Understanding the role of pig manure, rice straw and calcium carbonate on the cadmium pollution in soil-wheat system

 To explore the specific effects of pig manure and rice straw on cadmium-contaminated soils and the effect of different mass fractions of calcium carbonate on cadmium efficacy, a pot experiment was conducted with different rates of pig manure (RS), rice straw (PM) and calcium carbonate (CC). The results showed that pig manure addition increased the soil HA/FA ratio, thereby reducing the available Cd. The addition of calcium carbonate increased the soil pH and reduced the available Cd, The addition of pig manure and calcium carbonate significantly reduced the Cd content of wheat grains by 51.96% and 45.95%, respectively, at 3% and 5% application rates. Rice straw application reduced the soil pH, improved the soil Cd availability, and increased the accumulation of Cd in wheat grains. Compared with that in the control, the grain biomass increased significantly with 3% pig manure and 3% rice straw application, and the grain biomass increased significantly, by 58.86% and 39.11% and 93.3% and..., The wheat samples harvested in October were separated into roots, stems, grains. The plant tissues were subsequently washed with deionized water 2-3 times. The plants were then incubated at 105℃ for 30 min, then at 70°C until a constant weight was reached, after which the dry weight was measured. The dry samples of each part of the plant were ground and sieved. Soil samples were collected after plant harvest, then sieved through 0.85 mm and 0.15 mm polyethylene mesh after air drying.
The soil Cd was extracted by the DTPA [TEL (0.005 mol/L DTPA-0.100 mol/L triethanolamine)-0.010 mol/L CaCl2]  leaching method, The plant samples were digested with HNO3-HClO4, the soil samples were digested with HNO3-HClO4-HF, the digested samples were subjected to inductive-coupled-plasma-emission spectroscopy (Agilent 5110 ICP‒OES) . Other physicochemical properties of the soil were determined with reference to the Methods of Agricultural Chemical Analysis of Soil: The pH values of the soil samples (1:2.5..., , # Understanding the role of pig manure, rice straw and calcium carbonate on the cadmium pollution in soil-wheat system

[https://doi.org/10.5061/dryad.m63xsj4bp](https://doi.org/10.5061/dryad.m63xsj4bp)

## Description of the data and file structure

* Sheet 1 is the original data of Table 1 in this paper, including some basic physical and chemical properties of the soil tested；

- Sheet 2 is Table 2 in this paper, including the basic physicochemical properties of the tested materials；

* Sheet 3 is the original data of Figure 1 in this article, including changes in soil pH (1:2.5 w/v) (in red), alkali-hydrolysable N, Olsen's P (in red), and available potassium under different treatments; 

- Sheet 4 is the original data of Table 3 in this paper, which is the biomass of each part of wheat under different treatments; 

* Sheet 5 is the original data of Table 4 of this paper, which is the cadmium content of each part of wheat under different treatments;

- Sheet 6 is the original data of ...