Objective: To establish the suitable quality standards of Semen Euphorbiae and Semen Euphorbiae Pulveratum, carrying out the studies on standardized processing condition of Semen Euphorbiae.

Studies on Cleansing Mechanism of Semen Euphorbiae;

Experimental Studies on Standardized Processing Condition of Semen Euphorbiae;

Objective:To determine the contents of the Semen Euphorbiae from different habitats.

Isolation and Identification of Allelochemicals from Wheat and Allelopathy on Leptochloa chinensis in Direct-Seeding Rice Field;

The eco-economic threshold and the critical period for controlling Leptochloa chinensis in direct-sowing rice fields;

STUDY ON INFESTATION,DAMAGE AND ECO-ECONOMIC THRESHOLD OF Leptochloa chinensis IN DIRECT-SOWING RICE FIELDS;

Because of no differences with weeds in time and location, direct sowing rice with labor saving, low investment and high yield potential also has some shortages in competition for space, so the harm degree of weeds is increased, such as moleplant seed which is unsusceptible to normal weed killers and becomes a severe weed.

Caper Euphorbia Seed is the dried ripe seed of Euphorbia lathyris L.

and Euphorbia lathyris L.

Six non-terpenoid compounds were isolated from the dry and mature seeds of Euphorbia lathyris L.

Objective:To determine three diterpenoids,euphorbia factor L1(compound Ⅰ),euphorbia factor L2(compound Ⅱ) and euphorbia factor L3(compound Ⅲ) in seeds of Euphorbia lathyris L.