On the basis of the parametric method of single AGB star with s-process nucleosynthesis,a mass accretion parametric model is presented for the extrinsic AGB stars:In a binary system,the host,with a mass transfer rate for stable RLOF,transfers the material in successive pulses to the companion,and the latter will be a extrinsic AGB by receiving and mixing these material in its surface.

Based on field hydrographic surveys and sediment data analysis,the influences of water and sediment characteristics,component of deposited material and variation of salinity on depositional rate of sediment in the area is discussed and sediment source as well.

Regulation of phosphate on growth and material accumulation of Dunaliella salina;

The material accumulation was its base for format.

0 mg/L in the culture medium,in which cell density was less and in turn low material accumulation.

Effect of pod shading on pod and seed matter accumulation at soybean seed formation stage;

The result of the study on the proceeding in stem mustard hybrid matter accumulation indicates: various organs of stem mustard hybrid material accumulation correspond "Logistic" growth curve;the growth peak period of stem is in 15.

In order to master the growth orderliness of different types of feeding maize,the growth duration and leaf area and dry matter accumulation and water content were studied under five densities(48 000,58 500,69 000,79 500 and 90 000 plants/hm~2) on silage type maize of keduo 8 and foodstuff type maize of shaandan 310 in use at present.