ORGANOMINERAL FERTILIZERS EFFECT ON Cu AND Zn ACCUMULATION IN SPRING RAPESEED PLANTS

2021 ◽  
pp. 10-15
Author(s):  
Tatiana V. Zubkova ◽  
Dmitry V. Vinogradov ◽  
Olga A. Dubrovina ◽  
Vyacheslav L. Zakharov
Keyword(s):  
2009 ◽  
Vol 27 (Special Issue 1) ◽  
pp. S382-S385 ◽  
Author(s):  
J. Musilová ◽  
T. Tóth ◽  
J. Árvay

In this work the Cd, Cu and Zn accumulation in potatoes, their influence on starch, water-soluble (WSS) and water-insoluble saccharide (WIS) contents and content of heavy metals in various saccharide fractions of potatoes were determined. The fraction of WSS was isolated by Somogyi method, the WIS fraction was obtained from delipided portion of potatoes. Enhanced pseudototal Cd contents in relationship to limit value 0.7 mg/kg of soil were determined in 13 soil samples (0.72–1.06 mg/kg). Contents of Zn and Cu were lower than their limit values in all observed soil samples. Observed heavy metals have not influence on their accumulation in potatoes, the Cd content in potatoes (0.0015–0.0042 mg/kg f.m.), Cu (0.0590–0.1780 mg/kg f.m.) and Zn contents (0.1887–0.3517 mg/kg f.m.) were also lower than their limit values. The proportion of observed heavy metals in selected saccharide fractions: Cd (mg/kg): 0.017–0.140 (starch), 0.0133–0.2293 (WIS), 0.8711–109.7713 (WSS); Cu (mg/kg): 0.067–1.433 (starch), 0.2844–6.9877 (WIS), 18.0134–1070.5216 (WSS); Zn (mg/kg): 6.667–66.300 (starch), 0.7869–23.3673 (WIS), 101.4842–4020.790 (WSS)


2012 ◽  
Vol 150 (1-3) ◽  
pp. 152-158 ◽  
Author(s):  
M. López-Alonso ◽  
J.L. Benedito ◽  
M. García-Vaquero ◽  
J. Hernández ◽  
M. Miranda
Keyword(s):  

Author(s):  
Zhongbin Liao ◽  
Yali Chen ◽  
Jie Ma ◽  
Md. Shafiqul Islam ◽  
Liping Weng ◽  
...  

The intense management practices in greenhouse production may lead to heavy metal (HM) accumulations in soils. To determine the accumulation characteristics of HM and to evaluate possible HM sources in greenhouse soils, thirty typical greenhouse soil samples were collected in Shouguang District, Shandong Province, China. The results indicate that the Cd, Cu, and Zn concentrations are, respectively, 164.8%, 78.6%, and 123.9% higher than their background values. In the study area, Cd exhibits certain characteristics, such as wide variations in the proportion of its exchangeable form and the highest mobility factor and geo-accumulation index, which are indicative of its high bioavailability and environmental risk. In addition, there is a significant positive correlation between pairs of Cd, P, soil organic carbon, and cultivation age. Combined with principal component analysis, the results indicate the clear effects that agricultural activities have on Cd, Cu, and Zn accumulation. However, Cr, Ni, and Pb have a significant correlation with soil Fe and Al (hydr)-oxides, which indicates that these metals mainly originate from parent materials. This research indicated that long-term intensive fertilization (especially the application of chemical fertilizers and livestock manure) leads to Cd, Cu, and Zn accumulation in greenhouse soils in Shouguang. And the time required to reach the maximum permeable limit in agricultural soils for Cd, Cu, and Zn is 23, 51, and 42 years, respectively, based on their current increasing rates.


Author(s):  
Binggan Wei ◽  
Jiangping Yu ◽  
Zhiqiang Cao ◽  
Min Meng ◽  
Linsheng Yang ◽  
...  

In China, greenhouse agriculture, which provides abundant vegetable products for human consumption, has been rapidly developed in recent decades. Heavy metal accumulation in greenhouse soil and products obtained have received increasing attention. Therefore, the availability and accumulation of cadmium (Cd), copper (Cu), nickel (Ni), lead (Pb), and zinc (Zn) and their association with soil pH, soil organic matter (SOM), inorganic nitrogen (IN), total nitrogen (TN), available phosphorus (AP), and planting year (PY) in greenhouse soils were analyzed. The results showed that the mean concentrations of available Cd, Cu, Ni, Pb, and Zn were 17.25 μg/kg, 2.89, 0.18, 0.36, and 5.33 mg/kg, respectively, while their suggested levels in China are 0.6, 100, 100, 120, and 250 mg/kg. Cd, Cu, and Zn might be mainly originated from fertilizer application. A lower soil pH significantly increased the available Cu, Ni, and Zn concentrations and reduced Cd, Cu, Ni, and Zn accumulation. A higher AP significantly increased the proportions of available Cu, Ni, and Zn and elevated Cd, Cu, and Zn accumulation. There was a strong positive correlation between Cd, Pb, and Zn availability and TN, while IN was negatively related to the availability and accumulation of Cu and Zn. It was concluded that chemical fertilizer application increased the availability of Cu, Ni, Pb, and Zn and the accumulation of Cd, Cu, and Zn. Manure application clearly elevated the accumulation and availability of Cd and Zn in greenhouse soil.


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