Yellowing of crops is more often confused with nitrogen deficiency
but the plants yellow due to various reasons.
Urea addition in the corn stover silage successfully compensated nitrogen deficiency
while molasses not only neutralized and stabilized the effect of urea but also increased the basal energy of this diet.
This might be ascribed to chlorophyll degradation under nitrogen deficiency
does not, in fact, allow the yeast to produce sulfur-containing amino acids such as cysteine and methionine through the use of sulfates, sulfites and sulfur anions.
A combination of nitrogen deficiency
, moderately high light intensity and high Fe level improved lipid accumulation in four strains of Botryococcus sp.
Plants subjected to nitrogen deficiency
showed lower plant height compared to the other treatments, with a 65% reduction when compared to the control (Table 1).
When the plant has nitrogen deficiency
some symptoms are visible, such as the bleaching of the new leaves and the occurrence of chlorosis in the old leaves that become yellowish, and that will entail in a plant more susceptible to diseases and losses in productivity.
Supplemental UV-B radiation under high nitrogen decreased the biomass of plants with no effect when nitrogen stress was imposed, suggesting secondary protection against UV-B damage under nitrogen deficiency
(HUNT & MCNEIL, 1998).
Jie-Wen et al., "Nondestructive diagnostics of nitrogen deficiency
by cucumber leaf chlorophyll distribution map based on near infrared hyperspectral imaging," Scientia Horticulturae, vol.
Asparagine synthetase gene expression is dependent on nitrogen available and was reduced when nitrogen was limited [32, 33], and we also found that HvASN1 was repressed only in shoots, indicating that the primary effects of nitrogen deficiency
might appear initially in the shoots.
Be sure to watch throughout the growing season for yellow leaves (a sign of nitrogen deficiency
) or purple leaves (a sign of phosphorous deficiency).