Productivity potential of climate-soil for double cropping rice in Fujian Province based on GIS technology;

Field experiments were conducted in double cropping rice field during 2005-2006 to study the effects of no-tillage cast transplanting on rice nutritional characteristics.

Field experiments were conducted in double cropping rice field during 2005-2006 to study the effects of different tillage methods on the changes of rice growth,its yield and soil fertility.

Based on the WOFOST crop model, jointing the climate simulated data produced by climate model, the simulation research was carried out about the impacts of the climate change on the yields and growth of double-harvest rice in the southern China during the future one hundred years.

Effect of potassium application on its efficiency and balance in double rice regions in Hunan Province;

Relationship between distribution of photosynthesis production of flag leaf of main crop and yield of ratooning rice;

Comparison of rice quality between main crop and ratoon crop;

The grain qualities including milling, appearence, cooking and nutrition qualities of 20 middle season rice varieties (hybrid crosses) were compared between their main cropping rice and ratooning cropping rice.