关键词: 稻米品质, 土壤, 生态因子, 相关性

Abstract: Adopting the method of pointed sampling, timely planting and harvesting in the field, it studied the relationship between rice quality and the eco-factors of main soils in Sichuan Basin Area. The result indicates that:①Each character of rice quality and general quality are influenced, to some degree, by height above sea level texture and content of nutrient; the influence on each character of rice quality and general quality by different soil eco-factors disagree, the partial correlation analysis can even more correctly show the linearity degree of two variables compared with simple correlation analysis; ②Based on the results of simple correlation analysis, height above sea level and the content of physical clay coarse silt organic matter available cuprum available iron available manganese are the main soil eco-factors which influence the rice quality; ③Based on the results of partial correlation analysis,the height above sea level, thickness of cultivated layer, the content of organic matter, total nitrogen available and nitrogen available cuprum are the main soil eco-factors which influence the rice quality.

Key words: RICE QUALITY, SOIL, ECO-FACTORS, RELEVANCE CHARACRTER