Why do farmers in Ping Bian continue to plant such a tightly controlled, labor intensivecrop?
为什么屏边的农民还要继续种这种控制严格、劳动密集的作物呢?
2
Under intensive cropping with retention of crop residue management regimes, soils can become suppressive to Rhizoctonia root rot.
保留作物残体的精耕栽培制度可使土壤变为对病害有抑制作用的抑病土。
3
The aim of the field experiment was to investigate to what extent such a system could prevent soil degradation resulting from very intensivecrop rotations.