Describes the research and development of a multi-purpose Cultivator,the structure is novel,it is using for flood and drought,there are earth up and rotary tillage for the key features.

Under the condition of soil culture,three moisture rates and two nitrogen application rates were designed to investigate the effects of water and nitrogen coupling on morphological characteristics and activity of root system in Shanyou 63.

Results showed:effects of soil culture and solution culture on root number and root length is restricted by nitrogen fertilizer;average root length and longest root length under soil culture is bigger than that under solution culture;root weight and leaf weight under different cultivation style is concerned with water condition.

Cortical cells and crystal cells in mature region were fewer than those under soil culture.

Design and development of waste-cotton nonwoven substrate for soilless culture;

Adaptive fuzzy control system of circulating nutrient solution system in soilless culture;

Study on substrates mixed mainly with agricultural wasted staff in soilless culture of tomato;

Determination of Microelements in Tea and Its Cultivating Soil by Microwave Digestion-Atomic Absorption Spectrometry;

Studies on seed germination and soilless cultivation of Schizonepeta tenuifolia;

On the application of soilless cultivation of orchids in scientific and technological activities for middle school youngsters;

Purification of Liwahe creek which belonged to a eutrophic water body was studied by means of soilless cultivation techniques on artificial substratum from may, 1992 to March, 1998.