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Showing 1 to 14 of 14 for “"nitrogen nutrition"”.
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Some aspects of nitrogen nutrition on selected Ilex
… 3 liter containers at 200, 300, 400 and 500 ppm nitrogen (N). Significant correlation coefficients were found between plant growth (dry wt accumulation) and both leaf N content and soil solution nitrates, while low correlation coefficients were found between soil nitrates and plant growth. Shoot …
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Nitrogen nutrition of harmful algal blooms in upwelling systems
… de Vigo), with the aim of identifying common nitrogen nutrition strategies of HAB species that may allow them to succeed in upwelling systems. Two summer field studies were also carried out in the Fal Estuary (UK) to identify possible differences between a UK estuary and these upwelling …
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Physiological role of mixed nitrogen nutrition in enhancing productivity of maize
… many studies have shown that mixed N nutrition (NH$\sb4\sp+$ + NO$\sb3\sp-$) can optimize productivity. However, the physiological processes that are beneficially altered by mixed N have not been elucidated. Therefore, studies were conducted to compare plant productivity traits under …
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Nitrogen nutrition and growth regulator properties of oxamide on wheat and soybean
Call number: LD2668 .T4 AGRN 1987 S38
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Nitrogen nutrition and growth regulator properties of oxamide on wheat and soybean
Call number: LD2668 .T4 AGRN 1987 S38
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The nitrogen nutrition of maize on dryland soils of the central Orange Free State
… Orange Free State soils vary considerably in the nitrogen supply to dryland maize. In some localities the soil supplies adequate amounts of nitrogen so that nitrogen fertilizer does not lead to any growth response. In other localities soils are poor in nitrogen and require nitrogen fertilizer for …
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Effects of Daylength, Temperature and Chemical Defoliants on Senescence, Defoliation and Nitrogen Nutrition of the Apple
Made available in DSpace on 2014-12-14T15:45:31Z (GMT). No. of bitstreams: 1 7709204.pdf: 3002197 bytes, checksum: cc17d4e7b2d18a8852cbe8faccf6bcf1 (MD5) Previous issue date: 1976
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Some aspects of the nitrogen nutrition and growth of Gracilaria gracilis grown by suspended cultivation in Saldanha Bay, South Africa
… by upwelling. This study documents the extent of nitrogen starvation during this period and investigates some possible methods of managing this problem. Nitrogen content, C:N ratio and stable isotope abundances of C and N were obtained for material grown for varying lengths of time, material grown …
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CHARACTERIZATION OF PROTEOMIC CHANGES IN CROPS DURING METABOLIC ADAPTATION TO DIFFERENT NITROGEN INPUTS
Nitrogen availability is one of the major factors that influence plant growth, morphology, and metabolism and, hence, crop productivity. In agricultural soils, nitrogen is present in different forms, both inorganic (nitrate and ammonium) and organic (amino acids, short peptides and urea), with …
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Role and regulation of glutamate dehydrogenase activity in Bacteroides fragilis bf1
… NADH-dependent (GdhB), their specific roles in nitrogen assimilation were not clearly resolved. In this dissertation, the physiological and molecular factors affecting the regulation of GDH activity in B. fragilis were examined, with a view to extending our understanding of nitrogen assimilation …
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Characterizing the role in amino acid sensing and signaling of Amino Acid Permease 1 in Arabidopsis
… to allocate amino acids to meet the demand for nitrogen in growing tissues. In particular, while characterized in yeast and mammals, no amino acid sensor has been identified in plants. Amino Acid Permease 1 (AAP1) has been previously characterized and was shown to mediate amino acid uptake from …
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Potato growth and productivity under different biological nitrogen fertilization strategies
… em DBC com quatro repetições. O estado nitrogenado da batata foi avaliado pelo índice SPAD e teor de N-total após a aplicação de EC. A produção de matéria seca, a eficiência de recuperação de N e a sua distribuição entre folhagens e tubérculos foram quantificados antes da senescência. …