Research Article
[Retracted] Spatial-Temporal Variation Characteristics of Soil Moisture and Nutrients Based on Nanomaterials in the Root Zone of Haloxylon ammodendron Seedlings
Figure 12
Content of available potassium at soil horizontal-vertical space in the root zone of seedlings in the growth period. Note: different capital letters showed that the soil moisture content of the same layer in the same period has significant differences at different horizontal distances ().