In this paper,aiming at the current development of domestic agricultural production,introduced a variable fertilizer controller which suits for a domestic food-producing areas to promote output.

The composition of soil micro-aggregates is different under different fertilization regimes.

The results showed that different fertilization regimes(fertilizer,fertilizer+ cattle manure,fertilizer + straw) could significantly increase the contents of organic matter,total nitrogen,total phosphorus,available nitrogen,available phosphorus and available potassium by 19.

Adopting stanford mineralization rate method,the tested soils with different fertilization systems were aerobic incubated to study the nitrogen mineralization potentials(N0) and N-supplying capacity of soil.

Study of nitrogen nutrition and fertilization system in film mulch Abstract Winter wheat with film mulch has some advantages like drought-resistant, moisture-maintain, and early mature and high yield.

Ammonia volatilization from double-rice cropping field in red paddy soil was determined in a closed air-flow chamber under different fertilization systems.

Effect of fertilization systems on microbes in the paddy soil;

A 5─years period of locating study was made on the fertilization systems of shifting agricuIture,or-ganic agricuIture,petroleum agricuIture,and organic─inorganic agrlculture,The merits and demerits of the fer-tilization systems were evaluated according to the parameters of rice productivity,fertilizer effec,nutrient useefficient,nutrient balance and evolution of paddy soil etc.