Abstract:

In order to understand the distribution of boron in the soil of agricultural grain of the typical landform of Shandong Province, to explore the correlation between soil boron and other soil fertility indicators provide the basis for the rational application of boron fertilizer. Top cultivated soils (0-20 cm) were collected from 17 cities (116 counties) in Shandong Province and analyzed for plant available boron (B). The results showed that, the average content of cultivated soil available B in Shandong Province was 0.745 mg/kg with the range of 1.816-0.130 mg/kg. The decreased order of soil available B in different soil types was Fluvo-aquic Soil > Cinnamon Soil > Shajiang Black Soil > Brown Soil. The landscape types also affected soil available B contents with Yellow River Flood Plain as the highest, East hills area as the lowest, and Hill Region in the middle. Statistical analysis (regression and correlation) indicated that, soil available B was affected positively by total nitrogen and negatively by soil organic matter.