Comparison of Solution Samplers in Tropical Soils
ABSTRACT Soil solution samplers may have the same working principle, but they differ in relation to chemical and physical characteristics, cost and handling, and these aspects exert influence on the chemical composition of the soil solution obtained. This study was carried out to evaluate, over time, the chemical composition of solutions extracted by Suolo A
Rev. Bras. Ciênc. Solo. Publicado em: 2016
-
21. Magnesium-induced alterations in the photosynthetic performance and resistance of rice plants infected with Bipolaris oryzae
Brown spot (BS), caused by the fungus Bipolaris oryzae, is one of the most important diseases contracted by rice. We investigated the effect of magnesium (Mg) on the development of BS, caused by Bipolaris oryzae, and the effects of disease development on the photosynthetic performance of rice (Oryza sativa L.) plants (cv. Metica-1) grown in nutrient solution
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-08
-
22. Agronomic parameters assessment in hydroponic tomato crop
In this study we present the results of a comparative analysis of nutrient solution (NS) recycling and non-recycling treatments in hydroponic tomato crop. The established aims are to evaluate water consumption, pH and conductivity variation along the productive cycle in both treatments, to establish the differences in fruit yield and to assess the viability
Hortic. Bras.. Publicado em: 2014-12
-
23. Effects that nutritional and saline gradients have on the growth of Passiflora mucronata Lam. and Canavalia rosea (Sw.) DC. found in the restinga of Brazil
Salinity and fertility are the main factors cited in Within the restinga (coastal woodland) biome in Brazil, the positioning of Canavalia rosea and Passiflora mucronata occur, respectively, near the shore-in the creeping psammophyte formation (CPF) - and far from the shore - in the Palmae formation (PF). The hypothesis that such positioning is related to sal
Acta Bot. Bras.. Publicado em: 2013-06
-
24. Manejo da fertirrigação em Physalis cultivado em vaso com areia
With the increased media coverage of the nutraceutical properties of small fruits like strawberries, raspberries and other, consumer interest increases, and consequently its production. A species of the nightshade family that see recently is being cultivated Physalis L.. Its cultivation is simple, and managed according to the tomato crop. Several authors hav
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2012