Soil micronutrient availability to crops as affected by long-term inorganic and organic fertilizer applications

Li, B.Y.; Zhou, Dong; Cang, Long; Zhang, Hailin; Fan, Xiangtao; Qin, Sheng Wu

doi:10.1016/j.still.2007.05.005

Cited by 200 publications

(144 citation statements)

References 11 publications

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“…Phosphate can affect micronutrient availability by direct precipitation of nutrient cations. However, the effect varies among micronutrients and depends on other soil properties, such as water content (Li et al, 2007), pH (Wei et al, 2006) and metal solubility (Shuman, 1988), which helps to explain the varied relationships between P and micronutrient concentrations ( Tables 2, 3, and 4) in this study. Correlation analysis revealed significantly negative correlations between water-extractable Ca and Fe (r 2 = −0.86) and Mn (r 2 = −0.29), indicating that the increasing CaCO 3 content in these soils with ongoing subsidence will likely to decrease micronutrient availability in the future, making fertilizer management even more critical.…”

Section: Soil Properties and Micronutrient Availabilitymentioning

confidence: 87%

“…Interactions among nutrients affect their availability to crops as an over-abundance of one nutrient may lead to a deficiency of another. For instance, excessive phosphorus (P) fertilization can decrease zinc (Zn) availability due to precipitation (Li et al, 2007). Thus, applying proper amounts of fertilizers or amendments minimizes nutrient imbalances, maximizes crop yields, and improves fertilizer use efficiency.…”

Section: Introductionmentioning

confidence: 99%

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Seasonal Changes in Nutrient Availability for Sulfur-Amended Everglades Soils Under Sugarcane

Wright

McCray

2011

Journal of Plant Nutrition

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Section: Soil Properties and Micronutrient Availabilitymentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Seasonal Changes in Nutrient Availability for Sulfur-Amended Everglades Soils Under Sugarcane

Wright

McCray

2011

Journal of Plant Nutrition

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“…Zn deficiency in human causes growth stunting, susceptibility to infectious diseases, and Fe-deficiency anemia [4]. Deficiency of other micronutrients results in slow growth, anemia, decreased immunity and nyctalopia [5]. Micronutrients play an important role in plants nutrition.…”

Section: Introductionmentioning

confidence: 99%

“…Micronutrients such as Cu, Zn, Fe and Mn present in grain directly affect food quality [1]. Nonetheless, for years too little attention was paid to micronutrients fertilization practices [5].…”

Section: Introductionmentioning

confidence: 99%

Biofortification of maize with micronutrients by Spirulina

et al. 2015

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Abstract:The aim of the present work was to examine the effect of the application of Spirulina platensis post-extraction residues enriched with Zn(II), Mn(II), Cu(II) via biosorption as micronutrient fertilizer for the biofortification of maize grains with micronutrients in field tests. As a nominal dose 2.5 kg ha -1 of zinc, 1.0 kg ha -1 of manganese and 0.5 kg ha -1 of copper were applied. The preparation was applied also in higher doses (150%, 200%) to investigate agronomic biofortification of maize grains. In field trials, obtained grain yield (7.2 Mg ha -1 for Spirulina 100%) was higher than in control group (6.2 Mg ha -1 ) and commercial reference product (6.6 Mg ha -1 ). For the same dose of micronutrients, their bioavailability was higher for bio-preparations than for reference fertilizer. The highest content of micronutrients delivered to plants (2.15 mg kg -1 -Cu, 7.07 mg kg -1 -Mn, 29.0 mg kg -1 -Zn) was observed for maize grains fertilized with preparation of Spirulina 150%, which signifies that biofortified maize grain was obtained. Corn grains biofortified with micronutrients can be used as staple food or feed preventing from micronutrient malnutrition. The application of micronutrient biocomponents based on Spirulina biomass allows to manufacture a valuable fertilizer with bioavailable micronutrients.

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“…13,190.85 and 433.76 million tons of cobs, leaves and stalks in 2011, respectively. Currently, these residues have a number of limited applications including: (a) use of corn cobs as building material and activated carbon [13,14], (b) use of corn leaves as a feedstock for fermentable sugars and supplemental fiber source for paper pulp [15] and (c) use of corn stalks as livestock feed and biofertilizer [16,17].…”

Section: Introductionmentioning

confidence: 99%

Corn stover thermal decomposition in pyrolytic and oxidant atmosphere

Conesa¹,

Urueña²,

Dı́ez³

2014

Journal of Analytical and Applied Pyrolysis

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The pyrolysis and combustion of corn stover were studied by dynamic thermogravimetry and derivate thermogravimetry (TG-DTG) at heating rates of 5, 10, 20 and 50 K min -1 at atmospheric pressure. For the simulation of pyrolysis and combustion processes a kinetic model based on the distribution of activation energies was used, with three pools of reactants (three pseudocomponents) because of the complexity of the biomass samples of agricultural origin. The experimental thermogravimetric data of pyrolysis and combustion processes were simultaneously fitted to determine a single set of kinetic parameters able to describe both processes at the different heating rates. The model proposed achieves a good correlation between the experimental and calculated curves, with an error of less than 4 % for fitting four heating rates simultaneously. The experimental results and kinetic parameters may provide useful data for the design of thermo decomposition processing system using corn stover as feedstock. On the other hand, analysis of the main compounds in the evolved gas is given by means of a microcromatograph.

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Soil micronutrient availability to crops as affected by long-term inorganic and organic fertilizer applications

Cited by 200 publications

References 11 publications

Seasonal Changes in Nutrient Availability for Sulfur-Amended Everglades Soils Under Sugarcane

Seasonal Changes in Nutrient Availability for Sulfur-Amended Everglades Soils Under Sugarcane

Biofortification of maize with micronutrients by Spirulina

Corn stover thermal decomposition in pyrolytic and oxidant atmosphere

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