Open AccessEvaluation suitability of Guanzhong land for green and selenium-rich planting
Author(s) -
Huawei Ji,
R. Rui,
Aorui Li,
Jiping Chen,
Xinxing Qiao,
Yali Zhang
Publication year - 2022
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/983/1/012113
Subject(s) - sowing , environmental science , alluvium , soil test , green food , alluvial soils , rhizosphere , soil water , soil quality , agronomy , biology , soil science , ecology , raw material , paleontology , genetics , bacteria
To carry out the suitability evaluation of green and selenium (Se)-rich planting in Guanzhong area, 74 maize plant samples and 74 rhizosphere soil samples were collected. Our results showed that all soils in the Guanzhong area were clean and pollution-free, but only cinnamon soil and alluvial soil can be divided into green Se-rich land. Moreover, there is safe and no heavy metal exceeded standard in maize seed samples in the Guanzhong area, but only Se content of maize seeds grown in cinnamon soil and alluvial soil reached the Se content standard of Shaanxi Se-rich food (> 0.05 mg/kg) according to soil environmental quality standard, the national standards for food safety, natural selenium-rich land demarcation and identification, and Se-rich food standard of Shaanxi province. These results indicated that cinnamon soil and alluvial soil in the Guanzhong area was very suitable for planting natural, green and safe Se-rich crops.