Study on Working Parameters of Knife Roller of Field Straw Chopper for Mulching or Reclaiming;

Carries on performance test in the cotton field to Straw Chopper for mulching or reclaiming,designated the stubble height,the straw smashing length and the throwing distance to take the main performance index.

Investigation development and distribution status of weeds in tobacco fields of Guangdong province;

Spatial distribution patterns and sampling techniques of Cyperus rotundus L. in tobacco fields;

Sensitivity of the dominant weeds in tobacco field to herbicides;

The spatial distribution pattern and sampling method of the larvae of Leis axyridis in tobacco fields.;

This paper deals with the influences of some agrochemicals, mostly used in tobacco fields, on the survival rate, developmental duration, eggs laid by per female and leaf consumption of G.

Study on the preparation of granular activated carbon from tobacco stems by microwave radiation and water vapor;

Study on the preparation of granular activated carbon from tobacco stems with carbon dioxide;

Technology for preparing activated carbon from tobacco stems with zinc chloride solution impregnated by microwave irradiation;