Different commercial organic fertilizer amount and application time were tested in Qingxuan 2(a sorghum variety) planted in the sandy soil with the middle fertility to study the effects on its yield and quality.

To understand the effect of application of commercial organic fertilizer combining balanced fertilization of NPK chemical fertilizer on lettuce,the field experiment in this paper was conducted in 2004.

With the contrasts of such 4 means as no fertilizer, commercial organic fertilizer, inorganic compound fertilizer and organo- inorganic compound fertilizer, base fertilizer trials on eggplant are carried out from such factors as yield, spreading, alabasturum number, fruit-bearing number and monothalamic fruit weight etc.

The applied doses and methods of commercial organic fertilizers used in rice field with microplot test was systemically studied, by the techniques of balancing the use of commercial organic fertilizers with normal fertilizer, the qualities of the rice after using the commercial organic fertilizers and the releasing method of the commercial organic fertilizers in rice field were also discussed.

Studies on nutrient status of garden soil and effects of green-food specific organic fertilizer on Lingtou Single-bush tea;

The Research on Pricing of Tangible Goods in B2C E-commerce;

The present status and outlook of organic fertilizer industrialization in Shanghai;

Chemical analysis of nitrogen,phosphorus and potassium in organic fertilizers;

Present state and perspective of organic fertilizer industrialization in China;