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Chang-Tsern Chen, Ching-Lung Lee and Der-Ming Yeh

23 °C, as recommended for Eustoma growth ( Harbaugh, 1995 ; Harbaugh and Woltz, 1991 ; Islam et al., 2004 ). Table 1. Nutrient formulations used to induce nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), or magnesium (Mg) deficiencies in

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Huixia Li, Zhujun Chen, Ting Zhou, Yan Liu, Sajjad Raza and Jianbin Zhou

Magnesium is an essential mineral element for plant. It is the most abundant divalent cation in the cytosol of plant cells and plays a critical role in many physiological processes and reactions, such as photosynthesis, photophosphorylation, protein

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Sarah B. Everhart, Kathryn K. Fontenot, Edward W. Bush and Charles E. Johnson

is standard for retail media producers to add lime to their mixes. The addition of lime helps balance pH and supplies calcium and magnesium, essential elements for plant growth. Liming rates vary based on plant species, medium components, and lime

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Menahem Edelstein, Roni Cohen, Meital Elkabetz, Shimon Pivonia, Ami Maduel, Tom Sadeh-Yarok and M. Ben-Hur

) found that Mg concentration in grafted plants is lower than in their counterpart nongrafted. Fig. 3. Concentration of magnesium (Mg) in leaves of nongrafted (NG) and grafted (Gad, TZ) melons fertigated with standard or enriched fertilizer (2014 and 2015

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Timothy K. Broschat and Kimberly Anne Moore

the southern Atlantic coastal plain, nutrient deficiencies are common and corrective or prophylactic fertilization may be needed ( Gilman, 1987 ; Gilman et al., 2000 ). Palms (Arecaceae) in particular, which have high potassium, magnesium, and

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Silver Tumwegamire, Regina Kapinga, Patrick R. Rubaihayo, Don R. LaBonte, Wolfgang J. Grüneberg, Gabriela Burgos, Thomas zum Felde, Rosemary Carpio, Elke Pawelzik and Robert O.M. Mwanga

sweetpotato storage root mineral contents (especially trace minerals) are limited, particularly for African sweetpotato germplasm. Bradbury and Holloway (1988) reported storage root mineral content ranges of ≈75 to 740 ppm calcium, ≈180 to 350 ppm magnesium

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James M. Spiers

In a sand culture study, increasing Na levels increased leaf concentration of Na, Mg, Ca, Mn, and Zn, and reduced leaf K and plant dry weight. Magnesium fertilization did not affect leaf concentration of Ca, K, Mn, Fe, or Zn. High Ca fertilization increased leaf Ca. At high Mg levels, Ca fertilization had a synergistic influence on Mg uptake. Ca and Mg fertilization did not independently influence plant vigor, chlorosis symptoms, or dry weight production of leaves and stems. As levels of Na fertilization increased, plant vigor and leaf production decreased and chlorosis symptoms increased. With low Na fertilization levels, high Mg fertilization reduced leaf production but with high Na fertilization, plants receiving high Mg levels produced twice the weight of leaves as those with low Mg fertilization. High Mg fertilization reduced the detrimental effects of high Na fertilization on plant growth. This effect may be due to the antagonistic influence of Mg fertilization on Na uptake at high Na fertilization levels.

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Timothy K. Broschat

soil phosphorus (P), potassium (K), and magnesium (Mg) concentrations in plots mulched with organic mulches or none, but we are unaware of any studies documenting the effects of above versus below mulch applications of fertilizers on soil nutrient

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James E. Altland and Kay Yeon Jeong

equal molar ratios of CaCO 3 and magnesium carbonate (MgCO 3 ), but is 54.3% CaCO 3 and 45.7% MgCO 3 since the mass of Ca is larger than Mg ( Barber, 1984 ). Commercial sources of DL vary in their actual Ca and Mg proportions due to the geological

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Simone da Costa Mello, Francis J. Pierce, Rachel Tonhati, Guilherme Silva Almeida, Durval Dourado Neto and Kiran Pavuluri

Polyhalite is a naturally occurring potassium, calcium, magnesium sulfate mineral with a chemical formula K 2 Ca 2 Mg(SO 4 ) 4 ·2(H 2 O) corresponding to 13.0% K, 13.3% Ca, 4.0% Mg, and 21.3% S. Many horticultural crops including potatoes ( Solanum