Utilization of different tillage models for improvement of soda-alkaline glebe in Songnen Plain;

The effect of saline-sodic stress on quality of tomato(Lycopersion esculentum Mill) fruit was studied by culturing tomato in various salinity and pH soil mixed with non-sodic soil and sodic soil.

Applied research of vibrating deeply-loosening tillage technology and biochemical reagents combination for improving soda saline-alkali soil;

2 in the balanced solution of soda alkali-saline soil.

This article emphatically discussed the improvement effect of aluminum sulfate on bad physical characteristics of soda alkali-saline soil.

Aiming at a series of problems above that should be urgently solved,it is studied using deeply vibrating-loosening technology and improvement preparation of biological chemistry,and evaluating application effect of integrative technology on improvement of soda alkali-saline soil.

Aquatic microorganism fauna in fish-rice ecosystem in soda saline-alkaline land.;

Species and population of microorganisms in water and soil of the fish-rice ecosystem in soda saline-alkaline land of Songnen Plain were studied.