[Objective] Field experiments were conducted to study effects of different treatments of fertilization and irrigation on rice yield

soil nutrient and enzyme activity under straw amendment

and to provide theoretical support for the development of high quality

highly effective ecoagriculture. [Methods] Through field experiment

we designed three kinds of irrigation patterns and three nitrogen levels

total of nine experimental treatments

and set up three no straw treatments as a control. [Results] The application rate of nitrogen fertilizer was 225 kg/hm2

the shallow wetland regulation irrigation mode can help control the tiller

reduce plant height

form a reasonable population structure. Different treatments of fertilization and irrigation had no significant effect on rice per panicle

seed setting rate

shallow wetlands regulation irrigation mode can effectively improve rice panicles and grain weight

thus improving rice yield. The rate of fertilizer was 225 kg/hm2

the shallow wetlands regulation irrigation mode can effectively improve the amount of SOM(soil organic matter)

TN(tatl N)

AP(availale P)

AK(available K). Straw amendment can significantly improve soil invertase activity

reduce soil urease activity

while the soil catalase activity had no significant change. In straw amendment field

rate of nitrogen fertilizer was 225 kg/hm2

the shallow wetlands regulation irrigation mode improved the most signifycantly on soil invertase activity

but different treatments of fertilization and irrigation did not significantly reduce the soil urease activity. [Conclusion] In straw amendment field

when the rate of fertilizer was 225 kg/hm2

shallow wetlands regulation irrigation mode can effectively improve rice yield and soil fertility.