Critical functions in the human body require mineral nutrients that are obtained through consumption of food. Calcium is required for constructing and maintaining bones, clotting of blood, and for function of hormones and enzymes ( Department of
, where roots are unable to acquire Fe ( Hell and Stephan, 2003 ). Lime-induced Fe deficiency has a strong effect in the production of several fruit crops of high economic importance grown in calcareous soils. Iron chlorosis is a common problem in peach
deficiency and toxicity in sweetpotato is of fundamental and practical importance in this globally important crop. One of the means that plants adapt to variation in soil nutrient availability is by altering root system architecture (RSA) (reviewed in
filter were also observed. Nutrient deficiency in Expt. 2 may have caused severe root necrosis for plants in the AC filter treatment, which might in turn result in insufficient macronutrient absorption and subsequently higher nutrient levels in irrigation
Abstract
In a study of nutrient requirements of American ginseng (Panax quinquefolium L.) foliar deficiency symptoms of Ca occurred first, followed by those for Mg and P. N-deficiency symptoms occurred very gradually, and S-deficiency symptoms never appeared. Root fresh weight gain was most restricted by omission of either Ca, P, or Mg from the nutrient solution. Omission of S resulted in a root fresh weight gain equal to that obtained with complete nutrient solution.
.L. Pitchay, D.S. Williams-Rhodes, A.L. Whipker, B.E. Nelson, P.V. Dole, J.M. 2007 Nutrient deficiencies in bedding plants. Ball Publ., Batavia, IL Hansen, C.W. Nielsen, K.L. 2000 Non-chemical growth regulation of ornamental plants Grøn Viden 121 1 4 Hansen, C
for decades ( Ezell and Wilcox, 1958 ; Hagenimana et al., 1999 ; Purcell, 1962 ; Purcell and Walter, 1968 ), and currently OFSP is considered a complementary food approach to alleviate vitamin A deficiency (VAD) in the world ( Low et al., 2001
The efficiency of nutrient and water use is generally higher with subirrigation than with drip irrigation because subirrigation greatly reduces water leaching ( Goodwin et al., 2003 ; Incrocci et al., 2006 ; Santamaria et al., 2003 ). For uniform
chelate reductase activity J. Plant Nutr. 24 1609 1620 Pestana, M. de Varennes, A. Abadía, J. Araújo Faria, E. 2005 Differential tolerance to iron deficiency of citrus rootstocks grown in nutrient solution Sci. Hort. 104 25 36 Pestana, M. de Varennes, A
related to the infection, but rather are directly related to starch allocation and and/or nutrient deficiencies. Literature Cited Achor, D.S. Etxeberria, E. Wang, N. Folimonova, S.Y. Chung, K.R. Albrigo, L.G. 2010 Sequence of anatomical symptom