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Nitrogen effect on gas exchange characteristics, dry matter production and nitrate accumulation of Amaranthus cruentus L.
(2019-01-01)
Among the mineral nutrients, nitrogen stands out as an essential constituent of amino acids, nucleic acids and proteins, as well as being part of the photosynthetic apparatus. The present study aimed to evaluate the responses ...
Effects of nitrate concentration on larval development of the giant river prawn, Macrobrachium rosenbergii
(2003-12-01)
The effect of nitrate concentration on giant river prawn, Macrobrachium rosenbergii, larvae was investigated. Survival rate, weight gain, and larval development were evaluated for different concentrations of nitrate in ...
Effects of nitrate concentration on larval development of the giant river prawn, Macrobrachium rosenbergii
(2003-12-01)
The effect of nitrate concentration on giant river prawn, Macrobrachium rosenbergii, larvae was investigated. Survival rate, weight gain, and larval development were evaluated for different concentrations of nitrate in ...
Response of orange seedlings to the proportion of nitrate-ammonium in the nutrient solution and the benefits of phosphorus in ammonia toxicity
(2021-07-27)
The imbalance between nitrate/ammonium (NO3−/NH4+) ratio in the nutrient solution induces ammonia toxicity that can be attenuated by phosphorus (P). However, there are no reports of the beneficial effect of P in mitigating ...
Avaliação ecotoxicológica da adição de nitrato em sedimentos eutrofizados da Represa Ibirité (Betim MG): experimentos em microcosmos
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Ecologia e Recursos Naturais - PPGERN, 2009-05-15)
The objective of the present dissertation was to make a toxicity assessment of the application of calcium nitrate solution as a remediation procedure for sediments of a
eutrophic aquatic ecosystem. The study was carried ...
Impact of nitrate and ammonium ratio on nutrition and growth of two epiphytic orchids
(2018-10-01)
Phalaenopsis and Dendrobium do not grow and flower well with 100% ammonium (NH4-N); and there are detailed studies on the effects of nitrate (NO3-N) and ammonium ratios on the flowering, but no information about accumulation ...
Growth, nutritional status and nitrogen metabolism in Vigna unguiculata (L.) Walp is affected by aluminum
(2014-01-01)
Al toxicity is one of the most important abiotic stresses that reduce the growth and development of plants. From a physiological standpoint, Al affects the activity of several important enzymes such as nitrate reductase, ...
A brief comparative evaluation of nitrate in organic vs. conventional produce and consequences
(2012-11-01)
The present chapter reports on the distribution of nitrates and nitrites in plants cultivated following organic and conventional procedures, in the attempt to give a deeper insight into some possible differences and to ...
Calcium nitrate addition to control the internal load of phosphorus from sediments of a tropical eutrophic reservoir: Microcosm experiments
(PERGAMON-ELSEVIER SCIENCE LTDOXFORD, 2012)
The main objective of this study was to perform laboratory experiments on calcium nitrate addition to sediments of a tropical eutrophic urban reservoir (Ibirite reservoir, SE Brazil) to immobilize the reactive soluble ...