Methods of soil auger and pot experiment were used to research vertical root distributions and drought resistance of main plantingtree species in the Weibei loess plateau.
采用土钻法和盆栽试验研究了渭北地区主要造林树种的垂直根系分布特征及其抗旱性。
2
Based on the machine development, a research and analyses of auger drill bits with different kinds of drill tips and soil cut blade angles were carried out in treeplanting field.